GQ TB42 Vacuum Advance unit

[DavidJohn]

Hello all,
My vacuum advance unit on my '88 gq tb42 is dead, does anyone know of a supplier of these in Melbourne, (preferably south-east)?

Thanks in advance (some pun intended)
David

[patch697]

Hello all,
My vacuum advance unit on my '88 gq tb42 is dead, does anyone know of a supplier of these in Melbourne, (preferably south-east)?

Thanks in advance (some pun intended)
David

Check out this mob mate. I know they rebuild TB42 dizzies so im tipping they'd have a vac advance unit.


http://www.performanceignition.com.au/

[DavidJohn]

Thanks Patch, I'll try them, its a bad time of the year to be looking for suppliers who aren't shut down for the break, but good luck to them I say.

Regards
David

[patch697]

Thanks Patch, I'll try them, its a bad time of the year to be looking for suppliers who aren't shut down for the break, but good luck to them I say.

Regards
David

It won't stop your Jigger not having one for the time being anyways mate, just knock the timing up a few degrees to compensate for the loss of the total & it should be right.


I have an electric shutoff on mine so its non operational on LPG to give me less total one the LPG burn & when on petrol its switches on the give me my totel back for the petrol burn.

[taslucas]

It won't stop your Jigger not having one for the time being anyways mate, just knock the timing up a few degrees to compensate for the loss of the total & it should be right.


I have an electric shutoff on mine so its non operational on LPG to give me less total one the LPG burn & when on petrol its switches on the give me my totel back for the petrol burn.

Is that very common patch? How could i tell if i have this setup?

[patch697]

Is that very common patch? How could i tell if i have this setup?

nah mate I set it up myself so I could get the thing running better on both fuels.

[taslucas]

Thats a bit fancy lol nice one!

[chester]

G'day mate i have 2 dizzy's in my shed now im putting a 5lt in i don't need them let me know if you interested.

[patch697]

G'day mate i have 2 dizzy's in my shed now im putting a 5lt in i don't need them let me know if you interested.

PM sent mate.

[DavidJohn]

G'day mate i have 2 dizzy's in my shed now im putting a 5lt in i don't need them let me know if you interested.
PM sent Chester
Regards
David

[DavidJohn]

Hello all
Thanks to Patch for the info on compensating for the lack of vac advance.

Now here’s a Christmas story for those with nothing better to do with their time:
I've spent the morning getting around all the local wreckers looking for a replacement unit with no luck, Nissan genuine? Told that there are none in the country and it would be >two weeks and "genuinely” expensive of course.
Online place in Sydney (Nardek) shows one suitable for the tb42 on their website (It says it's for a ford maverick TB42, but they don't fool me!) but my attempts to contact them have come to nought so far, due no doubt, to the Christmas/new year shutdown.

More on my Patrol in general: It's an Auto 88 GQ Gas/Petrol TB42 with 340,000km used primarily as a tow hack, I looked at replacing it as it was getting tired, reasonable on gas but a disaster on petrol; didn't take too long to figure that I wasn't going to get a whole lot more to replace it unless I spent a whole lot more money.

I figured to spend some money in a few choice areas. I got the suspension checked, not too bad, and needed a few bushes replaced, 4 new shockers, new tyres that fixed up the ride a fair bit. I took the rig to a "LPG performance specialist" who was recommended by a couple of local businesses I dealt with, This has turned out to be a mistake, but I won't name and shame them just yet, that will depend on whether or not I get invoiced for the last lot of work they carried out! Let's just say that they are undoubtedly excellent at building and tuning high performance engines but in hindsight, I think the patrol has been a bit low tech for some of their skilled artisans.
Started off with a tune in which they replaced points only, and checked the whole thing over as I asked, noted a few issues: Carbie U/S- didn't need to be Einstein on that one I guess, Tail pipe restricted-OK, it was flat on one side, They agreed that the fuel filler hose was hard and kinked which made a petrol fill a very tedious affair at the pump, Gas tank needed re certification- No worries. Gas hose and a few fuel hoses needed replacing. I gave them the ok to do the work. They had the car for a week to get the tailpipe and carbie rebuilt, replace some hoses, fuel filter, forgot to check the gas tank this time around and inserted a metal pipe elbow into the fuel filler hose to straighten out the kink. I took it home. Next day; I switched from petrol to gas, and then back to petrol only to find I couldn’t get it to run on petrol! Took it back and they fitted me up with a new petrol pump, and petrol line cut off solenoid switch and replaced a dirty old fuel filter that was found down the back of the petrol tank. I took it home and still had issues switching and running it on petrol so I took it back again and they traced it to the petrol/gas switch, which they replaced. The old one was definitely stuffed, and this seemed to fix the issue.
I took it back again a couple of days later when I pulled the filler hose away from the tank whilst trying to remove the right rear shocker, It was on by about 15mm and the hose clamp had missed the metal spigot altogether. Luckily, at this stage, I hadn’t yet attempted to fill the petrol tank.
They told me it had only been a temporary fix as they had a fuel filler hose on back order due to its unavailability. Unfortunately, they must have forgotten to tell me when I paid them for this portion of the work. I asked around and found a place in Oakleigh that sold Gates Hoses etc. I bought a length and took it down to them. They installed it, opting to use a short portion of the old hose (instead of their clear plastic hose which carried no labels and looked similar to that to be found at Bunnings!) they used a joiner as the 90cm length wasn’t quite long enough to get between the coil and shocker comfortably. I was asked to inspect it and it looked OK and I said so.

A couple of days later, I was driving when the engine started misfiring on gas, I went to petrol, same again, I postponed my plans for the day and went to the workshop again. I waited there for a few hours whilst they played with it, they recommended a new set of plugs, leads and condenser. Funny thing, I seem to remember back in the olden days of home tuning with beer on a Saturday that you always renewed the condenser if changing the points, but they never did this at the tune up they did only a couple of weeks and some 500 KM before!
I agreed that the incumbent parts were at least a couple of years old and that as it was nearing the Christmas break, I did want the car to be reliable for when I used it to tow the boat to the Gippsland Lakes, So yes I said, replace the parts and I hoped they would tune it with their finest equipment.

They played, they test drove and played some more; drove it again and told me it seemed fine now; I should drive it awhile and bring it back for a final tune after around 1000Kms. I drove it home, it seemed sluggish, and after I clipped in the new leads that were flopping all around the engine bay I drove it around a bit over the next day or so and seemed to be going through more LPG than normal.
I thought it would be a good time to put a bit of cheap petrol in the tank as it was the Wednesday before Christmas so I took it to the servo. The fuel poured in the filler perfectly, no more clicking off, I checked underneath to see a steadily forming pool of petrol on the concrete; it was coming from the joint where the old hose met the joiner pipe. I paid for the petrol and drove to the workshop, taking care to park as close to a couple of the expensive high performance cars in the yard as I could. I pointed out the problem to the manager and said it would be a good thing if he was to fix the problem immediately with the hose that he had on back order. He couldn’t and offered to fix it that afternoon, It was their last workday prior to the their ten day break and I said that I doubted their ability to rectify the problem satisfactorily in that time and that I would do it myself properly (I was a plumber in a previous life before chronic back issues deemed that I should not really lift heavy things and crawl around in small tight spaces-including underneath Patrols!)
I took it home, went to Oakleigh on my trusty motorcycle yet again to buy a second length of “unavailable” fuel filler hose and fixed the issue for once and for all. The main problem appeared to be that in trying to tighten the hose clamps around the hardened old hose, the worm drives had been stripped. What craftsmanship! What levels of competence!

The day after Christmas, I parked the patrol under the carport and thought that I would check out the settings they had decided on with their expertise and fine machinery that they have available; Idle seemed Ok, if a little high (around 750rpm in Drive. Dwell was right on the limit for the petrol version at least at 40 deg. Timing was set at 4deg AFTER tdc! I advance this somewhat to around 10deg. Btdc and checked the mechanical advance it seems OK and then the vacuum advance- nothing, put the hose back on and sucked and blew and all I got was noise through the diaphragm indicating a stuffed diaphragm and a would be vacuum leak.

So that’s why I’ve given up on going to the lakes this Christmas/new year opting instead to search high and low for a replacement unit. When I get one, I’ll tune the engine myself, with the help of a couple of mates and some beer. Besides, the lakes are probably full of blue green algae!
I hope that I don’t get the final invoice for the plugs and leads from the specialists who, for the present at least, shall remain nameless.
Regards
David

[Bigrig]

Hello all
Thanks to Patch for the info on compensating for the lack of vac advance.

Now here’s a Christmas story for those with nothing better to do with their time:
I've spent the morning getting around all the local wreckers looking for a replacement unit with no luck, Nissan genuine? Told that there are none in the country and it would be >two weeks and "genuinely” expensive of course.
Online place in Sydney (Nardek) shows one suitable for the tb42 on their website (It says it's for a ford maverick TB42, but they don't fool me!) but my attempts to contact them have come to nought so far, due no doubt, to the Christmas/new year shutdown.

More on my Patrol in general: It's an Auto 88 GQ Gas/Petrol TB42 with 340,000km used primarily as a tow hack, I looked at replacing it as it was getting tired, reasonable on gas but a disaster on petrol; didn't take too long to figure that I wasn't going to get a whole lot more to replace it unless I spent a whole lot more money.

I figured to spend some money in a few choice areas. I got the suspension checked, not too bad, and needed a few bushes replaced, 4 new shockers, new tyres that fixed up the ride a fair bit. I took the rig to a "LPG performance specialist" who was recommended by a couple of local businesses I dealt with, This has turned out to be a mistake, but I won't name and shame them just yet, that will depend on whether or not I get invoiced for the last lot of work they carried out! Let's just say that they are undoubtedly excellent at building and tuning high performance engines but in hindsight, I think the patrol has been a bit low tech for some of their skilled artisans.
Started off with a tune in which they replaced points only, and checked the whole thing over as I asked, noted a few issues: Carbie U/S- didn't need to be Einstein on that one I guess, Tail pipe restricted-OK, it was flat on one side, They agreed that the fuel filler hose was hard and kinked which made a petrol fill a very tedious affair at the pump, Gas tank needed re certification- No worries. Gas hose and a few fuel hoses needed replacing. I gave them the ok to do the work. They had the car for a week to get the tailpipe and carbie rebuilt, replace some hoses, fuel filter, forgot to check the gas tank this time around and inserted a metal pipe elbow into the fuel filler hose to straighten out the kink. I took it home. Next day; I switched from petrol to gas, and then back to petrol only to find I couldn’t get it to run on petrol! Took it back and they fitted me up with a new petrol pump, and petrol line cut off solenoid switch and replaced a dirty old fuel filter that was found down the back of the petrol tank. I took it home and still had issues switching and running it on petrol so I took it back again and they traced it to the petrol/gas switch, which they replaced. The old one was definitely stuffed, and this seemed to fix the issue.
I took it back again a couple of days later when I pulled the filler hose away from the tank whilst trying to remove the right rear shocker, It was on by about 15mm and the hose clamp had missed the metal spigot altogether. Luckily, at this stage, I hadn’t yet attempted to fill the petrol tank.
They told me it had only been a temporary fix as they had a fuel filler hose on back order due to its unavailability. Unfortunately, they must have forgotten to tell me when I paid them for this portion of the work. I asked around and found a place in Oakleigh that sold Gates Hoses etc. I bought a length and took it down to them. They installed it, opting to use a short portion of the old hose (instead of their clear plastic hose which carried no labels and looked similar to that to be found at Bunnings!) they used a joiner as the 90cm length wasn’t quite long enough to get between the coil and shocker comfortably. I was asked to inspect it and it looked OK and I said so.

A couple of days later, I was driving when the engine started misfiring on gas, I went to petrol, same again, I postponed my plans for the day and went to the workshop again. I waited there for a few hours whilst they played with it, they recommended a new set of plugs, leads and condenser. Funny thing, I seem to remember back in the olden days of home tuning with beer on a Saturday that you always renewed the condenser if changing the points, but they never did this at the tune up they did only a couple of weeks and some 500 KM before!
I agreed that the incumbent parts were at least a couple of years old and that as it was nearing the Christmas break, I did want the car to be reliable for when I used it to tow the boat to the Gippsland Lakes, So yes I said, replace the parts and I hoped they would tune it with their finest equipment.

They played, they test drove and played some more; drove it again and told me it seemed fine now; I should drive it awhile and bring it back for a final tune after around 1000Kms. I drove it home, it seemed sluggish, and after I clipped in the new leads that were flopping all around the engine bay I drove it around a bit over the next day or so and seemed to be going through more LPG than normal.
I thought it would be a good time to put a bit of cheap petrol in the tank as it was the Wednesday before Christmas so I took it to the servo. The fuel poured in the filler perfectly, no more clicking off, I checked underneath to see a steadily forming pool of petrol on the concrete; it was coming from the joint where the old hose met the joiner pipe. I paid for the petrol and drove to the workshop, taking care to park as close to a couple of the expensive high performance cars in the yard as I could. I pointed out the problem to the manager and said it would be a good thing if he was to fix the problem immediately with the hose that he had on back order. He couldn’t and offered to fix it that afternoon, It was their last workday prior to the their ten day break and I said that I doubted their ability to rectify the problem satisfactorily in that time and that I would do it myself properly (I was a plumber in a previous life before chronic back issues deemed that I should not really lift heavy things and crawl around in small tight spaces-including underneath Patrols!)
I took it home, went to Oakleigh on my trusty motorcycle yet again to buy a second length of “unavailable” fuel filler hose and fixed the issue for once and for all. The main problem appeared to be that in trying to tighten the hose clamps around the hardened old hose, the worm drives had been stripped. What craftsmanship! What levels of competence!

The day after Christmas, I parked the patrol under the carport and thought that I would check out the settings they had decided on with their expertise and fine machinery that they have available; Idle seemed Ok, if a little high (around 750rpm in Drive. Dwell was right on the limit for the petrol version at least at 40 deg. Timing was set at 4deg AFTER tdc! I advance this somewhat to around 10deg. Btdc and checked the mechanical advance it seems OK and then the vacuum advance- nothing, put the hose back on and sucked and blew and all I got was noise through the diaphragm indicating a stuffed diaphragm and a would be vacuum leak.

So that’s why I’ve given up on going to the lakes this Christmas/new year opting instead to search high and low for a replacement unit. When I get one, I’ll tune the engine myself, with the help of a couple of mates and some beer. Besides, the lakes are probably full of blue green algae!
I hope that I don’t get the final invoice for the plugs and leads from the specialists who, for the present at least, shall remain nameless.
Regards
David

What a saga mate!!! Bloody shoddy workmanship as you suggest, but a bit rude also considering they would have no doubt known of other issues if they are even half worth their salt.

Best of luck sorting a replacement and keep us up to date!!

[patch697]

Thats a very saddening story Dave that I've heard way to often im my line of work & an extremely bitter pill to swallow for those who've been taken by such dreadful trades practices.

I have beaten you to the post on those dizzies of Chester's but I am happy to share the spoils mate so PM me your contact details & I'll be in touch.

[DavidJohn]

Thanks all for your advice on this subject,
Heres some good news and it's great to be able to inform others of somebody's excellent service, as opposed to the recently experienced opposite:
Last monday I emailed Nardek in Sydney at nine am. enquiring about availability and cost of their NVA-408 replacement vac advance unit shown on their online PDF catalogue (for a Maverick TB42 only - distributor no. the same as mine). At twenty past nine I received an email stating they had it in stock at $79.00 including P&H to my place in Metropolitan Melb. I downloaded their order form, filled it out and emailed it back by ten o'clock. Item delivered Aussie post Express the next day! How good is that? It appeared to be packaged as a "genuine Mitsubishi part"with the Nardek no. handwritten on the box. Not bad when Nissan dealers can't get them for two weeks as there "aren't any in the country" and a "genuine" Nissan part would have been well over $200.00. (Dont let Nardek know)
Anyhow, its in and the engine runs smoothly once again.
Regards
David

[patch697]

Thanks all for your advice on this subject,
Heres some good news and it's great to be able to inform others of somebody's excellent service, as opposed to the recently experienced opposite:
Last monday I emailed Nardek in Sydney at nine am. enquiring about availability and cost of their NVA-408 replacement vac advance unit shown on their online PDF catalogue (for a Maverick TB42 only - distributor no. the same as mine). At twenty past nine I received an email stating they had it in stock at $79.00 including P&H to my place in Metropolitan Melb. I downloaded their order form, filled it out and emailed it back by ten o'clock. Item delivered Aussie post Express the next day! How good is that? It appeared to be packaged as a "genuine Mitsubishi part"with the Nardek no. handwritten on the box. Not bad when Nissan dealers can't get them for two weeks as there "aren't any in the country" and a "genuine" Nissan part would have been well over $200.00. (Dont let Nardek know)
Anyhow, its in and the engine runs smoothly once again.
Regards
David

Damn..... I got a whole dizzy sitting here with your name on it for less then you paid for that one part.

Oh well, at least your all sorted & your happy with what you got.

[jc58nc]

On Friday 13th I also have been onto NARDEK to purchase a Vacuum Advance for the distributor I have rebuilt for my GQ and was told i purchased there last one. Still the same price ($79) including delivery.