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Racor do a good separator filter. Leave the standard one in place and run the racor before it. They can come with the switch to warn you when the water level is up there. Also if you havent already run a lift pump. A carter 4600 or 4601. Down close to the tank.
Rossco, I run a large dia. CAV wire mesh filter fitted with a 25 micron strainer mesh. This is on the outlet of the main tank - 147L one. There is a small RYCO in line filter between the aux belly tank and the main tank - I have a standard size CAV 296 filter unit ready to replace this when I get a chance - the little one does the job as it does not see much volume. The little RYCO is before the transfer pump in order to protect it. The transfer pump is a relative cheapie off ebay for circa $50 and Im carry a spare.
The Chev is fitted with an in-line lift pump before the injector pump, located approx under the drivers seat, which is a bit too far away from the fuel tanks in my view. The lift pump is protected with a small RYCO in line filter like the transfer pump in the rear. From the discharge of the lift pump, fuel gets finally filtered and water separated via a CAV 296 single filter unit with glass bowl. I carry a spare lift pump and spare inline RYCO units at all times.
I initially installed a CAV296 unit in the position of the 25micron strainer set, however the lift pump could not pull thru it. The lift pump is the one that BD supply and is rated at 75LPM, 16PSI outlet pressure, but be warned its entirely possible to over pre-filter and create too much suction loss from tank to injector pump - I know because my initial system failed - was starving, so the strainer is now in place to catch the debris and any globs. I did find also that the discharge line had a large constriction of muddy build-up from 20 years use, right on a sharpish metal tube bend. Flow from the second tand was so dismal the engine would stall when running just on that tank, so I converted the fuel system to a sub tank transfer to main and resolved it.
When I did this work I dumped all the fuel, and flushed both tanks out with 20L fresh diesel. There was a considerable amount of dirt and sludge that came out. I further flushed with 10L of kero, then let it all drain, reassembled with final system above and no problems since. I change the CAV fuel filters every 5000klm and the small in-line RYCO units after 2 x 4WD trips - simply good insurance.
I don't have an electrical switch indicator - simply not avail in this model. Whilst I am yet to get a belly of crook fuel, I think the style recommended by @nissannewby is good as it will give you the warning in advance of trouble and when you are sitting in the car and cruising along - mine needs to be checked visually and this is a weakness as I will find out about water probably as the car splutters to a stop. I think I would try drawing thru the Racor unit and see if the lift pump can handle the suction loss. If yes, then you have max protection for lift pump and system. If not, I would install a small free flowing in-line Ryco before the lift pump, and pump thru the Racor unit. You just need to keep an eye on the contamination build-up in the small RYCO as the filtration area is small.
Cheers guys that's awesome, certainly some food for thought. So guessing lift pump is needed as extra filtration means more restriction / reduction in flow. Have a little ryco in line between sub and main and after main at the mo. Racor does look good will look into these a bit more like the idea of a warning when you need it.
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I think the ryco is a short term/duration filter solution, not a lot of filter area and certainly no capability to separate water from fuel contamination. If you change the ryco frequently it is going to work, but I use them as sacrificial elements to take the load of the finer filters/more expensive filters, and yes they have minimal pressure drop because their filtration level is coarse.
As I said in the earlier post, you would need to suck it and see if the lift pump can draw thru the additional filter or if it needs to be after the pump - the lift pump should be able to provide the pressure boost to the main injector pump, however you would need to validate that - I dont have the specs on the pump recommended to you, but pumps 'typically' perform better with filters on the discharge side and strainers on the inlet side, unless the filter is correctly sized for the duty and the pressure drop. Either way you need to consider protection of the lift pump as well.
Having the indication feedback is the winning criteria I think. I would consider a direct replacement of the factory setup myself with the Racor if the filtration level is on par rather than adding the additional unit in line. I don't know the root reason why the lift pump is being recommended when the engine has run for 400K+ klm so far and note needed it?
Bit of an update but finally picked up the old GQ the other day from Cornells. Tanks nice and clean and glad to get the sub one professionally cleaned and sealed as was rusty from the days it was a belly tank on dual fuel and probably sat with a dribble of petrol in it most its life, so guess that's a positive to come out of this lol. Also got the injectors tested, were spraying ok but a fair difference in opening pressure so they're sorted now too.
Was very good to drive the thing again, they are an awesome old bus although still the issue of no power down low seems to be starting ok but.
Filled up the main and noticed the bloody thing leaking when I got back so will get them to have a look at that when i get this pump on and back for a tune, some things are never easy lol! . . .
http://www.nissanpatrol.com.au/forum...018/10/234.jpg
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Picked up the old bannga from Cornells and far out pretty happy lol. Fair increase in power & torque, more than i expected as i thought they were going to err well on the safe side of things! Anyway it's under 700nm which I'm happy with safety wise (just!) definitely don't want to go any further but has more potential to give. Low down pull is a Maaaaaasive increase to what it was and has erased any doubts I had that that was the way it was and was normal, response and pull from idle is frick'n awesome! ! Anyway just been driving it like a grandma so far but it's sooooo much more driveable now, can just cruise and it munches up hills with ease. So far egts and temp been very low. . .http://www.nissanpatrol.com.au/forum...018/11/183.jpg
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That is an awesome result Rossco and I am so glad you are over those issues now! It definitely was not right driving it before and it would be a totally different beast now!
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Good outcome Rossco, did they resolve the fuel tank leak or have you sorted that out?
Nice Rossco. Sounds like she's running just right now.
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Thats a great result mate. What did they have tonsay about it? Where they familiar with the BW? Is that comparison run your run on day one using the other pump? That is nearlly embarassing if thats the best old mate could get from his own pump!!!
Interesting. We should have a chat mate
Yeah they fixed that was the sender. Filled it up again and all good.Quote:
Originally Posted by PeeBee
Yep comparison was from drive in on old pump, thought it was putting out a little more than that actually. If it weren't for issues i would have been more than happy with it, once it was up & running was absolutely great but down low hopeless and starting issues. Many occasions pulled out into a small gap in traffic and would feel like it was stopped dead then would go once built up a bit of speed, which is not ideal lol.Quote:
Originally Posted by MudRunnerTD
Think they were pretty impressed, said it was one of the highest powered TDs they'd done, not sure they had much to do with BWs on TDs before. Certainly credit to the Queensland boys and AB for such awesome R&D pretty easy for us to reap the benefits now lol. Been very happy with Cornells too pretty impressive set up over there, clean as a whistle place. .
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Yeah you look like you get a fair bit more earlier than i do actually. I will take a pic of mine and post it here to compareQuote:
Originally Posted by Rossco
See aboveQuote:
Originally Posted by Rossco
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Yeah wow. If those speeds are correct then regardless of the tacho your peaking at 75 to 80kms/h and im just winding up to peak at 90! That is nearly a gear!! Wow
At 70kmh im producing about 100kw and you have 140kw already.
At 80kmh your on boil at 165kw and im just thinking about it at 140kw! I dont see 165kw to about 105kmh. Jesus! Thats a big difference.
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Thats got my attention mate. Kinda lagging a little by comparison. And 120 extra newton metres.
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What size tyres and diff ratios are you running mate?
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Rosscos on 35" and 4.6's mate.
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Hmmm ok so the 35 will suck a little and the 4.6s will make a fair bit of difference id think to that power curve?Quote:
Originally Posted by AB
Absolutely but its both and give and take. would probably equate to 31-33" on 4.3's maybe?Quote:
Originally Posted by MudRunnerTD
Im feeling a little better.... 😎Quote:
Originally Posted by AB
Yeah would be equal to 33s on 4.3s and 31s on 4.1sQuote:
Originally Posted by AB
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Certainly doesn't make up the difference though mate, not even close.Quote:
Originally Posted by MudRunnerTD
Like we discussed, if you are happy with what you've got then leave it but it certainly shows what you can do.
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Yep if anything Rosscos should be lacking more with the tyres V ratios.
Definitely feels very strong in the bottom end and does love to pull around the 2k mark and is quite different to before, kindo used to it having nothing then coming in form 1500 ish. Even in neutral can tell the difference when you give it a little rev sounds pretty beastly now. Need to drive it a bit more to get more of a feel for it. Interesting to see the difference between mine & Daz's seeing their such similar setups, sounds like his loves pulling in the top end where as mine seems happier in the bottom wonder if that is down to tuning? ? Either way both setups sounds good, proof is in the pudding if it's good to drive happy days. .
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Id have thought that his rev range at 75kmh would be similar to mine at 85kmh. So the missing link in comparing the readouts is that mine doesnt show RPM which would really show the differential.Quote:
Originally Posted by AB
Its all irrelevant on the dyno. It has corrections in place for the calculation. We have been seeing this quite a bit and you can see it on ABs setup. A silvertop cam will bring on everything earlier over the t/ti cam.Quote:
Originally Posted by MudRunnerTD
Without actually worrying about what the numbers say the silvertop cam will roughly do everything aroind 400rpm earlier.
Also dont get to caught up in the differences between the dyno printouts. Dynos are just tools that we use for diagnostics and comparison. Trying to compare them to each other is very difficult.
This is the closest thing I have to be able to show you the difference. These 2 patrols have a very similar setup. Both bw turbos, both ruben 12mm, both front mounts.
Laying them over each other like this corrects them as if they were both done in similar conditions. Even though these 2 vehicles were done on the same dyno 1 after the other. The main difference one is a silvertop one is a td42t. Curves are basically the same shape but the silvertop does everything earlier. Peak numbers are similar.
Attachment 77022
Interesting. Thats basically the difference i see between Roasco and mine.Quote:
Originally Posted by nissannewby
I have copied this convo from Roascos dynos onwards over to the turbo thread as its interesting and adds value there.
I assume they do corrections on weight of vehicle too and even the weight of when they torque the car down to the rollers with straps, etc?Quote:
Originally Posted by nissannewby
So Darren and Rosscos cars are completely different with Rosscos being shiploads lighter and from different tuners, understand they probably calculate all that but thats only accurate with a guess of what the operator puts the data in as they both have shiploads of different accessories added and fuel, drawers, bars, winches, etc or is that minor in results?
I'll have to drag all mine out and overlay them, would be interested to see between my old silver and the Td42TI.
Yeah I wish you both had RPM read outs...Quote:
Originally Posted by MudRunnerTD
Quote:
Originally Posted by AB
I have your readouts. You have a difference of pretty much the same as the ones I posted above and the same as darrens vs rossco. While there are subtle differences between the td engines the one thing that seemingly makes that difference is the cam. We have quite a few results now proving this.
Gave the thing a service and replaced brake pads with genuine ones and brakes definitely feel better, pretty happy with them now all things considered. Knew the rears were getting low but crickey not much left on one pad lol. .
http://www.nissanpatrol.com.au/forum...018/12/376.jpg
Just need to replace both tie rod ends as they have a bit of slop and dreaded death wobbles have been rearing their head for a bit and pumping it full of grease isn't quite cutting it anymore.
Noticed cold starting not entirely perfect still, bit of white smoke and little rough, don't know what's going on there, apart from that bloody good and better than before, hot starting is perfect now.
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Yeah I went from Bendix 4wd pads to OEM and its way better... As for your cold starts, maybe you have fuel leaking back via the filter head through the primer pump. Have you got one of those brake line clamps you can use on the fuel line just after the filter head? If you clamp it off and then leave it over night and then remove it and see. This may help with the outcome.Quote:
Originally Posted by Rossco
Been giving the old girl a bit of love this week just fixing lots of little nigling things that have been annoying. . . Fixed indicator light in cluster that wasn't working, just needed contacts cleaned, new washer motors- squirts with power now and bolted down tablet holder to dash after the crazy corugations on useless loop destroyed that lol . . . Was a fun job had to sticky tape the nuts too a spanner to get them on lol. . Decided to put a catch can on it too went with a HPD one have to say it's a very nice kit, if my filter was still on the original side would have been a bolt in kit but made a bracket and put it on other side and fits nice. Ready to enjoy i reckon . . .http://www.nissanpatrol.com.au/forum...018/12/401.jpg
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Gave the old banger some attention today. . For some strange reason the stereo just s#!t itself and was dead as a doornail so replaced it with another pioneer single din unit. Pretty easy all just plugged back in and sounds better than the old one not that ther old one was bad. . Gave the inside a good clean as haven't done this since cape jaffa and sand everywhere lol. .
Got a bit excited the other day and ordered some snazzy OME BP51's for it, so had to swing over to patrolapart to pick up some extended bump stops as they are long travel ones. Pretty keen to see how these bad boys go just quietly, everything everyone says about them is pretty positive.
http://www.nissanpatrol.com.au/forum.../2019/03/8.jpg
http://www.nissanpatrol.com.au/forum.../2019/03/9.jpg
Not much to them without a CD player! The new one is good it's only half the depth as is the GME so makes it a bit less tight at the back. .
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You will love the bp51s !!!
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Look forward to the report Rossco, unsure if I want to go that way or stick with the hydraulic Koni's.
Very very keen to hear your reports on the shockies mate. Planning on getting a set asap.
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Ooow BP’s very snazzy mate, keen to see how they perform too!!!
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