Another TB42 to TD42 Conversion

[Pezzer]

The special timing tool what does it look like and why 0.76mm @TDC

[carsurgeons]

Hi, hows the conversion going? I'm just starting the same sort of project except i bought the whole car and am giing from tb42 manual on gas to turbo td42 automatic.
Is yours up and running yet or still going?
It sounds like it will be a good thing when it's all finished.
Like you i'm sick of spending more time at the petrol station than home.

[Andyh]

Hi Pezzer,

Its just a normal clock gauge but a special holding tool is needed to place it in the rear of the diesel pump... If you have a look at this : https://www.youtube.com/watch?v=OI_i...ature=youtu.be you will see what i mean.
0.76mm was used by me as the specifications were stated as 0.70mm @TDC for the standard NA system, as i am running a turbo i advanced this to 0.76mm to compensate for the extra air in the mixture being produced by the turbo, this was a guess at 0.76mm but i had been informed by others that this is the magic number that ppl are finding works well.

Cheers

[Andyh]

Thanks for the interest Carsurgeons, not quite there yet mate but is certainly getting close to me ripping out the BBQ system and installing a proper motor.

Update time...

My first Setback...
Ok so having previously purchased my DTS manifold and having got my Turbo I have encountered a massive problem. The dump pipe on the turbo catches on the water pressure relief valve on the side of the block with will not allow me to fit the turbo and manifold… DAM ! ..



Ok so why won’t this fit …. The Turbo is not the issue as it has the same outlet as the standard HT18, and the turbo is a TD05 which is identical in size to the Garret, Mitsubishi and other brands… The difference has to be the manifold flange location / angle…

Having looked at my setup and that of a standard manifold my fears are realised, the DTS manifold sits the turbo 40mm further forward than that of the standard Manifold and thus when I put the dump pipe on the rear of the turbo the water pressure relief valve fouls the dump preventing it being fitted…

I contacted MTQ at Dandenong and they said to bring the entire setup down and they would have a look at it and see if I had any options regarding dump pipe spacers etc, but alas my manifold is not useable with this configuration dump pipe…. Now I have to return my DTS manifold for a refund and go with the standard Nissan Manifold or the original plan of a Radius Fabrications manifold.

I think I am going with the standard Manifold option and I don’t want to risk the same problems with a manifold from QLD, the DTS manifold wasn’t so much of a problem as I only live just down the road to MTQ so I could return it without any postage getting involved, but if the same happened with the RADFAB one I would have to arrange freight etc. and it’s a headache I don’t need..

I contacted Patrolapart in Lillydale and they can supply me a brand new Nissan Original T3 manifold for a good price but not until the end of the month as they have them on back order from Japan… Bugger !!

Bottom line is I am spewing I cant use the DTS manifold as it has an awesome reputation and would have been much more efficient than the Nissan one. But hey it is what it is so I will just suck it up and move on.

20150413_155531.jpg 20150413_155516.jpg

[carsurgeons]

hey mate great pics. Bugger about the manifold. Can't wait to hear it running.My conversion is just about to start,and i will use a lot of your useful information So thanks for all the info.

[Andyh]

All good mate,

If you have any questions or if i can help feel free to drop me a PM and if i can help i will...
Having said that, my journey is not over yet.. lol i will breath a sigh of relief once its in running and passed VASS (Victorian Mod plate)

[carsurgeons]

my mate just had a ford transit mod plated with a rb30 skyline motor and box and also a turbo , what a job , but that was in qld. i think it will need some brake upgrades. how is yours going?

[Andyh]

Thanks mate.

Foundation brakes are the same on the TB42E and TD42T the booster pump is the only difference as the TD42T does not produce engine vacuum, hence it has a vac pump on the timing gear (Mine is the newer type that doesn't have the pump on the alternator).

The only thing i can think of is that i may need a larger Vac canister or an additional one to hold more volume but will see how i go..

Mine is stalled at the moment due to no time to work on it and having no exhaust manifold at the moment. But i have ordered a few more bits that should arrive in the next few days.

[Alitis007]

Thanks for the interest Carsurgeons, not quite there yet mate but is certainly getting close to me ripping out the BBQ system and installing a proper motor. Update time... My first Setback... Ok so having previously purchased my DTS manifold and having got my Turbo I have encountered a massive problem. The dump pipe on the turbo catches on the water pressure relief valve on the side of the block with will not allow me to fit the turbo and manifold... DAM ! .. Ok so why won't this fit .... The Turbo is not the issue as it has the same outlet as the standard HT18, and the turbo is a TD05 which is identical in size to the Garret, Mitsubishi and other brands... The difference has to be the manifold flange location / angle... Having looked at my setup and that of a standard manifold my fears are realised, the DTS manifold sits the turbo 40mm further forward than that of the standard Manifold and thus when I put the dump pipe on the rear of the turbo the water pressure relief valve fouls the dump preventing it being fitted... I contacted MTQ at Dandenong and they said to bring the entire setup down and they would have a look at it and see if I had any options regarding dump pipe spacers etc, but alas my manifold is not useable with this configuration dump pipe.... Now I have to return my DTS manifold for a refund and go with the standard Nissan Manifold or the original plan of a Radius Fabrications manifold. I think I am going with the standard Manifold option and I don't want to risk the same problems with a manifold from QLD, the DTS manifold wasn't so much of a problem as I on live just down the road to MTQ so I could return it without any postage getting involved, but if the same happened with the RADFAB one I would have to arrange freight etc. and it's a headache I don't need.. I contacted Patrolapart in Lillydale and they can supply me a brand new Nissan Original T3 manifold for a good price but not until the end of the month as they have them on back order from Japan... Bugger !! Bottom line is I am spewing I cant use the DTS manifold as it has an awesome reputation and would have been much more efficient than the Nissan one. But hey it is what it is so I will just suck it up and move on. <img src="http://www.nissanpatrol.com.au/forums/attachment.php?attachmentid=57240"/> <img src="http://www.nissanpatrol.com.au/forums/attachment.php?attachmentid=57241"/>

Just a silly question mate but why is there a plate between the manifold and the turbo flange and also why not make your own dump pipe?? It'll be the easiest option i rekon.

[Andyh]

The spacer is there to prevent the turbine housing coming into contact with the manifold outlet, as i am using a bigger than standard turbo housing.
The dump pipe i wanted to retain the original configuration so that if i cant pass VASS with my turbo i can swap it over for a crappy HT18 turbo to get my blue plate.

I could have fabricated a vband type turbo dump pipe and it would have fitted the DTS manifold no problem, i just decided to go a different way on the dump pipe.

Cheers