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another TD42 turbo oil feed question

Tech Talk for Nissan owners.

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another TD42 turbo oil feed question

Post by Mark2 »

I'm in the process of fitting a 2nd hand turbo kit to my TD42. The donor engine used an oil cooler with a sandwich fitting under one of the oil filters. This has fittings which were used for the turbo oil feed and the oil cooler lines.

I'm ditching the oil cooler and the sandwich plate for the time being and want to take the turbo oil feed from another location closer to the turbo.

Searching previous posts, most people seem to take the oil feed from a fitting near the passenger engine mount. My question is, is this the same fitting used for the alternator feed - if so, I presume a T fitting is needed?
Or is there another fitting in the vicinity?
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Re: another TD42 turbo oil feed question

Post by thomo.in.a.gq »

Mark2 wrote:Searching previous posts, most people seem to take the oil feed from a fitting near the passenger engine mount. My question is, is this the same fitting used for the alternator feed - if so, I presume a T fitting is needed?
Correct, pyrtec etc cary the bits your after.
GQ Patrol with a few bits and pieces.
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Post by monstr »

On a GQ there is a oil feed from memory in between the passengers engine mount i think its about an 6 or 8mm hex key thats the best one to feed a turbo its a feed direct from a oil gallery ..Cheers
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Post by Mark2 »

monstr wrote:On a GQ there is a oil feed from memory in between the passengers engine mount i think its about an 6 or 8mm hex key thats the best one to feed a turbo its a feed direct from a oil gallery ..Cheers
Thanks - had a look this morning and found the hex plug.

Looks like the turbo might need rebuilding theres a fair bit of side play and it kind of binds up if you push the shaft sideways and try to turn it :cry:
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Post by beretta »

Bummer mate, but better to work it out now than have it spitting bits of shite into your nice motor!
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Post by Mark2 »

Spoke to a diesel place this morning - they reckon once its spinning and with a film of oil on the bearings it should basically self center and so should be right to put back on ?? I
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mav
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some side movement

Post by mav »

some side movement is ok but end float is no good does it have any?
see ya mav
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Post by love ke70 »

a bush bearing turbo will always have a bit of movement, it aint fucked til its scrapin the housing coming on boost :D :finger:
97 GQ patrol coilcab. TD42, safari turbo kit with fiddled turbo, D-GAS kit. dyno results to come...
4inch lift, king springs, efs and procomp shocks
315/70R16 cooper ST's
found fuel economy...
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Post by Mark2 »

No end float at all, but you can make it scrape a little bit if you push sideways fairly firmly and turn it. It feels really smooth to turn.
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Post by love ke70 »

thats because there is no oil pressure in the bearing.
i wouldnt be pushing too hard on your turbine...

at the end of the day, they usually give you plenty of notice before destroying themselves.

the only i had that didnt (i went through 5 turbos on my go fast car) launched the exhaust wheel into my muffler, stupid ceramic wheels...

if your really worried, take it to a turbo place, get it checked over, then fit it.

cheers, andrew
97 GQ patrol coilcab. TD42, safari turbo kit with fiddled turbo, D-GAS kit. dyno results to come...
4inch lift, king springs, efs and procomp shocks
315/70R16 cooper ST's
found fuel economy...
Posts: 569
Joined: Sun Jan 11, 2004 11:36 am
Location: Sunshine Coast QLD

Post by Mark2 »

Well, I ended up putting the turbo one as it is/was. Took it for the first test drive tonight - its awesome! I've never had a turboed TD42 before so dont know what to compare it to, but the difference is amazing. Its possibly a little worse under about 1500 rpm but after that - wow! Speeding tickets are going to be a distinct possibility if I'm not careful.

The turbo is very quite so hopefully the play wasnt an issue.
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Post by love ke70 »

if it was rubbing the housing, you would know about it, sounds like all is good :)
97 GQ patrol coilcab. TD42, safari turbo kit with fiddled turbo, D-GAS kit. dyno results to come...
4inch lift, king springs, efs and procomp shocks
315/70R16 cooper ST's
found fuel economy...
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Location: Central Victoria

Post by coxy321 »

So Mark2, did you just pick up a second hand kit and bang it on? How many kms has your TD42 got on it? Can i ask how much you paid for the kit?

Coxy
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Post by Mark2 »

[quote="coxy321"]So Mark2, did you just pick up a second hand kit and bang it on? How many kms has your TD42 got on it? Can i ask how much you paid for the kit?

Coxy[/quote

Its a bit complicated because the kit came with a parts vehicle - what I get for the left overs will determine what it owes me. Thats not much help to you....

The engine has 438,000 km on it. Compressions are good and all seems fine.
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