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99 gu. tb45 out td42 in.

Tech Talk for Nissan owners.

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Posts: 485
Joined: Wed May 05, 2004 8:04 am
Location: parramatta

99 gu. tb45 out td42 in.

Post by viperguy »

hey there. has any one done the above conversion? looking at removing the tb45 and manual gearbox and running a td42 and auto from a 91 gq high roof. main queries are with the wiring. do i need a diesel loom or can i cut and shut what exists and make suit? i know the auto wil need its computer/controler. just after some ideas tips so i can do some number crunching. cheers
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Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Post by PGS 4WD »

TD42 only needs power at the pump to run. The tacho won't work but it can be fixed, a lot of the Nissan loom is generic but you will need to compare wiring diagrams for glow plugs, glow plug timer etc. The bell housing is different, the starter motor bolt pattern, I redrilled a TB45 bellhousing as the castings are there. Radiator outlets on opposite sides.
I'd have to ask why do it??

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
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Posts: 485
Joined: Wed May 05, 2004 8:04 am
Location: parramatta

Post by viperguy »

thanks for your reply pgs always like reading ur comments. contemplating doin it because i want a gu and one has popped up that i can get for peanuts but its tb45 where i want diesel. i have the 91 gq td42 factory auto sittin in the yard and i just thinking if its feasible.
Posts: 1258
Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Post by PGS 4WD »

I'm nearly finished my GU, was a 2.8, bought with a blown motor, I've put a td42 in and am just saving for the turbo.

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
Posts: 21
Joined: Wed May 23, 2007 12:45 pm
Location: perth

Post by gu-meggs »

pgs i know its slightly off topic but how much do you think the conversion has cost all up and were there any major issues im keen on doing this myself.
Posts: 1258
Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Post by PGS 4WD »

I've built an engine, ugraded to GU rods and Pistons with HPC coatings, fitted a cam, ported the head, new 4-terrain clutch, roller turbo (coming) intercooler, Modded pump and injectors, ported head, valve springs. I owe some favours for the gearbox, have made an extractor style exhaust manifold and custom intake manifold, plus other stuff. It's cost me, pulling in lots of favours, 15k so far. There is no labour in that of course.
The second hand engine to rebuild was $1500.

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
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