15th July 2008, 11:56 PM
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#1 (permalink) |
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GTR Register Member
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Location: Kiev, Ukraine
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Engine swap?
Hi guys (and girls),
I've just swapped an engine on now my 1995 GT-R and have a big question. Actually two of them: 1) What the correct name of the box with nuts and bolts mounted on the left side of the engine. Is it called "front differential" or "distribution box"? 2) Guys who had sold me the whole motor told me I should use this original "front box" (no chance, my one was running w/o oil by previous owner so close to does not exist) I have and not the one they have sold me with the motor as their one has different "trasnferring numbers" so I'll ruin my both front and rear diffs with it. How can it be? Sorry for probably stupid questions but this is the only R33 GT-R left in my country so I don't know whom to ask................... Thank you! Anton |
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20th July 2008, 09:19 AM
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Quote:
 if so, yes it is the front differential, which is mounted in the sump casting. 2) what was running w/o oil, the engine or the front differential? (they have separate oil systems) If you mean the differential, count the teeth on the two differentials and compare them. R32 & R33 are the same, R34 was different. Ian
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21st July 2008, 12:07 AM
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#3 (permalink) |
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1) So right name is "front differential". Thank you for confirming
 2) Front differential was running w/o any oil... There was metal rubbish inside it so I've replaced it with the one I've got with my new engine. Cannot calculate number of teeth as I've installed new one already but I'm running for around 600 km and all is fine. Had it break already if it was wrong one? |
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21st July 2008, 12:06 PM
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Quote:
is the 4wd running / working properly? (does the gauge move when you lose rear traction? any noises?
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21st July 2008, 02:37 PM
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Yes, when accelerating hard and driving over pies of sand on the tarmac gauge moves and I don't hear any extra noise(s). How long do you think I can drive this way to be 100% confident I'm OK?
It's around 500 km already after engine swap...Quote:
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21st July 2008, 03:34 PM
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I was told recently the gauge is a calculated value not actual measured.
If the people who sold you the box said it has a different gear ratio, and you put it in your car, you have killed your transfer case. If it actually has the same gear ratios, then you are fine.
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21st July 2008, 03:52 PM
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I understand this. I'd like to know how can I be 100% sure in any of this cases (working or NOT working) w/o calculating the teeth on the gears.
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21st July 2008, 10:25 PM
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Go around a corner and get the ass out with a little countersteering, lay into the throttle and see if you feel the front wheels pull you in line.
Alternately put it on a 4wd dyno and measure torque at each axle.
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21st July 2008, 10:38 PM
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Understood! Will do and update. Thank you!
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