Engine Removal And Refit - R34 Gtr

[GTRNUR]

Im about to fit my new engine to my R34 GTR and have been researching the best approach to go about doing it.

First off, I will be having a workshop do all the main spanner work. The workshop is well eqiuipped, the car will be on a hoist and an engine trolly wil be available. The I'll be stripping out the engine bay and removing the radiator, front bar and splitter, and then trailing the car to the workshop.

Based on my searches it is possible to remove and refit an engine by lifting the engine out the top of the car, and by doing it this way you dont have to mess with the hydraulic lines for the clutch and AWD system etc.

But, I also found a mentioning that engines with sump extensions such as the Trust extension can be a pain to get in and out, as they will make contact with the cross member. ie: there isnt enough room to move. This could be an issue for me as I have the high octane extension on my sump which is just as tall as the trust, and wider.

Also, RB30 based engines going into gtrs being a little taller can also make it a little more difficult to fit... so ive read.

Now the workshop Im talking to about doing the work for me says the best approach will be to drop the cross member and remove the engine and gearbox as one piece from the car. Ive read mixed reports about how well this goes. While the engine is out i'll be replacing front wheel bearings and recoing the front drive shafts, cv's and boots etc. I also intend on doing a complete fluid change as well for the driveline.

Im after some "informed" opinions about how to best go about doing this.

Cheers,

Ian

[GTR1993]

I dont see why you care? Everyone I have dropped and seen dropped are done by dropping the crossmember.

[Duncan]

what did you decide to do?

I have done both, but thru the top is easiest in most cases. particularly if the box is staying in. The sump can foul on the sway bar but a bit of tilt on the motor will get it past that, thos engine tilters or similar are handy

[GTRNUR]

Still undecided, though it will probably end up being the workshops decision. Im against gutting the whole car, which is why I prefer the engine out the top as opposed to dropping the cross member, but im also consious about whats easier and less risky as far as accidental damage too.

Maybe i'll just have to close my eyes when the workshop is doing that part... I can just as easily drop the sway bar off the car to make things a little roomier too. It would be a lot easier if i lived in sydney or melbourne where GTR specialst workshops are everywhere.

I have finally tracked down a copy of the R34 GTR Supplement 1 service manual too, so hopefully that will be useful too. The standard R34 manual is mostly GTT and completely useless with no engine or driveline information.

Wont be long till the transplant is done now though. Just waiting for my accountant to do this 1/4's BAS and I'll find out if the engine transplant will a nismo front bar swap and perhaps a couple of other nismo goodies.

[royb31]

Still undecided, though it will probably end up being the workshops decision. Im against gutting the whole car, which is why I prefer the engine out the top as opposed to dropping the cross member, but im also consious about whats easier and less risky as far as accidental damage too.

Maybe i'll just have to close my eyes when the workshop is doing that part... I can just as easily drop the sway bar off the car to make things a little roomier too. It would be a lot easier if i lived in sydney or melbourne where GTR specialst workshops are everywhere.

I have finally tracked down a copy of the R34 GTR Supplement 1 service manual too, so hopefully that will be useful too. The standard R34 manual is mostly GTT and completely useless with no engine or driveline information.

Wont be long till the transplant is done now though. Just waiting for my accountant to do this 1/4's BAS and I'll find out if the engine transplant will a nismo front bar swap and perhaps a couple of other nismo goodies.

i've been chasing a 34gtr service manual where did you get it from (sorry to get off track)

[GTRNUR]

Just had a read of the manual and it litterally is a service manaual, and doesnt cover engine removal like the R32/33 gtr manual.

It does cover all the other R34 GTR specific systems like the R34 transfer case, MFD, super hicas, ecs, etc.

I found it on http://www.scribd.com/doc/5030134/Nissan-R...nual-Supplement.

Not sure if this is a copywright violation or not, though I feel Ive spent enough with Nissan over the years to warrant a free service manual. You can also download it here... http://www.odengines.com/R34_Supplement_1.pdf. Mods feel free to remove the link if necessary.

[Deano45]

You can get the engine in and out through the top without any real troubles.

I did this on my R33GTR with box and engine complete.

My sump extension is slightly larger than the hi-octane one and although it is tight, you can get it in.

Using the hoist to angle the car and the engine crane, they should be able to get it in.

Link to here to show sump extension

Link here to engine in car

It all comes down to cost/labour in the end. Will it be quicker for the workshop to drop the sub frame or through the engine bay?