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Today Was Drop The 25 In Day

zertek

By zertek,
in Engines & Forced Induction

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zertek Proficient

zertek

Posted
Posted

hey guys,

had this as an on going project for ages now (R32 GTS4: RB20det to RB25det conversion), money issues have been holding me back badly. So when i had the oportunity to drop her in today, i was as excited as a dog with a shmako. Sadly though we failed. Reason being is we tried to tackle it by leaving the gear box in and trying to lower the engine in an join it up. But it was too hard to get the shaft in and line everything up. So now it looks like the gear box will be coming out :P which sucks because i dont know how im going to get the tail shaft off the gear box with thoes nuts being so freakin tight!

Here are a couple of pics:

post-32703-1193565002_thumb.jpg

post-32703-1193565045_thumb.jpg

post-32703-1193565149_thumb.jpg

Also have any of you here tried dropping an engine in with the gear box still in?

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Simon-S14 Grand Master

Simon-S14

Posted
Posted

yeah its much harder but not impossible... you need to be 100% sure that the clutch is alligned first (use an aligning tool) otherwise you'll be there all day and get no where. you also need to make sure that the box angle is the same as the engine angle so that the shaft goes into the clutch true and straight... its a combination of getting a few factors right and then it all just falls into place.

good luck shutting the bonnet with that turbo too :P

lukew105 Experienced

lukew105

Posted
Posted

I have personally experienced this mans blood sweat and tears.. more of the first two. So many problems along the way.. nothing went right for a while there but ..

finally its close to being done. Id love to help out cous but so friggin busy!

HRthirtyone Rising Star

HRthirtyone

Posted
Posted (edited)

make sure your new spigot bush fits on the input shaft of the gearbox.

Make sure the gearbox is not in gear.

Make sure clutch is aligned properly.

Also helps sometimes if your engine mounts are loosened off.

Make sure your engine crane is holding the engine at the right angle, with the right amount of reach.

Dropping the tailshaft out is easy?!

I have assed around for hours trying to get an RB on, and sometimes they go right in... sometimes you will only get it so far, then you have to use gearbox bolts to pull the rest of it up...

Hope it helps in some way.

ps take that friggen monster snail off! why u need that on before its in??!!!

Edited by HRthirtyone
zertek Proficient

zertek

Posted
  • Author
Posted
yeah its much harder but not impossible... you need to be 100% sure that the clutch is alligned first (use an aligning tool) otherwise you'll be there all day and get no where. you also need to make sure that the box angle is the same as the engine angle so that the shaft goes into the clutch true and straight... its a combination of getting a few factors right and then it all just falls into place.

good luck shutting the bonnet with that turbo too :)

hey simon,

cheers mate, a crack at it all again this morning after i wake up. i have a rostered day off so ill try and make use of it. the bonnet will shut :P same turbo set up was on the old motor.

Mate you should be able to put the engine back in with the gearbox in the car. ive done it plenty of times. what you having the most trouble with?

maybe the fact that i dont have little japanese hands :O no, really i just couldnt even get the clutch in front of the shaft, the engine just tries to sit on everything, everything gets in the way and i end up trying to keep 5 things clear so i can lower the engine down further etc. im going to try again this morning at about 8am.

I have personally experienced this mans blood sweat and tears.. more of the first two. So many problems along the way.. nothing went right for a while there but ..

finally its close to being done. Id love to help out cous but so friggin busy!

all good luke, i understand. besides you have what 6 import projects happening now? haha, you crazy bastard.

cheers mate

mate its going to be a good thing.

Take your time you will enjoy it more.

ill enjoy it when its actually in an functional and i can appreciate driving the thing a whole lot more knowing how much work i put in to it.

make sure your new spigot bush fits on the input shaft of the gearbox.

Make sure the gearbox is not in gear.

Make sure clutch is aligned properly.

Also helps sometimes if your engine mounts are loosened off.

Make sure your engine crane is holding the engine at the right angle, with the right amount of reach.

Dropping the tailshaft out is easy?!

I have assed around for hours trying to get an RB on, and sometimes they go right in... sometimes you will only get it so far, then you have to use gearbox bolts to pull the rest of it up...

Hope it helps in some way.

ps take that friggen monster snail off! why u need that on before its in??!!!

yea shaft fits, was in neautral, clutch is aligned properly (used a shaft dummy). I dont understand what you mean about loosening the engine mounts off? the thing is dangling from a crane, doesnt everyone mount it to the gear box before they worry about the other to engine bay mounts/??? :)

dropping the tailshaft out is easy i know, but you havent felt how tight the bolts in mine are :) theres 2 that are like in possible! think they need to be drilled out.

and the monstor snail will be a little to hard to put on once the engine is in. ive tried taking it off the old engine before and it was no fun at all.

depending on whether the rb25 came from infront of an auto trans check that the auto spigot still isn't in the rear of the crank.

ryan

yea it came from an auto, but i have already removed the auto spiggot and replaced it with a manual spig. cheers

IF there's a will, there's a way... I admire what you're doing... wish I had the know-how to do something like this. Amazing.

Is that a T35 Turbo I see?

cheers mate, really i knew not much at all before all of this. i just threw myself in the deep end about 5 months ago and started pulling stuff to peices until i got to where i am now. i have learnt so much in such a short time and its bein a really enjoyable experience. i know if i ever had to do this again it would be 600% easier the second time.

the turbo is a GT3540R

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

hey man

there is such thing as a clutch alignment tool, the best tool i have ever made was when i cut the front shaft off the front of my Nissan Blue Bird gearbox which i would put in the clutch and slide into the spiggot bush then tighten the clutch and make sure the shaft can slip in and out easily then your set for putting the box in properly in the car, it has to be nearly 100% to slide in first go.

zertek Proficient

zertek

Posted
  • Author
Posted
hey man

there is such thing as a clutch alignment tool, the best tool i have ever made was when i cut the front shaft off the front of my Nissan Blue Bird gearbox which i would put in the clutch and slide into the spiggot bush then tighten the clutch and make sure the shaft can slip in and out easily then your set for putting the box in properly in the car, it has to be nearly 100% to slide in first go.

yea i used one of thoes plastic dummy shafts to put the clutch on. im wondering though if there is going to be an easier way to be sure the shaft and the clutch will be at the same angle and will just slide in. or will i have to pull the engine back apon failure, rotate the shaft slightly then try slide it back on. I think i might take out my power steering and air conditioning because they are really in my way

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

where are you ?

i would lend you my shaft, but there would have to be a deposit left. I will go insane without my shaft on my next box removal job.

You need the shaft from a box itself, i had to sacrifice a old 4 speed box to get it but it works on all RB engines as well.

abu Grand Master

abu

Posted
Posted (edited)

Yep that clutch alignment tool is such a big help!

Engine is looking good man, and that is one big fkn turbo! 3540 looks heaps big when sitting up against the RB25 out of the car.

How much power you hoping for, and are you just going to REMAP the standard R32 ECU or run an after-market stand alone?

Looking very good, hope you get it in and running soon, but like everyone said don't rush. Do it once and do it right!

Edited by abu
STATUS Grand Master

STATUS

Posted
Posted

you need to jack the car up higher (so that you can alter g/box hieght with a econd jack). You can loosen the xmember bolts to give you an extra inch if it is close. You in Melb?

bubba Grand Master

bubba

Posted
Posted

So much easier with a hoist.. we always take the box out first. Pretty much have to drop the engine crossmember almost all the way off to get enough angle to get the gearbox in and out.

Must say I would imagine it is a hell of a lot easier wiggling the box about to get it in than you having to wiggle the engine!

Good luck!

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