Rb26 Rebuild

[steven22]

I have done a bit of searching and found that all the rebuilds done on an rb26 are to beaf them up. What I want to know is what is invloved in rebuilding a standrad r33 gtr motor back to standard form. And roughly how much it would cost. Including labour and excluding labour. Has any one rebuilt their gtr back to standard.

[R31Nismoid]

I'd have a stab around 4-4.5k motor in/out.

It all depends on whats wrong to begin with.

If the crank is in trouble, thats $1100

Motor in/out is ~$1000

So thats ~2100 before anything else is done/purchased/inspected

[steven22]

As of 26/06/07 I have had the engine pulled apart. Found that piston 6 was missing a section so I decided to have it rebuilt. I was wanting to rebuild it back to the standard specification but this did not seem feasable as standard gtr pistons from nissan are over $2000. So I went with a set of oversized forged JE pistons. The motor is currently being rebuilt and will hopefully be finished by the end of the week.

Total known costs to date:

-Pistons , $1660 with rings inc

-Labour to have block pulled apart, honning of all bores and pistons attached to original conrods and a gasket kit, $1000

-Engine removal $unknown

-Engine reinstatement $unknown

[Beer Baron]

are you going to replace bearings too while your in there? I hope so!

I'll be interested to see how it comes out, and what the total cost is.

[monga]

I'd budget around 7-8k safe, the gasket kit, headgasket, pistons, bearings, block and head work plus labour will pull upto to that easy, not to mention a clutch or ecu ..

I did the works on my gtr cost near 15k...

[SimonR32]

you are better off selling your engine to someone who wants to build a motor and buy a second hand job.

rb26's are depressingly expensive... if you do one thing u may as well do another and another and another and eventually you will be $20k out of pocket

[rob82]

you are better off selling your engine to someone who wants to build a motor and buy a second hand job.

rb26's are depressingly expensive... if you do one thing u may as well do another and another and another and eventually you will be $20k out of pocket

Amen to that - open your wallet, bend over and just take it like a pedophile in a jail shower!!!

[steven22]

Ok, as of 02/09/2007.........

Total Rebuild with forged pistons came to $6040.77

Break down of price

Engine reconditioning works: $1012.60, what was conducted is as follows.

-Degrease & hot tank long motor

-Engine block bore & hone

-Surface grind head

-Measure & linish crank shaft

-Dismantle, check tunnels, check conrods, crank & pistons

-Vacum test, dismantle & inspect cylinder head

-Bleed down hydraulic, fit valve stem seal

-Supply main bearings

-Supply conrod bearings

Misc. Parts.

-Set of JE Forged pistons rings inc. $1660

-Full gasket rebuild kit $358.84

Dismantle & Reassemble engine(Incl assembly of head) $799

4 Liters of running in engine oil $32.65

2.5 Liters of Diff oil $20.68

6 Platinum spark plugs $108

Engine timing belt $109

52 Hours labor to remove head and engine, reinstate $1960

engine after it was rebuilt, road test, bed in new rings

& service

I also replaced the gear box oil with the redline light weight $152.47

shock proof gear oil but that is not included in the total

rebuild figure

I have done a little over 2000km since the rebuild and am happy to report that the engine is running well & better than ever. I will be taking the car to AVO Turboworld in Melbourne in the middle of this month to have a final check over on a dyno, as well as a power run.

FYI, What actually happened was I noticed that when the engine was cold it would miss a little but when it warmed up it would come good. Except one day it didnt come good. So I had someone look at it and we found that cylinder 6 was compressing at about 49KPa(I think it was measured in kilo pascals), compared to the usual 160KPa(I think) from the remaining 5, so we pulled the head off and found that a big chunk of the piston was gone from piston 6. Later when pulled apart it was found that piston 5 had a hair line fracture. The engine was then rebuilt.

Most importantly, We arent sure why it happened or where the pieces of the piton went as on inspecting both turbos, they had suffered no damage.

Another point I will make is that this GTR is not very modified.....at all.

List of mods.

-Cat back titanium Fijutsubo Giken Exhaust and now JE oversized forged pistons-Only mechanical mods

[R31Nismoid]

Please tell me you didnt put back on the stock turbos?

If they let go, you'll most likely be rebuilding again... and thats not cool.

Dont up the boost, its not worth the risk for your motor

[steven22]

Yeah, standard turbo's went back on, but its still running standard boost and will stay that way. For now I'm enjoying the standard car, despite the slight increase in displacement. If it was feasable a set of standard pistons would have went in.

I also forgot to mention it has 2 Blitz blowoff valves, but there not really much of a mod these days.

[Beer Baron]

man I wish I knew a place that worked for $37 per hour! then again 52 hours is a lot of labour.

all in all it sounds pretty reasonable to me. well done.

[benm]

I noticed that too Baron, very cheap labour.... groupbuy on engine rebuilds?

[steven22]

Nah, I know the guys who removed and replaced the engine. They ran it in a bit for me aswell all at a reasonable price of course.

[TTT]

$6K for an RB26 rebuild with forged pistons..

got to be the lowest cost so far.

I'd be real worried about those turbo's now..

main problem with RB26 rebuilds though isn't it..

even if you were to put a set of hiflows on there, the cost to purchase and have them installed would be about $2K surely.

[steven22]

Yeah I thought of doing something to the turbos but they have only done 58,000k's and are still on standard boost.

[SimonR32]

standard turbos and valve guides still???

6k twice isnt going to end up looking cheap

[steven22]

I'm new at this but is there supposed to be something wrong with my turbos because they have been inspected and there is nothing wrong with them. Everything that needed to be replaced, was.

Tell me this, what was I going to say when selling them. "here's two Garret T28's of an R33 GTR for sale. In excellent condition with no shaft play, impeller blades all in good condition. Reason for selling: They were left over parts when I rebuilt the engine"

Can anyone please tell me why they need to be replaced. More importantly can anyone tell me why a stock version of one of the most alleged bulletproof and reliable motors built by Nissan managed to chew up piston 6

[SLIPPERY]

detonation will kill any engine in time

hows your fuel pump after 10 years?

are your injectors flowing the same after 10 years?

changed your fuel filter recently?

what fuel were/are you putting in the thing?

it might have been on the edge when it left japan. whos knows what kinda life it had before

[RNGTR]

rb26's are depressingly expensive...

This man speaks the truth!

[wrxhoon]

standard turbos and valve guides still???

6k twice isnt going to end up looking cheap

If the turbos let go ( they have a habbit of letting go when removed and replaced) it will be a lot more that $6k

Looks like they used the old oil pump as well, next time they will have to change that tooand a lot of other stuff that will have ceramic dust through it.