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Gtr33 - Rebuild Rb26 Engine

lav

By lav,
in Victoria

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lav Community Regular

lav

Posted
Posted

Hi guys,

I have engine oil leak from under the car and found out that it could be the crank f%&ked....

reason is that the seal has been changed twice withing 3 weeks and it still happens.....

Been told that the crank might be f&%ked or the oil pump.....

anyone has any ideas for any other alternative :D

one mechanic told me that they can re-polish the crank instead of changing it and not to rebuild the engine as it will cost a lot and not good for the engine.....

since the engine is going to be ripped apart, do you guys think its good to get it rebuild as well with forged pistons and stuff ????

Any good places you recommend or might as well get a second hand engine????

PLEASE HEEEELLLLLLPPPPPPPP :(

Lav

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lav Community Regular

lav

Posted
  • Author
Posted
Hi guys,

I have engine oil leak from under the car and found out that it could be the crank f%&ked....

reason is that the seal has been changed twice withing 3 weeks and it still happens.....

Been told that the crank might be f&%ked or the oil pump.....

anyone has any ideas for any other alternative :D

one mechanic told me that they can re-polish the crank instead of changing it and not to rebuild the engine as it will cost a lot and not good for the engine.....

since the engine is going to be ripped apart, do you guys think its good to get it rebuild as well with forged pistons and stuff ????

Any good places you recommend or might as well get a second hand engine????

PLEASE HEEEELLLLLLPPPPPPPP :(

Lav

Also, this only happened after my major service.....

could anything has gone wrong while the service???

VSPECT Mentor

VSPECT

Posted
Posted

if you have the $$ go for it with upgrading the parts..but if you dont then leave it...its all depends on your budget...wouldnt trust just random second hand engine...well thats my personal opinion....can be wrong...and who ever you speak to, make sure they have worked on the engine heaps before to ensure the best quality of work....

El_Mutto Collaborator

El_Mutto

Posted
Posted
if you have the $$ go for it with upgrading the parts..but if you dont then leave it...its all depends on your budget...wouldnt trust just random second hand engine...well thats my personal opinion....can be wrong...and who ever you speak to, make sure they have worked on the engine heaps before to ensure the best quality of work....

i agree. i was in the same boat when my bottom end bearing went.

It all depends on how much your willing to spend. my rebuilt with forged bottom end ended up costing over 10g alone.

Take it to a few other places if you can and get them to have a look at it like RE customs or Racepace.

lav Community Regular

lav

Posted
  • Author
Posted
i agree. i was in the same boat when my bottom end bearing went.

It all depends on how much your willing to spend. my rebuilt with forged bottom end ended up costing over 10g alone.

Take it to a few other places if you can and get them to have a look at it like RE customs or Racepace.

Spoke to Chasers in Ringwood....

They can do the engine rebuild by changing the pistons to Forged CP Racing pistons, Tomei Conrod and ARP head bolt.....

costing me $7000.00............

what you guys think???

if im only doing the crank and oil pump change, will be $4300.00.....

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Sounds like its just the oil pump mate. Get it looked at properly before getting too excited about rebuilds.

Just a oil pump seal/replacement will be signifigantly less.

As for a rebuild if you need it, Racepace.

But i highly doubt you need one mate, sounds minor.

lav Community Regular

lav

Posted
  • Author
Posted
Sounds like its just the oil pump mate. Get it looked at properly before getting too excited about rebuilds.

Just a oil pump seal/replacement will be signifigantly less.

As for a rebuild if you need it, Racepace.

But i highly doubt you need one mate, sounds minor.

just a oil pump???

hmmm......

might just get that done than i guess......

rebuild is too expensive.......

dmac_25 Grand Master

dmac_25

Posted
Posted

How many KM has the engine got if its a high motor could also be ring damage and pressurising the sump and blowing the seal out.

Ive seen it happen on cars with high KM and worn rings.

You need to find out if the seal is tearing or if its blowing out is its tearing then it would be from either improper instalaling with a bur on the crank or a worn spot in the crank to cause it to tear the seal.

If its blowing out then the sump is filling up with cylinder pressure.

lav Community Regular

lav

Posted
  • Author
Posted
How many KM has the engine got if its a high motor could also be ring damage and pressurising the sump and blowing the seal out.

Ive seen it happen on cars with high KM and worn rings.

You need to find out if the seal is tearing or if its blowing out is its tearing then it would be from either improper instalaling with a bur on the crank or a worn spot in the crank to cause it to tear the seal.

If its blowing out then the sump is filling up with cylinder pressure.

Only done 100K and just did major service recently.....

seal has been changed 3 times now....

not sure what to do as nothing can be done until the motor is down......

esther Enthusiast

esther

Posted
Posted
How many KM has the engine got if its a high motor could also be ring damage and pressurising the sump and blowing the seal out.

Ive seen it happen on cars with high KM and worn rings.

You need to find out if the seal is tearing or if its blowing out is its tearing then it would be from either improper instalaling with a bur on the crank or a worn spot in the crank to cause it to tear the seal.

If its blowing out then the sump is filling up with cylinder pressure.

wouldn't it blow out the dip stick first?

dmac_25 Grand Master

dmac_25

Posted
Posted

it depends mate all engines are different on this toyota engine that it was happening two was blowing out the front seal i changed it 4 times for him second time i pulled the oil pump off cleaned up the crank and put a speedy sleeve on the crank as it did have a wear mark in the crank it was good for about 3-4 weeks then slowly started to leak then will end up pissing out.

THis one had a big sign as not only was it pissing oil out the seal but out the exhaust as well so not only was it burning oil but leaking it as well.

Just for starters give the engine a compression test just to rule out if its down one one piston some times you might get an engine that has got ring or ringland damage that you wont pick up be the ear and its pressurising the sump.

Other then that pull the front off clean up the crank see if its got and marks or burs if so hit it with emmery then a speedy sleeve if it is bad.

Just because it may read 100,000km doesnt mean its done that

lav Community Regular

lav

Posted
  • Author
Posted
it depends mate all engines are different on this toyota engine that it was happening two was blowing out the front seal i changed it 4 times for him second time i pulled the oil pump off cleaned up the crank and put a speedy sleeve on the crank as it did have a wear mark in the crank it was good for about 3-4 weeks then slowly started to leak then will end up pissing out.

THis one had a big sign as not only was it pissing oil out the seal but out the exhaust as well so not only was it burning oil but leaking it as well.

Just for starters give the engine a compression test just to rule out if its down one one piston some times you might get an engine that has got ring or ringland damage that you wont pick up be the ear and its pressurising the sump.

Other then that pull the front off clean up the crank see if its got and marks or burs if so hit it with emmery then a speedy sleeve if it is bad.

Just because it may read 100,000km doesnt mean its done that

Thansk heaps for all the advise guys.....

i will do a compression test on it to see how the engine is......

Jezza-gtR Mentor

Jezza-gtR

Posted
Posted
silly question but the same workshop done the seal 3 times? and had they used only OEM seals? the aftermarket ones are shit and they do leak after a small amout of time.

Both genuine and aftermarket seals were used.

lav Community Regular

lav

Posted
  • Author
Posted

Just found out that the oil could be leaking from Cams and dripping down to the crank seal.....

Will get it checked out.....

might clean the engine myself, put the car up and accelerate while its up.....

will than be able to see the leak where it is coming from......

its totally f**ked....might have spent the same money on tuning and turbo upgrages!!!!

never had this happen before....been told that it was happening before the major service, but i doubt it....only realised after the service that my driveway started to have stains......

never had any oil marks on my driveway, and now, oil marks everywhere.....

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