Hi there Supramania!
Im having a issue with my 1989 7M mk3 supra, its been off the road getting a suspension rebuild for the last two years, 7mgte ran perfect before taken off the road, since being off the road i have fitted HKS camshafts to the engine, Shimmed the oil pump 7mm and fitted new big end bearings, Engine also has a new remote oil filter t-stat and cooler, -10 lines
Turbocharger is a Turbonetics 60-Trim front with a T4 rear in a ct26 exhaust housing, that is the same as before it was taken off the road nothing has changed but now engine oil is leaking out of the exhaust (just the down-pipe + 1meter pipe connected no mufflers) after 15-20 seconds of running had around 1/4cup of oil on the floor
Small amount of blue smoke comes out exhaust, but not the amount id expect if the engine was burning lots of oil, Kinda leads me to think its coming out of the turbo and going down exhaust without being burnt? rather than a leaking valve stem etc and oil going through the combustion cycle and the leftover oil makes it way out and onto the floor
Engine and turbo was oil primed without EFI fuse before first start
Question is?
1. Has the oil seals gone on the turbo? leaking straight into the exhaust
2. Has the shimmed oil pump pressure increase caused this? Or being parked up for 2years?
3. Or the oils coming from the engine, Valve stems, head-gasket (but engine was in perfect running order before suspension rebuild) or the sitting has corroded the head-gasket?
Head-gasket is a Toyota item with a rebuilt head, ARP studs
Not really sure what to do, Figured id ask the community for advice, see if people have had a similar issue?
Thanks
Nick
Im having a issue with my 1989 7M mk3 supra, its been off the road getting a suspension rebuild for the last two years, 7mgte ran perfect before taken off the road, since being off the road i have fitted HKS camshafts to the engine, Shimmed the oil pump 7mm and fitted new big end bearings, Engine also has a new remote oil filter t-stat and cooler, -10 lines
Turbocharger is a Turbonetics 60-Trim front with a T4 rear in a ct26 exhaust housing, that is the same as before it was taken off the road nothing has changed but now engine oil is leaking out of the exhaust (just the down-pipe + 1meter pipe connected no mufflers) after 15-20 seconds of running had around 1/4cup of oil on the floor
Small amount of blue smoke comes out exhaust, but not the amount id expect if the engine was burning lots of oil, Kinda leads me to think its coming out of the turbo and going down exhaust without being burnt? rather than a leaking valve stem etc and oil going through the combustion cycle and the leftover oil makes it way out and onto the floor
Engine and turbo was oil primed without EFI fuse before first start
Question is?
1. Has the oil seals gone on the turbo? leaking straight into the exhaust
2. Has the shimmed oil pump pressure increase caused this? Or being parked up for 2years?
3. Or the oils coming from the engine, Valve stems, head-gasket (but engine was in perfect running order before suspension rebuild) or the sitting has corroded the head-gasket?
Head-gasket is a Toyota item with a rebuilt head, ARP studs
Not really sure what to do, Figured id ask the community for advice, see if people have had a similar issue?
Thanks
Nick
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