oil pressure & oil leak damn 7m!

[Bill UK]

Originally Posted by aamt07

OK, cool thanks! whats up with this small o-ring and why is it at the back of the CPS shaft in the diagram in this link?
http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=21

They call that technical drawing; it’s a clear way to illustrate parts or items, bog standard drawing office procedure worldwide. Many of the drawings on the cygnusx1 site are illustrated this way for clarity. An assembly drawing on the other hand would show the O ring in the correct position or an arrow pointing to its correct position.

[aamt07]

Okay so I have replaced the O-ring in the CPS. The oil leak has seem to stop but there were 2 reasons I wanted to replace the O-ring. 1 of course was the oil leak the other was smoke would rise from that general area. I thought ok its because of oil leak. Now when I start the car, let it run and warm up everything seems to be fine, until I turn the car off once I trun car off it starts to smoke in that area and it dosent smell like oil it smells like plastic burning. I checked inside of the dust cover to see if any oil leaked into CPS and theres nothing also thought the reason why there was no smoke was because of the fan turning on blowing the smoke to back of engine i used a red laser to see if i could see any kind of smoke at night time and there was no smoke. Anyone have this problem at one time or another? Or know what it could be?

By the way from start to finish it only took 2 hours, and i was taking my sweet time with it. rather easy fix!

[MA70-3.0GT]

just a thought, are you still running this showing no oil pressure? have you verified that this is a faulty reading at all as you'll kill the motor if there really is no oil pressure...

My immediate thought with the two problems though would be the oil pressure sender, which is the silver part just below the freeze plug in the above pic. if this is loose/damaged oil could be leaking from here & not registering the pressure correctly. Get that fixed ASAP as the oil pressure & water temp gauges are the 2 most important on any motor IMO...

[aamt07]

I got that fixed at the same time as the CPS. I recur the wire and scratched up the inside of the connector just to see if the could be the problem and it seems to be working now.

[MA70-3.0GT]

good good, manage get the leak sorted too?

[aamt07]

Lol well I bare all bad luck!!!!
I did manage to time it better than it was before by hand, but it's still leaking oil I think it's coming from the turbo line it just makes sence from all I see plus i had 2 bad cats and the car was never times right and I drove it for about 20+ hours before I got the cats fixed and just now timed it right so it might of been some way building from a slow leak to what I have now over a 5 month span I have noticed these turbos are real touchy!!!

[RedAstig]

Hey guys just today, my oil pressure gauge is on zero while running and my check engine light is on and off, do you think I had the same problem? what is the best way to check it myself? or i can bring it to any mechanic shop? thank and any advice is highly appreciated. Please Help

[RedAstig]

Its 1988 7mgte, thanks.

[Green7mgte]

run a diagnostic for your check engine light.. instructions are in the faq.

[MK3Newb]

Originally Posted by aamt07

OK, cool thanks! whats up with this small o-ring and why is it at the back of the CPS shaft in the diagram in this link?
http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=21

i think that diagram is showing the o-ring that goes on the back of the shaft not necessarily in front of the gear cause look how it has a diamond on it i think its just pic to show you the parts involved with the piece.