Weird problem

ParaDoX667-aus

New Member
Feb 29, 2008
4
0
0
Adelaide
Hi all,

hope you're all well ... have a weird problem that's driving me nuts in my supra:

First some information:

1986.5 MA70 Manual
7mge

Under load (sometimes) my supra feels like it's going to pop.
The only way I can describe it is it seems like it's missing, but then is fine, most times... other times its like pouring water into a full balloon, that pressure build up feeling.

When it does it, it jerks around really badly, like the engine is ready to explode.

I've had the plugs and leads replaced recently so I don't think it's that.

The other side affect is that my oil pressure drops dramatically when it happens / before it happens.

Eg normally running approx 6kg/cm then the problem starts and it drops to under 2kg/cm.

Suggestions / advice / help?

If it's not something simple / cheap to fix the 7mge will be going in the bin for a better engine... :evil2:

Cheers for any help :)

Ben.
 

ParaDoX667-aus

New Member
Feb 29, 2008
4
0
0
Adelaide
I'll start there - noticed tonight that the oil pressure is really badly affected by having fan on :S maybe just coincidence.

Cheers for the replies so far :)
 

AJ'S 88NA

New Member
Jul 26, 2007
2,419
0
0
Florida
Sounds like maybe you have some blockage somewere, or pressure relief valve on the oil pump maybe is getting bad. Could also be your oil filter.
 

ParaDoX667-aus

New Member
Feb 29, 2008
4
0
0
Adelaide
supramk3man;1054982 said:
You said you just put new plugs, is it possible one is bad or didn't get gap right?

Plugs and leads where done at respected mechanics ... so hopefully not...

As for codes: I haven't checked yet
(waiting for the weekend so I actually have time and light to do it properly)

With the blockage idea I'm going to replace oil pump and oil filter and check all the hoses / piping... worst case it's something like that and wont cost me the earth.

No turbo, it's just a p00 7mge....

Again cheers for the replies :)