I'm looking at buying a '90 N/A 5 speed and the owner says it never uses oil inbetween oil changes. Sounds to me like the metering pump is bad? Should I stay away? Thanks for the replies.

 

A bad OMP on a series five should kick a code and if your driving the car, after a few minutes the ECU should go into LIMP mode and the car will drive real crummy. Until you turn it off and start all over again> Then it will repeat the scenario.

Prove the OMP is not working? Maybe take one of the banjo bolts off the OMP and rev the engine for severall minutes and see if oil is comig out where the banjo bolt was.

 

If the oil metering pump was bad the engine would be blown...


my bad its a series five... nevermind.

 

Doesnt it seem odd he said it uses no oil?

 

If a car is driven just around town and not rev'd up very much, it will use very little oil thru the OMP.

Series four or series five, the OMP will not cause the engine to seize up for several tens of thousand miles. Just FYI. The engine WILL wear out faster though. OMP do not feed bearings.

 

Thank's really i didnt know that! I was under the impression that the lack of oil to the chambers would cause the engine to burn up.

 

hes said it used no oil probly becuase he does not know that rx7's actually inject oil into their mixture... think about it, if the guy didnt know, of course he is going to say that... so youll want to buy it. (he knows if a piston engine smokes its bad so he said that)

 

i doubt he changes his own oil, im sure he doesnt even check it, he just wants to sell it. how many miles and how much does he want

 

buy it and just go with premix

 

most people alwlays lie when selling a car,

how ever in my opinion when i say a car doesnt use any oil i mean it doesnt leak any haha!!! he probably means it doesnt leak...

 

He's just telling you that so you'll buy the car

 

Also though, it injects oil based on how far you are pressing the gas pedal. So maybe he doesn't press it far down enough to inject much oil.