I checked my car today and I noticed that my Oil Metering Pump is leaking pretty badly. My questions are:

1. How bad would it hurt my performance?
2. What kind of things will I expect if I don't fix this problem right away?
3. Is there a quick fix for this or should I just replace my OMP?
4. How easy or should I say, how hard is it to replace the OMP?
5. Is it okay to get one from a junkyard or do I really need to buy a new one?

Answers needed, please help! Thanks.

-hENRY

 

1. It isnt a performance part.
2. You can expect to screw up seals if you dont replace it.
3. Just replace it.
4. Its not hard to replace, just pick up a Haynes manual.
5. Its your call on this one, new ones are pretty $$$

 

a new OMP would be cheaper than say...a new/rebuilt engine right?

cuz thats what youd be lookin at if u let ur OMP go south, smoke ur seals...ruin ur housings...over heat, blow ur o-rings...etc. u get the idea right?

chris

 

I'd throw a bit of premix in there untill you fix the proplem. won't hurt anything.

 

Good idea. I completely forgot about that.

 

thanks guys for replying, but what is a premix and where can i get one? i've been hearing about this before and i don't know exactly what this does to those engine with a bad OMP.

 

Go to:
http://www.mazspeed.com/oilmeteringpump.htm

I did this re-build on my '86 OMP and it is working great.
Much cheaper than a new OMP.

 

hmmm, just a thought, since flubyux2 mentioned something about overheating, does this mean that my temp gauge will also stay on thi high side if I have a leaking OMP? please correct me if i'm wrong.

 

the 87-88 OMP's are cheap, just buy a new one. If you own an 89-91, try to find a used one. Keep in mind, on the 89-91's if the OMP completely fails the ECU will go into "limp home mode" and will barely run.

 

Premix is nothing more than the act of mixiing a certain amount of two-stroke engine oil into your gas tank. The conventional wisdom here on this forum suggests a ratio of 128:1, which works out to one ounce of oil to one gallon of gasoline.

Simply put, this is merely pouring the given amount of two-stroke oil into your gas tank BEFORE you fill it with gas. This assures the complete mixing of the oil and gas. For instance, if you are gonna fill your tank with ten gallons of gas, then first pour ten ounces of two-stroke oil in first.

 

yea, now that premix is mentioned.... i belive that Mazdaspeed teams won the IMSA/GTU manufacturers championship races in their NA cars w/ 79 octane gas...that was premixed. i could be wrong.

but in the jet ski world, we remove our oil injection, and run premix. it eliminates the weight, complexity, and the chance of failure.

actually, i dont know how great this would be, but see about gettin some Rotax marine 2stroke oil. its designed to be ashless, and leave no deposits behind, and be smokeless too. its what we use for our Sea Doos. could be something a little better than that Walmart brand 2 stroke stuff. but FYI, rotax engines arent rotary engines. they just have a rotating valve over the piston. instead of lifter actuated valves. so anywho. i hope this is helpful to u guys.

chris