nick1

i am running premix, and all i did to block off the omp is with a vacum hose that goes from one outlet to the other outlet, tying them together. is this satisfactory?

vipernicus42

iTrader: (4)

No.

Two reasons. Rubber vacuum hose isn't meant to take oil. It will degrade and start to leak, given time. And #2 is that since both outlets are pumping oil *out*, and there's nowhere for the oil to go, it will build up pressure, and I don't know how much pressure either the vacuum hose can take, or the OMP can take before leaking.

If your OMP works, why block it off? $20 and you can rebuild it to make sure it works perfectly and never have to worry about premixing.

And if you want to block the OMP off completely, remove it, remove the little drive-thingy that turns it and install a blockoff plate.

Jon

Randokuky

I dunno, I was told to drain the oil, take off the pump, gut it, place a penny in the middle and rvt the **** out of it.

FIBREMAZ

take off the OMP all together, make up a plate from 1.6-2mm thick stainless steel and rvt it as you suggested. It will look alot better than a coin.

blwfly

iTrader: (4)

i agree with viper why get rid off it unless you have a diff carb and need to premix

Randokuky

no the coin show I have put money into it.

Latin270

Yes bolck off plate is the way to go but I have used a hose and looped it from one OMP outlet to the other with no problems at all. Just check it occasionally. Mine has been "looped" for about 12k miles with NO leaks!

nick1

well there you go. i don't think the pressure would be enough to do anything. i just worried mostly about whether or not it might get "backed up" or something or cause other problems

blwfly

iTrader: (4)

if you look at how much oil it puts in the carb which is not lots it would take along time before it could build pressure i havnt seen the insides of one if its sealed oor just pushs oil it may vent back to the block

Latin270

They key is to remove the rod that controls the OMP. It connects to carb.

dufourmike

iTrader: (1)

I dont think this came out right
Im pretty sure the carb has the loop, and the other are no attached? its been a while since i looked at it. come to think of it, maybe this is the big leak we cant track down.

81gsl12a

iTrader: (1)

you cant see the coin you rtv it to the inside of the OPM..you have to pull the little gear out of it than it leaves a hole the same size as a penny...rtv it and your done...dont have to make a block off plate you just bolt the OPM back to the side of the motor and nothing spins and it cant suck in OIL and it only cost a penny and you dont need any tools or skill to do it


Randokuky keepin it real with backyard tricks learned from the best

FIBREMAZ

I reckon it took about 10 minutes to make my block off plate. It's not really that hard.

Latin270

Backyard tricks = "Ghetto" tricks up here, but if it works it's all the same!

aussiesmg

iTrader: (1)

Made a block off plate out of 3/16 aluminum in 10 minutes, very easy.

RotaryRevn

So you can just put a block off plate leaving the shaft that turns the omp in the front cover right? It won't hurt anything having that shaft spin against the block off plate?