hxr400
06-28-2008, 04:24 AM
Ive just got the engine back together & in my 74 ATC90 after fixing a couple problems.
But now I have a crankcase pressure problem. If you run it for a few seconds, then turn it off & take the dipstick out, allot of air pressure comes out.
If I leave it like that it will blow a gasket So do you know where the crank case breather is? We have never had this problem on any of out ATC's & dont really know where to start looking. Its just a pain cause everything is all back in finished. Dont want to take the engine out again. But, we have to fix this......
On more modern bike engine's they have a big crank case breather hose sticking out the top of the engine. But this is completely sealed.
If we cant work it out we could just make a breather pipe that fits into the inlet tappet cover. Screw a small fitting into the center & have a rubber breather hose go up & hide it away. That will solve the problem. But its not fixing the problem.
What do you reckon?
Thanks for you help!!
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One more thing, this whole forum site is very hard to work out where to post what. I dont know if the forum discriptions are suppose to be funny or what!? What ever they are, they sure do put me off posting here often.
Im not even sure if I have posted this in the rite one.
But now I have a crankcase pressure problem. If you run it for a few seconds, then turn it off & take the dipstick out, allot of air pressure comes out.
If I leave it like that it will blow a gasket So do you know where the crank case breather is? We have never had this problem on any of out ATC's & dont really know where to start looking. Its just a pain cause everything is all back in finished. Dont want to take the engine out again. But, we have to fix this......
On more modern bike engine's they have a big crank case breather hose sticking out the top of the engine. But this is completely sealed.
If we cant work it out we could just make a breather pipe that fits into the inlet tappet cover. Screw a small fitting into the center & have a rubber breather hose go up & hide it away. That will solve the problem. But its not fixing the problem.
What do you reckon?
Thanks for you help!!
.
.
.
.
.
.
One more thing, this whole forum site is very hard to work out where to post what. I dont know if the forum discriptions are suppose to be funny or what!? What ever they are, they sure do put me off posting here often.
Im not even sure if I have posted this in the rite one.