Quote:
Originally Posted by Old Mechanic
First make sure it is bled properly and that it stays bled properly. The bleeding process begins from scratch every time you open up the system. If that does not get it to run cool, make sure the timing is not advanced way beyond specs. Once you get to the point where those two potential issues are corrected, assuming they need correction, then have the coolant tested for head gasket leakage combustion by products.
If you see bubbles in the coolant after it has been bled then suspect the head gasket.
This is why you bleed it repeatedly. If you bleed numerous times and still get bubbles in the coolant, my thinking is suspect the head gasket.
It's possible a restricted exhaust system could be a cause which can also be tested.
Plugged catalytic converter.
Didn't you buy this car from a forum member? Hard to believe the PO did not KNOW about this problem.
On the Suzuki GS 500 forum they are finding that improperly manufactured valve shims are disintegrating and that destroys the engine. The Chinese sell them cheap and now they are wrecking engines.
One of the almost infinite reasons why the cheapest part is rarely the best choice.
regards
mech
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I just bled it again and whenever I apply throttle, the coolant in the tube that's connected to the bleeder turns a whiteish color with micro-bubbles. Also whenever I try to bleed the system it keeps sucking the coolant from the bleeder into the dang recovery bottle. It's extremely aggravating.
How do I check the timing? This car has a timing chain.
No I bought it from a guy on CL. I took it for a 45 min drive the first day I went and looked at it, and it never overheated. Where I bought it from it's generally flat terrain everywhere. Considering it has to be going uphill to get stressed enough to overheat, I'm not really inclined to think he knew, but then again, who knows.
The car has a major exhaust leak where the pipe connects to the cat, it sounds like it's unrestricted.