- This topic has 13 replies, 4 voices, and was last updated 12 years, 6 months ago by
.
- Topic
- Replies
Tried to a block tester but radiator is cross flow and fill neck is right where water is pouring back into the tank so it kept getting contaminated. Going to try again using some clear hose to get the tester away from the water flow if the hose will seal
The parts store should have them. Also pressure test the radiator cap._x000D_
_x000D_
You can also try doing a leak down test and checking for air bubbles on the radiator too.Cap & radiator tested OK. Local parts stores don’t rent leak down testers. I improvised by taking the valve out of my compression checker hose. Ran out of time before I finished but got the left side done. With about 50lbs of air pressure I got no
It doesn’t look good but you might want to purge the air from the system for starters._x000D_
http://www.youtube.com/watch?v=zUpXgAJ1 … mfu_x000D_
_x000D_
After that you might take some coolant out of the radiator before trying the block test again, not allI’ll definitely re-purge the air — did it, still had overheating, flushed, & refilled but went straight to checking for leaks. Will purge & see if I’m still getting the bubbles._x000D_
_x000D_
Assuming I am, how likely is it a compression check would tell meSome compression readings will be within specs on vehicles with some over heating issues._x000D_
_x000D_
If you do indeed have a blown head gasket, usually 2 cylinders side by side will show lower than usual readings.You may not find a head gasket leak with a leak down test but based on your description I think it’s likely you do have a combustion leak into the cooling system somewhere.
Eric i know you are probably right, but I’m going to try re-bleeding it before i pull the heads. If I can avoid the expense of the gaskets I’d like to._x000D_
_x000D_
dreamer22355, the fan s a Derale 16″ and about 2500 cfm if I recall.
- You must be logged in to reply to this topic.