posted on May, 7 2016 @ 08:57 AM
Going to necro this thread because I need a bit of advice from anyone familiar with the Olds 307 engines.
I'm currently having a heating problem unrelated (as far as I currently know) to the new(er) water pump that I installed when I initially made this
I am about to change the thermostat (starting with the cheapest parts and working up, hoping it isn't a cracked head)....last time I changed it, I
noted that the thermostat housing gasket (pictured below) is solid all the way around, but the housing itself, where the thermostat sits is "hollow",
so that one little strip of gasket in the center where the hole is, seems to be obstructing coolant flow.
Anyone familiar with this? Is this an issue of aftermarket being different than the original?
I know that the housing is a bit different on some of the 307s that I have seen, vs the one I have.
What is the purpose of that section of gasket that I crudely circled there? There is nothing to seal there. It is in "open air" and seems to me that
it restricts flow (or could) and could be cut out of it and wouldn't make a difference on the seal itself. Am I off base on that assumption?
Thanks in advance.
I've not had any luck (as there are various versions) finding a supposed "original" gasket and the one pictured is the only one available now. I
didn't take the original one off, so I don't know if it had that section of gasket there or was "hollow" there and had just the edge.
Hope this makes sense. I know it's a bit here and there and I am writing well here. Forgive me. Whiskey hangovers have that effect sometimes....
Anyways...thanks again to any that come along knowledgeable about this...I know I can always count on you guys and that is why I post here when I need
quick replies vs the pontiac or olds forums (takes a LONG time sometimes to get a reply there)...