thermostat info

[scottg]

can you give me more info about the thermostats.<br />I think I'm am going to tackle them today. What<br />did the service bulletin say?<br /> thanks<br />my local dealer didn't know (or didn't want to bother) where to get the SB's. Sure wish I could <br />find a source for these.

 

[seahorse5]

Re: thermostat info

New black thermostats are already updated from the original white ones. The thermostat seal ring in pressed into a stainless steel cup. Remove the seal, better yet get new ones, and scrape out any salt, sand, or corrosion buildup behind it. Get new rubber diaphragms also. A service bulletin said to remove the stainless steel cup and use a one-piece rubber seal, but a few years later, a new bulletin said to put the old style cup and seal back in.<br /><br />If the powerhead was replaced with a newer style one, you may have late model thermostats and housings installed, which are different from your originals.

 

[scottg]

Re: thermostat info

I pulled the thermostats today. Found the seal on one side worn right to the edge of the SS cup. Hope this was my problem. I pulled both seals out of there cups and cleaned everything up. My question is when I buy new seals do they come with<br />new cups around them? Do I need to remove the cups still in my cylinder heads?<br /><br /> thanks