1 Suggestions for replacement thermostat? Tue Jul 18, 2017 9:28 pm
timz10000
Silver member
Haha - after replacing Hall sensors, coils, and rubber boots I find my '85 K100's problem is ... faulty thermostat (the one in the radiator system). I heated mine in a pan of water and it never opened.
I read old forums that said a Toyota Corolla thermostat will work, so I bought one for $8 but I can't get it to seat in correctly. Seems like the gasket around it is possibly too big to fit, and/or the spring (which is longer than the OEM one) is too long, I can't get the plastic cover panel to seat correctly without leaking now.
So I have two questions:
1. Is the Toyota thermostat OK and I'm installing it wrong, or do I need to buy the OEM version (for $70!)
2. How do I look up the O-ring that fits into the roundish plastic housing cover, since I need to replace that too?
I read old forums that said a Toyota Corolla thermostat will work, so I bought one for $8 but I can't get it to seat in correctly. Seems like the gasket around it is possibly too big to fit, and/or the spring (which is longer than the OEM one) is too long, I can't get the plastic cover panel to seat correctly without leaking now.
So I have two questions:
1. Is the Toyota thermostat OK and I'm installing it wrong, or do I need to buy the OEM version (for $70!)
2. How do I look up the O-ring that fits into the roundish plastic housing cover, since I need to replace that too?
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1985 K100