Thermostat isn't opening, what to replace?
 

Oil temps is getting hot even though ambient is low and front oil lines to front/center cooler are cold. I see the housing but not sure what needs to be replaced as my manual just shows a pressure relief assembly in there. Any DIY's on it somewhere?

Thanks!

Gary:

If the fender-mounted thermostat is not opening, you should replace the guts of the thermostat;# 930.107.155.00.

You'll need to clean it all off very thoroughly and then carefully open it up. Patience is rewarded, here. :)

Thanks Steve, I found a Tech article over on Rennlist and just ordered the insert from Wayne.. should be here in time for next weekend!

Assumng you have narrowed it down to the external t-stat, you will need the following:

Regulator (930.107.155.00)
Ring seal (900.123.136.30)

The regulator is under the big round threaded cap on the side. You can replace the pressure spring/seal as well (under smaller cap on bottom) "while you're in there" but the problem should be cured with a new regulator.

The pressure spring is PN: 900.280.008.00.
The ring seal is PN: 900.123.075.30.

SmileWavy

EDIT: Dang, I knew I left that "reply" window open too long. Good work Steve!

Thank you Eric, all set now... will report back on the completion and results.

Are those part numbers for Gary's 930 or the SC or are they the same?

same