engine thermostat removal

newbe911 · 09-12-2006, 01:20 PM

On an 82 SC what has to be removed to replace the engine oil thermostat (the one on the top of the engine). I will replace the temperature sender that is next to it at the same time.

ruf-porsche · ruf-porsche's Garage

Partial engine drop

or if you are really adventurous a full engine drop.

And don't forget about the oil pressure sender for the idiot light, that is more critical for stopping leaks.

newbe911 · 09-12-2006, 01:36 PM

I suspected as much, I was just hoping I wouldn't have to do that. Thanks.

Freybird · Freybird's Garage

I did the t-stat replacement on my '86 with niether full nor partial drop. I'm a rather skinny dude (ectomorph) however. Small shop light and a 3" telescoping mirror were boons to the proceedure. Do a search here for oil thermostat and relish your bonding time!

ruf-porsche · ruf-porsche's Garage

Quote:

Originally posted by Freybird
I did the t-stat replacement on my '86 with niether full nor partial drop. I'm a rather skinny dude (ectomorph) however. Small shop light and a 3" telescoping mirror were boons to the proceedure. Do a search here for oil thermostat and relish your bonding time!

He has an 82 SC which has the CIS system and not the motronic system. A little more room back there with the motronic compare to a CIS.

I replace the oil pressure sender on my 74 911 with out a partial drop, but did remove the complete cis system inorder to access the back of the engine. I think that was more work and more parts (new gasket for the intake runners).

Why are you replacing the thermostat? Is it leaking, or does the engine run hot?

newbe911 · 09-12-2006, 01:57 PM

The engine is running hot. I have the optional oil cooler up front the one with fins that replaced the trombone cooler and the oil lines to and from get hot so I know the auxillary thermostat is working. I am planning on adding a fan to the aux. cooler. Texas weather gets WARM sometimes.

ruf-porsche · ruf-porsche's Garage

You maybe doing a lot of work for little or no improvement. Because of your location and temp, the engine will always run hot. If the line to the external cooler are hot, I don't think that replacing the thermostat is going to lower the temperature significantly.

I would add the fan first before considering a thermostat replacement.

newbe911 · 09-12-2006, 02:59 PM

It seems like if the engine thermostat isn't working properly it would not let the engine mounted oil cooler work properly. I do not know how much good the engine cooler actually does - just hoping.

ruf-porsche · ruf-porsche's Garage

The engine mounted oil cooler is not much larger than the front mounted oil cooler. Do you do a lot of stop and go driving or continuous freeway driving? If you do a lot of stop and go driving the fan for the front oil cooler will help, but if you are having this problem with continuous freeway driving you may have to go with a larger front cooler.

newbe911 · 09-13-2006, 07:06 AM

I do not do a lot of stop and go driving but several times I have been caught in freeway bumper to bumper trafic and it got pretty close to the red mark. I may be OK but I don't like pushing it.

cel · 11-05-2010, 01:36 PM

I live on Joann south of cude cemetary rd. may be we can meet sometime.

kidrock · 11-06-2010, 11:29 AM

yeah, it gets hot here in Texas. If you're in stop-n-go traffic and the weather is in the 90's, I wouldn't be surprised if the gauge started topping out. Ruf is right, you'll probably need to make improvements to your auxiliary (front) cooler.

Are you sure your oil is making it up to the front cooler? Have you put your hands on the auxiliary oil lines for a heat check?