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Old 05-02-2013, 01:41 PM
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Vorsicht
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Originally Posted by axl911
If you haven't already, just change out the guts of the thermostat for a new one? When mine failed, it looked fine, there is no visual indication of it failing but it did. And when thermostat fail, if you don't pay attention, the engine can overheat quickly.

A failed thermostat definitely shortens an engine life. Mine caused my valve guide to go bad in a very short time even after replacing the thermostat.
How do these internals fail? Does the spring loose compression, tension. Can someone explain how this works? I had assumed heat would cause things to expand thus moving the plunger but I'm not sure.

I have another thermostat with only 51K on it. Perhaps I will use internals from that one.
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Old 05-02-2013, 02:49 PM
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Answered my own question. Since I have this apart I'm gonna replace the springs, regulator and o-ring, It seems the springs are the most likely to fail. Cheap insurance.
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Old 05-03-2013, 08:46 PM
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Cleaning......
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Old 05-03-2013, 08:48 PM
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What cleaning fluid are you using in your parts cleaner?
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Old 05-03-2013, 08:50 PM
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Cleaning cam tower spray bar. Notice the six streams - this is what you want...
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Old 05-03-2013, 08:53 PM
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Originally Posted by trophy
What cleaning fluid are you using in your parts cleaner?
7 parts kerosine to 1 part Gunk Super Concentrate. Works well.
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Old 05-03-2013, 08:57 PM
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My cleaning routine is:

1. Parts Washer
2. Cold water rinse.
3. Very hot soapy water clean, rinse.
4. Compressed air.
5. Alcohol/carb cleaner w/ kimtech wipes (prior to assembly).
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Old 05-03-2013, 08:57 PM
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Perfect, thanks.

I got lazy and sent all the hard parts (cam towers, case etc) off to Ollies for cleaning. I will do the final glory clean myself
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Old 05-03-2013, 08:59 PM
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Good cleaning process.. Are you finding and metal fragments?
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Old 05-03-2013, 09:28 PM
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Originally Posted by trophy
Good cleaning process.. Are you finding and metal fragments?
Honestly, no. Not in the cam towers but the particles might be so small that I can't see them. I will take a magnet and see what I can pick up in the parts washer.

I remember there was some grey mystery sludge in the case. Hopefully, Ollies will get everything out with the hot tank.
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Old 05-03-2013, 09:42 PM
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It is looking good. I gtook the easy way out and shipped my stuff out as well. The case arrived at Steve's today,so now the wait begins.

Emerald
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Old 05-03-2013, 09:48 PM
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Originally Posted by e3photo
It is looking good. I gtook the easy way out and shipped my stuff out as well. The case arrived at Steve's today,so now the wait begins.

Emerald
Emerald, what's the mileage on your engine? Did you notice any fretting on your case mating surfaces?
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Old 05-03-2013, 10:30 PM
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My case came back looking great, I haven't opened it up since I received is as I was measuring the bore for clearances.
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Old 05-03-2013, 10:34 PM
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I have everything ordered, or underway now. just waiting on the following pieces, then assembly will begin.
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Old 05-04-2013, 01:10 PM
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Here is a confession.....I see stuffed my cam towers into the dish washer as a final wash. They can out great!!!!!
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