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Old 31st July 2021, 08:44   #151
SD1too
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Originally Posted by dave lincs View Post
It is leaking on the seam by the look of it ....
Hello Dave,

Appearances can be misleading which is why I suggested that it is tested by filling with water on the bench. Did you do that?

Simon
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Old 31st July 2021, 08:49   #152
dave lincs
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Hello Dave,

Appearances can be misleading which is why I suggested that it is tested by filling with water on the bench. Did you do that?

Simon
As I said Simon it was leaking on the seam so I replaced it

Dave
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Old 31st July 2021, 16:37   #153
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Well I have got a thermostat to change today as its leaking on the seam. Let's hope all goes well
Good Luck Dave.
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Old 31st July 2021, 16:49   #154
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Good Luck Dave.
All went well job done in 1.5 hours, the thermostat was leaking on the seam and had been for a while by the look of it
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Old 31st July 2021, 21:29   #155
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All went well job done in 1.5 hours, the thermostat was leaking on the seam and had been for a while by the look of it
Good New. I had the same problem, the thermostat was leaking on the seam.
What are your running temperature now?
Where have you bought your thermostat please?
Thanks you.
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Old 31st July 2021, 21:40   #156
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Good New. I had the same problem, the thermostat was leaking on the seam.
What are your running temperature now?
Where have you bought your thermostat please?
Thanks you.
Running temperatures was about 96oC but I used a thermostat that I had had in stock for quite a while
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Old 14th September 2021, 20:16   #157
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Hi, how did you lubricate your thermostat O-rings? I changed my thermostat to an original one but they broke.
Itís very embarrassing for me, the parts come from England.
I ordered them on dmgrs.
Thank you for your help.
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Old 15th September 2021, 16:38   #158
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Hi, how did you lubricate your thermostat O-rings?
The defacto lubricant for all O-rings is a silicone grease. You can get this stuff specifically formulated for O-rings, but I think it's just a matter of its viscosity. Any silicone grease will be fine. If you don't have silicone to hand, what lube to use depends very much on the type of 'rubber' the rings are made from. Viton and Nitrile rings are OK with petroleum jelly/Vaseline. Rings made from other polymers may not be tolerant to hydrocarbons, so Veseline or lithium grease for example may be unsuitable and may eventually cause the rings to swell/distort. Any supplier worth his salt will tell you what polymer they are. You can then check lubricant compatibility using on-line rubber compatibility charts. Since engines have replaceable O-rings all over the place, it's best to buy a small tube/tub of a silicone based O-ring Lubricant or a vegetable oil based 'Rubber Lubricant'. It'll last you longer than the engine.
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Old 15th September 2021, 20:27   #159
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Red rubber grease is always useful in your tool box
https://www.ebay.co.uk/itm/293782016...wAAOSwsVVfhvks
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Old 15th September 2021, 21:33   #160
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Red rubber grease
A vegetable oil (probably castor oil) gelled with an inert clay or earth. Dyed red to discriminate from other grease types.


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