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Overflow bottle overflowing, while thermostat housing dry. In GT6 MK1 original euro setup.

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RolandB Avatar
RolandB Roland Beernink
Eindhoven, NB, Netherlands   NLD
Jim,

You might be on to something.
I measured the depth, and compared it to the Cap. And it s very close. (seems 1mm short).
But when putting the cap on you its pushed slightly to the inner ring.. But might not be enough.
I can see marks on the rubber that it’s at least is touching… but might not seal enough for the pressure.
Added some pictures..
I am already in the process of head replacing.. as there was low compression in 2 and 3 .. (so that can’t hurt..).
And I will start searching for other caps.

Lizzard.
Sure It will fit ? you have to share the space with some vintage suitcases back there!
Sorry no Mousehole this year , done that a some years ago. This time its going to be the lake district (cumbria) , is that ok for You ?

Roland

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Lizzard d id
san jose, ca, USA   USA
RolandB Avatar
RolandB Roland Beernink
Eindhoven, NB, Netherlands   NLD
An update, on water overflowing the bottle,

I have spent last week, getting the head of a spare engine i ran into a few month ago..
Drilled out a broken off stud,
And get it machined with new valves, and valve seats are re ground.

I double checked if it is identical as the current head when i removed that, and it was luckaly a perfect match.
Then i ran into a problem i could not get one bolt to reach the torque... (i stopped before i broke something.).
Replaced the (long) studs. and all nuts...

And yesterday i was able to drive it again,
I did a cold compression test (Should be worm I think).
Before compression was average 159 psi (with max 175 and lowest 140).
After compression average is 193 psi (with max 195 and lowest 185)

I was not successful yet in finding a higher radiator cap.
I short drive yesterday 40KM 25Miles. At 30c degrees ,( 86F ?).
The water bottle seemed pretty stable. No overflowing.. just seem to rise a couple of Centimetres. (1 inch or so).
It look like it worked, and the radiator cap does not seem to be replaced.

The holiday seemed to be saved.. (after I fix the Horn which stopped working yesterday)…

Thank you all for your input!
Roland

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J.P.Rap Avatar
J.P.Rap J.P. Rap
Mount Hope, Ontario, Canada   CAN
1976 Triumph 1500 "Donna"
2007 Ford Ranger
Congratulations Roland. Glad to hear you got it figured out. Hope you have a trouble free vacation.

Ive had to repair my horn 4 or 5 times this year and each time it's a different problem. What a PITA.
Cheers



"In this world, you must be oh so smart, or oh so pleasant. Well, for years I was smart. I recommend pleasant." Elwood P. Dowd

Lizzard d id
san jose, ca, USA   USA
In reply to # 1465155 by RolandB Then i ran into a problem i could not get one bolt to reach the torque... (i stopped before i broke something.).
Replaced the (long) studs. and all nuts...
I don't like that , why doesn't it torque up ? You really need to have them all torque up good .


In reply to # 1465155 by RolandB The holiday seemed to be saved.. (after I fix the Horn which stopped working yesterday)…


RolandB Avatar
RolandB Roland Beernink
Eindhoven, NB, Netherlands   NLD
Hi Lizzard ,

I am having trouble understanding my own post too..
What I meant to say was that after I replaced the studs with new studs and new nuts. I was able to get it up to torque perfectly.

Roland

Lizzard d id
san jose, ca, USA   USA

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