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What should go between thermal block under Carburettor?

Posted: 02 Aug 2020, 08:12
by reessi
What should go between thermal block under Carburettor?

So I took my carbs off a month ago and can not remember if there should be something between the thermal block and the manifold pipes?

Should I just grease the thermal block? How will it seal, there is a seal between the carb and thermal block! The kit did not come with another gasket but maybe would burn anyway in the heat? There is a bigger gasket there I could make fit.

I took a load of pictures but there is no option to add pictures on here?

Cheers.

Re: What should go between thermal block under Carburettor?

Posted: 02 Aug 2020, 08:14
by Mocki
what engine ?

add your location, van age and engine to your signature , then all the info to help you will be at the bottom of every post , and we dont have to ask , and you get the info quicker 

Re: What should go between thermal block under Carburettor?

Posted: 02 Aug 2020, 08:50
by reessi
Sorry I've added it now, it is:

Sheffield, England.

VW T25, 1980, CU Engine, Air Cooled.

How do I add pictures? Is there a way or I have to upload to a sharing website, it asks for a URL but surly then they expire and then there will be no pictures on this forum after a few months!

Cheers

Re: What should go between thermal block under Carburettor?

Posted: 02 Aug 2020, 08:59
by Mocki
Image

Re: What should go between thermal block under Carburettor?

Posted: 02 Aug 2020, 09:28
by reessi
Ah ok, it is confusing because there is an icon labeled image but only asks for a URL!

The last picture shows that one of the gaskets could be made to fit if there is meant to be one under the thermal block?ImageImageImage

Re: What should go between thermal block under Carburettor?

Posted: 03 Aug 2020, 06:43
by sarran1955
Hello,


For the term 'thermal block' I willl use bakelite spacer.

Use a paper gasket on either side, so 4 per pair of carbs..

Mounted DRY...no Goop.. :roll:

Easily available on line..

Air-Cooled Bliss... 8)

 

Re: What should go between thermal block under Carburettor?

Posted: 03 Aug 2020, 07:42
by davidoft1
The spacer( phenolic,Is a thermal barrier) has a gasket on either side , the gasket is very thin and it looks like they are still on , the gaskets won’t come in an engine rebuild kit , they are part of the carb rebuild kit

Re: What should go between thermal block under Carburettor?

Posted: 03 Aug 2020, 11:16
by reessi
Ok thanks, I'll use the 2 in the picture. I can make the one that is slighlty bigger fit. So the heat won't affect the gasket under the thermal block?

Re: What should go between thermal block under Carburettor?

Posted: 03 Aug 2020, 12:46
by tobydog
Not related to the insulator block, check the screws holding the flange above it to the carb body.  I've found them loose in the past :)