The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 11:30 am 
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Joined: Wed Mar 30, 2011 5:36 pm
Posts: 48
Hi all
Here are the photos of the head off.
The gasket was stuck to the head and when I removed the last stud the head and gasket slid across the block. The first two are the head and block just as they came off.
The rest are when I have wiped the oil and water off to clean the faces.
Image

Image
This one is a close up of the corrosion and its about 2mm deep at one point.
Image



Image
The last one is the bock face wiped off with a rag.
Image
Any advise.
Thanks
Mike.


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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 1:02 pm 
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Joined: Thu Oct 06, 2011 12:13 am
Posts: 2572
Location: The continent
These surfaces will never seal. Both need a skim as far as I can see on the pics. Never seen these this bad.

Jeroen

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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 1:50 pm 
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Joined: Wed May 17, 2017 5:28 pm
Posts: 521
Location: NANTWICH.
Jeroen is right Mike, the corrosion is bad :( you might not be able to skim that out without problems.

Tony.

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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 2:44 pm 
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Future Club member hopefully!
Future Club member hopefully!

Joined: Wed Mar 30, 2011 5:36 pm
Posts: 48
Hi thanks for the advise.
Are you saying the block would need a skim as well or do you think it would clean up with some sort of acid or a cleaner. Because to skim the block would mean a full rebuild really.
Mike.


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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 3:03 pm 
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Joined: Wed May 17, 2017 5:28 pm
Posts: 521
Location: NANTWICH.
Hi Mike, i have sent an email. Tony.

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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 3:30 pm 
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Joined: Sun Oct 26, 2008 7:26 am
Posts: 1921
The block I would try some abrasive paper on a perfectly flat block. Or a wetstone... (block off all oilways etc first though!) It may clean up OK.

The head will need some welding repairs and a skim I reckon. When I was doing my TR7 head gasket the original head had similar corrosion. I found a place who offered some welded repairs plus a skim for about £80, which I thought reasonable enough. Can't find it now of course....but probably similar prices elsewhere (or less than the SE where everything is premium rates often for sub-premium service)

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 Post subject: Re: Head gasket
PostPosted: Tue Nov 27, 2018 4:24 pm 
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Joined: Thu Oct 06, 2011 12:13 am
Posts: 2572
Location: The continent
A used head will be better i think. The valves are very deep in the seats. You actually need new valve seats also. What is the scoring in cilinder 2? If it is some kind of reflection those shiny cilinders are not the best ones. Depends on what you are going to do with your car but seeing these pictures on a big screen now it looks like a very tired engine.

Jeroen

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