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11th February 2018, 18:24 | #1 |
Gets stuck in
MG ZT-T 190 Join Date: Feb 2015
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V6 Inlet gasket issue (that old chestnut)
I'm in the process of replacing the inlet gaskets (manifold to heads) on my V6.
Over the years I've done this job a few times, not only on my engine but quite a few on other cars, and I don't think I've seen many that was making a coolant tight seal around the outer inlet ports. I know its been done to death on here but the gaskets I've taken off this time have been leaking coolant to some degree. I was wondering if there have been any strides forward for a cure for this. If there has, I'd very much like to know about it. All the gaskets I use are genuine MGR as they do last longer than the copies I have seen and I observe all the proper procedures like order of bolt tightening and torque figures. I'm thinking that a change in the material of them could be the answer? Steve |
11th February 2018, 18:33 | #2 |
This is my second home
75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007
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A couple of layers of silver garden gate paint on both sides of the gaskets, let dry.
Even torque, problem solved.
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Worth his V8 in gold Last edited by kaiser; 11th February 2018 at 18:35.. |
11th February 2018, 18:34 | #3 |
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MG ZT-T 190 Join Date: Feb 2015
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Ah. Water-proofing the paper?
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11th February 2018, 18:38 | #4 |
Gets stuck in
Rover 75 Connie Tourer & Connie SE Saloon & Club SE Tourer Join Date: Sep 2014
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We don't have that in the UK, is it a specific paint designed for wood or ironwork? Any significance in the 'silver'? Might it be a high zinc content paint?
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11th February 2018, 19:05 | #5 |
This is my second home
75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007
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Aluminium paint has a large part of aluminium flakes in suspension.
I have heard of sucessful re-uses of head gaskets when coated in aluminium paint, but have never tried that. My last set of inlet manifold gaskets got this treatment, and have been trouble-free since then. the problem is that the green material is permeable to water. It is totally unsuited for the application, as there is a pressure gradient from the cooling channel to the inlet at the valve. It is a design that is almost guaranteed to leak because of the high pressure on the water side and the low pressure in the inlet tract. Surely that paint is available in the UK! Nothing special, typical garden variety, - excuse the pun!
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Worth his V8 in gold |
11th February 2018, 19:12 | #6 | |
Gets stuck in
Rover 75 Connie Tourer & Connie SE Saloon & Club SE Tourer Join Date: Sep 2014
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Quote:
We also have zinc-rich paint though some of it has a very limited shelf life even un-opened. The gaskets Rimmers supplied are after-market Britpart ones. I'll make the decision whether to fit as they are or paint them later this week, probably fit as supplied so I can do my own monitoring on their performance. |
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11th February 2018, 19:28 | #7 | |
This is my second home
75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007
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Quote:
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Worth his V8 in gold |
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11th February 2018, 19:31 | #8 |
Gets stuck in
Rover 75 Connie Tourer & Connie SE Saloon & Club SE Tourer Join Date: Sep 2014
Location: Leeds
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11th February 2018, 19:34 | #9 |
This is my second home
75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007
Location: Johannesburg ZA
Posts: 6,200
Thanks: 1
Thanked 859 Times in 613 Posts
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My house is my castle.
No castle without a moat. No moat without a drawbridge. See, logical!! Here we use a garden gate. Dry country!
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11th February 2018, 19:54 | #10 |
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MG ZT-T 190 Join Date: Feb 2015
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Will I never stop decorating.....?
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