F355 So, what do the guys with experience have to say about this? - Ferrari Life
 
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post #1 of 9 Old 10-15-2015, 01:11 PM Thread Starter
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So, what do the guys with experience have to say about this?

A 355 came up on ebay today and the service work was done by Classic Coach and my understanding is they are a very knowledgeable shop.

I found this gasket spray interesting. I have zero knowledge or experience with it.

What do you guys think?
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post #2 of 9 Old 10-15-2015, 04:35 PM
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Dave,


I've never used the spray version but have used the Copper Permatex - it is fantastic and all I use now.

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post #3 of 9 Old 10-15-2015, 07:00 PM
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I been using spray permitex sins the early 70s
Never an issue
Worked great on the old metal HGs back then

Offers minor sealing, anti corossion and holds the gasket in place

Disclosure, I make Henkels lab ware so I am biased LOL

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post #4 of 9 Old 10-16-2015, 01:48 AM Thread Starter
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Thanks guys. But, my question is not if this is good stuff. My questions are: What's the purpose / benefit and is this needed?
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post #5 of 9 Old 10-16-2015, 03:55 PM
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Thin even build for close tolerance parts. Holding gaskets in place



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post #6 of 9 Old 10-16-2015, 06:58 PM
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I personally have not seen a ferrari head gasket in real life but i do not think i woukd use it on the heads. From what i have seen the head gasket would be fine on its own. For other gaskets it looks like it would work good.

Sorry though no experience with product.
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post #7 of 9 Old 10-16-2015, 07:04 PM Thread Starter
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I understand holding the gasket in place but with a head gasket you have many bolts to do this so there must be another reason
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post #8 of 9 Old 10-16-2015, 07:09 PM
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Im guessing but maybe if the decks have small scratches in them?
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post #9 of 9 Old 10-17-2015, 05:23 AM
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In the past with composition type head gaskets, there was a good argument for skimming or spraying them.

Today, with elastomer sealing compounds already being applied to high quality head gaskets, the practice of skimming or coating is being discouraged by most manufacturers (of these precoated gaskets), as the skimming/coating compound can sometimes be incompatible with the precoating and/or can interfere with it.

However for old style composition gaskets, I'd think it would still be worthwhile to continue skimming or spraying them.

There's also an argument that the copper based stuff encourages better, more even heat dissipation, and will reduce the possibility of "hot spots" developing? Whether it's true or not, it sounds good from a marketing perspective.

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