When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It probably is not a bad idea, but in moderation. You plug a line and well, all hell is going to break loose. I am not sure I would use that particular Permatex. If you are dealing with coolant and oil, there is more specialized stuff for the oil. I would do nothing more than a thin ring around each of the holes. Give it plenty of room to run as you squish it all together.
First what does the manual say? I follow Jaguar's recommendations unless there is a reason?
.
.
.
The reason for longer life just like the upgrade pipes/coupler If you want to follow Jaguar recommendations on everything they probably would not recommended the aluminum pipes the Eaton coupler your ordered please return those and replace with OEM Jaguar recommendations only
The manual does not call for sealant. Just clean the surfaces of the block and the cooler flange or as the manual says " clean and free of foreign material" .
Don't take this the wrong way, but I would suggest you read more and post less.
But to answer your question, no, the Permatex isn't needed. If your gasket leaks after install it's either user error or secondary to some other catastrophic failure.
I am afraid I have already used it kind of regret it because it was not necessary and have already put everything back together so too late now I applied a thin coat hopefully nothing goes wrong
The only thing i use if anything is permatex aviation seal. Also known as perfect seal or motorcraft liquid seal. Silicone is normally used as a gasket maker not a dressing in low pressure water situations. Some say for oils but i never had luck except for valve covers
Thank you Jaaag_drivah!
Again why do you think your improving anything? There are zero reports of that gasket failing?
Anytime I get into a car that is slathered with Silicon I know the guy was a hack. Please, please follow the manufactures recommendations UNLESS there is a reason not too??
Your example of the upgraded metal cooling pipes is good example. We have hundreds of threads on these failing and causing complete engine destruction and thousands if not ten's of thousands of dollars in repairs. So yes in that case it's entirely justified.
But do some searches BEFORE posting and you will see that gasket is not a known or even a reported problem. You have enough repairs and maintenance to do without making things worse by "improving" something that does not need it?
.
.
.
Thank you Jaaag_drivah!
Again why do you think your improving anything? There are zero reports of that gasket failing?
Anytime I get into a car that is slathered with Silicon I know the guy was a hack. Please, please follow the manufactures recommendations UNLESS there is a reason not too??
Your example of the upgraded metal cooling pipes is good example. We have hundreds of threads on these failing and causing complete engine destruction and thousands if not ten's of thousands of dollars in repairs. So yes in that case it's entirely justified.
But do some searches BEFORE posting and you will see that gasket is not a known or even a reported problem. You have enough repairs and maintenance to do without making things worse by "improving" something that does not need it?
.
.
.
Right
No worries I have started an experiment I put some of the sealant gasket maker on an old gasket and a piece of metal clamped them together we will see how it looks in 48 hrs
Last edited by JaguarXJL15; Jun 26, 2024 at 10:16 AM.
Update Looks stable I do not think it will leak did not take much effort to pull it apart I burned both sides to check for heat resistance and it did not melt or fall apart
I will put in a new oil cooler gasket this time with no sealant I will be removing supercharger once again in a couple months to replace SC coupler because the new spring coupler I installed still clunks and shakes when engine is turned off
I dress all these coolant gaskets and other gaskets with Hylomar AF. It never dries, so it can't do the damage of silicon pieces that break off. It holds gaskets in place during assembly so they don't get out of alignment and get destroyed. It makes it easier to remove gaskets later without damage (only applies to non-metal gaskets). And it improves the sealing capabilities of the gaskets. No brainer.
I dress all these coolant gaskets and other gaskets with Hylomar AF. It never dries, so it can't do the damage of silicon pieces that break off. It holds gaskets in place during assembly so they don't get out of alignment and get destroyed. It makes it easier to remove gaskets later without damage (only applies to non-metal gaskets). And it improves the sealing capabilities of the gaskets. No brainer.
I used Hylomar on race engines, because they were constantly dismantled.
Only thin layer needed to avoid leftover falling inside engine and clocking channels.
I used Hylomar on race engines, because they were constantly dismantled.
Only thin layer needed to avoid leftover falling inside engine and clocking channels.
I plan on using it on o rings such as the oil cooler o ring and other rubber gaskets
Don´t use anything with O-rings exept someting slippery to get them on place if needed. O-ring works best clean and alone. Adding sealant to the O-ring can made an "ridge" between surfaces causing leak.
