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Gaskets and Sealant


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I need to do an oil change soon and am likely to install a windage plate above the sump. I know that the sump and flange have paper gaskets, but I have a tube of Hylomar Blue sealant that I am itching to use and am considering adding a bead to the flange gaskets and the windage plate. Long ago I always added a bead of Permatex gasket sealant when I was working on my old Triumph. I think I did this out of habit and to make it easy to put things back together. On the V11 I have just been using fresh gaskets sans any sealant. Are there any places on these bikes that you add sealant to a gasket? Would be interested to hear how folks approach this. Thanks!

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Seems these sump and valve over gaskets aren't just plain paper.  Not sure what their exact composition is?

I suppose I should replace my original valve cover gaskets at some point. They still don't leak, but are starting to look a little sketchy. I replaced my sump gasket a while back chasing internal "bell housing" leaks. It really wasn't leaking, though.

So, "Hylomar" (or an equivalent) on one side of the gasket to make things easier to take apart later?

[edit: FWIW, the plate is not above the sump, but above the sump spacer, yes?]

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I believe it goes at the top of the spacer. Once installed it would not be disturbed for future oil and filter changes as only the sump comes off.

*by flange I meant the spacer.

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There is probably a Guzzi-specific instruction on this, but I use bare gasket where I want it to stick. Perma-Tex gray or similar would be good there, if any surface irregularities exist. On the opposite surface, I use a very thin layer of synthetic grease on the gasket (i.e. valve cover gasket to head) in cases where it will be removed. If you bond both sides of a gasket, you will almost certainly have to go back in for some as-yet-unknown reason, usually Murphy's law. 

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I used Hylomar on the gaskets when changing the oil/filter on my black frame . Sparingly is the key on anything you put on a gasket . The Permatex anaerobic gasket sealant is a good product too .  There are lots of good products , you just have to know the application . You know when you have used the correct amount when it just oozes out of the mating surfaces .  i have seen rednecks use a whole tube of silicone seal on a timing cover / water pump job !

 I will NEVER use silicone after having to GO BACK through a 1.8l Ford Escort engine after the oil pump / block gasket oozed out and started leaking engine oil . This was a good twenty five years ago and I still have the taste in my mouth !

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3 hours ago, gstallons said:

I used Hylomar on the gaskets when changing the oil/filter on my black frame . Sparingly is the key on anything you put on a gasket . The Permatex anaerobic gasket sealant is a good product too .  There are lots of good products , you just have to know the application . You know when you have used the correct amount when it just oozes out of the mating surfaces .  i have seen rednecks use a whole tube of silicone seal on a timing cover / water pump job !

 I will NEVER use silicone after having to GO BACK through a 1.8l Ford Escort engine after the oil pump / block gasket oozed out and started leaking engine oil . This was a good twenty five years ago and I still have the taste in my mouth !

Why blame the product when it's the poor quality workmanship that caused the issue. Like blaming the hammer because you hit your finger.

Ciao

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Reminds me of pro boxer turned singer Paul Thorn, in his song about fighting Roberto Duran, asking him why he had to hit him so hard, "I'd Rather Be a Hammer Than a Nail"

 :grin:

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I like the Permatex red "High Tack  Gasket Sealer". Have put gaskets on with no sealer and they leaked. Re-did them with new gaskets and that stuff and no leaks. Hopefully I didn't just jinx myself though as I used it on the LeMans valve cover gaskets after a "decent tune-up". Thanks for the procedure docc, she's running fine as ever now.

 

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6 hours ago, Tinknocker said:

I like the Permatex red "High Tack  Gasket Sealer". Have put gaskets on with no sealer and they leaked. Re-did them with new gaskets and that stuff and no leaks. Hopefully I didn't just jinx myself though as I used it on the LeMans valve cover gaskets after a "decent tune-up". Thanks for the procedure docc, she's running fine as ever now.

 

Well if you haven't used Valpolini rocker gaskets then yes, you have jinxed yourself and made a mistake. No selant required with the Valpolini gaskets and no chance of them breaking a section out.

Ciao

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