6hp exhaust gasket

liz873

Seaman
Joined
Sep 2, 2009
Messages
68
while tuning up motor saw a little steam and water dripping from top of exhaust gasket seal. Oh well time to replace it i guess . I know you need two gaskets -10 bucks each -ouch , but do you put sealant on both sides of the two gaskets? Also if the telltale has a strong stream of water is it safe to say i'm not overheating or do i still check head temp?
 

oldcatamount

Lieutenant Commander
Joined
Apr 4, 2010
Messages
1,740
Re: 6hp exhaust gasket

I use sealant on both sides of those gaskets. It's very important that water is not allowed to get out of it's channel in there. The telltale is merely an indicator the water is reaching the T-stat. You could use a melt stick, an infra red sensor or, I simply touch the head after it's been running for a few minutes. You should be able to touch the head and not get instantly burned. Not scientific, but, it works.
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: 6hp exhaust gasket

On my old 3HP I got tired of buying gaskets, bought a sheet of exhaust gasket material at the local industrial supply house and I make my own, takes a few minutes to cut and form it but it works! Just a thought! Good Luck!:)
 

losnbama

Petty Officer 2nd Class
Joined
Jul 31, 2011
Messages
154
Re: 6hp exhaust gasket

i agree with the captain...if you like the "hands on experience" making gaskets is a lot cheaper than buying them...but get the correct material to suit the application...hi-temp,water resistant,fuel/oil resistant etc...saves money not time tho..but if youre like a lot of us here at iboats, you have more time than money. lol a good set of leather punches and a piece of hardwood(for punch backer) some (white) lithium grease(for marking) a sharp utility knife and youre set...dabb the white grease on the seat of the part...note...(dabbing the grease with your finger makes peaks and valleys on the part which allows for less grease to be used and thus less clean up)...then press the gasket material onto the part firmly to get good detail...let the material dry to the touch and start punching and cutting...a round file makes for super easy edge clean up.i generally leave the grease on the part,makes a snug fit back to the gasket...
 

liz873

Seaman
Joined
Sep 2, 2009
Messages
68
Re: 6hp exhaust gasket

i agree with the captain...if you like the "hands on experience" making gaskets is a lot cheaper than buying them...but get the correct material to suit the application...hi-temp,water resistant,fuel/oil resistant etc...saves money not time tho..but if youre like a lot of us here at iboats, you have more time than money. lol a good set of leather punches and a piece of hardwood(for punch backer) some (white) lithium grease(for marking) a sharp utility knife and youre set...dabb the white grease on the seat of the part...note...(dabbing the grease with your finger makes peaks and valleys on the part which allows for less grease to be used and thus less clean up)...then press the gasket material onto the part firmly to get good detail...let the material dry to the touch and start punching and cutting...a round file makes for super easy edge clean up.i generally leave the grease on the part,makes a snug fit back to the gasket...

Thnx guys, yeah i'm a gasket maker myself even bought the correct marterial to rebuild the original johnson fuel pumps that were discontinued. I found someone online that has the exhaust cover ones for 9 bucks a pair. At that price you cant go wrong. These slotted screws look like their gonna give me a workout getting out. Almost looks like you gotta remove head to get at two of them.
 
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