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Tech Talk => Engine Mechanical / Electrical => Topic started by: drogers87 on May 10, 2017, 04:36:04 PM

Title: Header gasket/ exhaust leak?
Post by: drogers87 on May 10, 2017, 04:36:04 PM

Well... I went looking for a problem and may have found one. Unnoticed a black spot on the carpet inside the engine cover.  Not remembering that in the past, looked below on the logs and found a black "spray" mark on the front port between the head and manifold. Looks like the gasket got a little black and possibly exhaust leaking out?

Just had the heads gone through 10 months ago, fresh gaskets etc...

Serious? Maybe a new gasket and a little extra liquid gasket? I'm open to ideas

Dan


I'm here for moral support

Title: Re: Header gasket/ exhaust leak?
Post by: mash on it on May 10, 2017, 05:25:26 PM

I have never used a gasket on logs.

Ultra Black RTV and let it dry for a good while. even over night, before puting it back on.

Check the header flange for any warping.

Always re-torque after a hot/cold cycle.

Dan'l

Title: Re: Header gasket/ exhaust leak?
Post by: el mojado on May 10, 2017, 05:26:40 PM

Use copper RTV. No gasket.

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Title: Re: Header gasket/ exhaust leak?
Post by: drogers87 on May 10, 2017, 06:03:54 PM

Thanks for the replies! Rtv it is. See any problem running like this? Trying to figure if I can get the log off and fixed before the next trip...


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Title: Re: Header gasket/ exhaust leak?
Post by: mash on it on May 10, 2017, 10:45:44 PM

Quote from: drogers87 on May 10, 2017, 06:03:54 PM

Thanks for the replies! Rtv it is. See any problem running like this? Trying to figure if I can get the log off and fixed before the next trip...


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Do yourself a favor and fix it before the next trip, that al-u-minium is pretty soft and WILL just eat out more.

it's eight ( 8 ) bolts and a hose clamp. maybe 2 hose clamps. Nike- Just do it.

Dan'l

Title: Re: Header gasket/ exhaust leak?
Post by: southwind011 on May 10, 2017, 10:52:35 PM

I just put in copper gaskets. Took me 30 mins and did it at the river in the morning before going on the water.

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Title: Re: Header gasket/ exhaust leak?
Post by: mattson on May 11, 2017, 06:59:12 AM

Ultra black is the best.

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Title: Re: Header gasket/ exhaust leak?
Post by: drogers87 on May 11, 2017, 08:32:38 AM

Thanks again for the help guys, I really appreciate it. Sounds simpler than I was imagining. Going to get it done this weekend!


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Title: Re: Header gasket/ exhaust leak?
Post by: drogers87 on May 18, 2017, 04:45:52 PM

Took the headers off and saw a little valley on the face of the header. Not sure how that surface gets worn. Looks like the mechanics that installed the header added a little extra liquid gasket to compensate.

I'm guessing a little extra rtv will do the trick unless someone wiser than me thinks otherwise... I guess we will see if that holds. Thanks again for the help all.

Dan




Slow is smooth and smooth is fast