how to repair valve cover threads ? - Honda-Tech - Honda Forum Discussion

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how to repair valve cover threads ?

Old 07-13-2018, 12:54 PM
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K-G
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Default how to repair valve cover threads ?

hey guys I took my head to a machine shop a while back and had a valve job done & got a broken stud removed out of the head.
However I think they damaged the threads while removing it because I went to put my valve cover on and come to find out Thereís no threads in the hole, the bolt wonít even catch, it just sinks straight down.
A heal a coil that fits the bolt wonít go into the head because thereís that little sleeve on the top.
Whats the best way to go about replacing threads/fixes ? Iíve never had to do this before
thanks In advance
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Old 07-13-2018, 03:02 PM
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Default Re: how to repair valve cover threads ?

Anybody?
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Old 07-13-2018, 04:12 PM
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Default Re: how to repair valve cover threads ?

Fill it full of jb weld and then drill and tap? Cold weld?

not really sure, haven't really had that problem
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Old 07-14-2018, 12:09 PM
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Default Re: how to repair valve cover threads ?

Originally Posted by hybridnorth View Post
Fill it full of jb weld and then drill and tap? Cold weld?

not really sure, haven't really had that problem
Thatís what my step dad suggested but I was wondering if thereís any other ways besides destroying it and fixing it basically lol.
kinda stumped here because I wanted to get the motor back in but this is holding me up. Ugh
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Old 07-14-2018, 12:12 PM
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Default Re: how to repair valve cover threads ?

A Time-Sert for repair is a possibility. There are specific repair kits made for various model year Hondas.
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Old 07-15-2018, 06:29 AM
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Default Re: how to repair valve cover threads ?

Originally Posted by tech8 View Post
A Time-Sert for repair is a possibility. There are specific repair kits made for various model year Hondas.
thabka for the reply will check into that. Thankfully itís the middle bolt I suppose.
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Old 07-18-2018, 09:03 AM
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Default Re: how to repair valve cover threads ?

That's tough dude. So I've only heard of this once but it's risky since this is a major component to keeping the head and block together tightly.

friend of mine did this and worked for about 2years then sold it so not sure if it worked passed that. Again, risky.

He welded the hole shut completely as solid as he could get it basically like a "fill" and then drilled, tapped and re-threaded it. Again, risky since you never really know how completely filled the hole can be but if you have NO other options, **** it go for it. I've seen worse try and get done but it's your motor not mine. I'd replace the damn thing with one that threads are good, that's only way you know for sure you'll be good.
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Old 07-18-2018, 09:15 AM
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Default Re: how to repair valve cover threads ?

Definitely read that wrong. Just put some JB-weld and tap it then thread it. Should be fine.
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