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Boogered up LA valve cover bolt hole - Suggestions? #2525144
07/21/18 11:00 PM
07/21/18 11:00 PM
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Posts: 25,048
Texas
GoodysGotaCuda Offline OP
5.7L Hemi, 6spd
GoodysGotaCuda  Offline OP
5.7L Hemi, 6spd

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Texas
I have these J-heads that I'd like to clean up and get ready to put to use and there's this lovely valve cover bolt hole in it.

As you can see, it's pretty rough, but it is just a valve cover bolt, so the required torque is very low. I plan on using studs in the valve cover holes to help keep from working this one much in the future.

What do you think?

IMG_4638.JPG

1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525153
07/21/18 11:22 PM
07/21/18 11:22 PM
Joined: Feb 2003
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Andrewh Offline
master
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I don't know if this would work. I would probably oil up a stud or bolt and then put jb weld all over it and insert it and mash it down till it was stuck in as far as I wanted it to go. clean up any extra around the hole to minimize how much I would have to file off later once it hardened.

if the oil works as it should you could then pull the bolt out and have it already threaded for you.

I might even cut a small lip inside for something the jb weld could hold on to better.

but since you know feets, I might see if he could cut it nicely and press a plug in and cut new threads.

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525160
07/21/18 11:46 PM
07/21/18 11:46 PM
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Posts: 14,889
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Supercuda Offline
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They make something like that called form a thread, but I'd look at a helicoil.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525178
07/22/18 12:22 AM
07/22/18 12:22 AM
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Posts: 35,979
Lincoln Nebraska
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RapidRobert Offline
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Quote:
What do you think?
I'd clean it & JBweld in a stud


live every 24 hour block of time like it's your last day on earth
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525180
07/22/18 12:22 AM
07/22/18 12:22 AM
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Posts: 4,117
Milford, OH
markz528 Offline
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Looks a little big for a helicoil. Probably needs an insert. But I would not do that by hand. Should be done on a mill or at least bolted down on a good drill press. A drill will wander - need to clean up with an end mill in my opinion.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 13.300 @ 101.75 mph
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Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: markz528] #2525183
07/22/18 12:28 AM
07/22/18 12:28 AM
Joined: Jul 2007
Posts: 459
Detroit Michigan
stinger Offline
mopar
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Detroit Michigan
weld it up,drill it and tap it?

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525186
07/22/18 12:33 AM
07/22/18 12:33 AM
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Posts: 1,923
s. e. pa.
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calrobb2000 Offline
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hi

end mill and helicoil


or stud that is larger on one end to thread into over size thread in head

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525203
07/22/18 01:13 AM
07/22/18 01:13 AM
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ohio
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bbtrux Offline
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ohio
drill and tap for a relatively large bolt (3/8, 7/16), cutoff wheel and smooth off excess bolt , and then drill and tap stock size. Did it once on a rearend yoke on a truck, and got away with it. No problem on a low tension valve cover bolt.

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: bbtrux] #2525240
07/22/18 08:51 AM
07/22/18 08:51 AM
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Posts: 19,114
in a cattle trailer down by th...
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Guitar Jones Offline
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Originally Posted By bbtrux
drill and tap for a relatively large bolt (3/8, 7/16), cutoff wheel and smooth off excess bolt , and then drill and tap stock size. Did it once on a rearend yoke on a truck, and got away with it. No problem on a low tension valve cover bolt.


I've done this on a rocker shafts hold down bolt with no problems and I did it by hand.


I raise chickens, so I am literally a chicken tender.

The Scamp is sold, now just two old trucks and one newer one.
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: bbtrux] #2525250
07/22/18 09:18 AM
07/22/18 09:18 AM
Joined: Nov 2004
Posts: 25,048
Texas
GoodysGotaCuda Offline OP
5.7L Hemi, 6spd
GoodysGotaCuda  Offline OP
5.7L Hemi, 6spd

Joined: Nov 2004
Posts: 25,048
Texas
Originally Posted By bbtrux
drill and tap for a relatively large bolt (3/8, 7/16), cutoff wheel and smooth off excess bolt , and then drill and tap stock size. Did it once on a rearend yoke on a truck, and got away with it. No problem on a low tension valve cover bolt.


I went this route this morning but went ahead and tapped the new bigger bolt first. 3/8" bolt is jb welded into the new threads, I think it'll hold pretty well for what it needs to do.

Thanks all. up


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: bbtrux] #2525309
07/22/18 12:06 PM
07/22/18 12:06 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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up yours
Originally Posted By bbtrux
drill and tap for a relatively large bolt (3/8, 7/16), cutoff wheel and smooth off excess bolt , and then drill and tap stock size. Did it once on a rearend yoke on a truck, and got away with it. No problem on a low tension valve cover bolt.


Genius, I have never even thought of that. I will have to remember it.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: Supercuda] #2525325
07/22/18 12:38 PM
07/22/18 12:38 PM
Joined: Nov 2003
Posts: 35,979
Lincoln Nebraska
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RapidRobert Offline
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Me too!


live every 24 hour block of time like it's your last day on earth
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525338
07/22/18 01:19 PM
07/22/18 01:19 PM
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Posts: 14,889
up yours
Supercuda Offline
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I got a set of J heads where one of the exhaust hole holes is similarly messed up, this will fix it


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525433
07/22/18 04:17 PM
07/22/18 04:17 PM
Joined: May 2005
Posts: 4,295
Florida
BDW Offline
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Florida
So your drilling the stud? What keeps that in place and not spinning?

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: BDW] #2525444
07/22/18 04:39 PM
07/22/18 04:39 PM
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Posts: 14,889
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Supercuda Offline
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Originally Posted By BDW
So your drilling the stud? What keeps that in place and not spinning?


Missed this did you?

Quote:
3/8" bolt is jb welded into the new threads


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: GoodysGotaCuda] #2525446
07/22/18 04:47 PM
07/22/18 04:47 PM
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Hamtramck, PA
Alaskan_TA Offline
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This works for antique furniture with worn out holes for caster wheels too.

Over drill the hole, apply glue to a dowel of the same species, tap in, trim flat.

When the glue is try you can re-drill the correct size hole for the caster wheel.

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: BDW] #2526525
07/24/18 05:26 PM
07/24/18 05:26 PM
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Posts: 74,128
U.S.S.A.
JohnRR Offline
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Originally Posted By BDW
So your drilling the stud? What keeps that in place and not spinning?


It should stay in place because the drill bit is spinning the same direction the bolt was threaded in. Same rule applies when tapping the new hole .


running up my post count some more .
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: Alaskan_TA] #2526541
07/24/18 05:51 PM
07/24/18 05:51 PM
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Posts: 2,094
central texas
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krautrock Offline
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central texas
Originally Posted By Alaskan_TA
This works for antique furniture with worn out holes for caster wheels too.

Over drill the hole, apply glue to a dowel of the same species, tap in, trim flat.

When the glue is try you can re-drill the correct size hole for the caster wheel.


i've also done the exact same process with a hardwood dowel rod in the maple neck on my bass guitar...40yrs of people pulling the neck off for various reasons..

Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: krautrock] #2526552
07/24/18 06:03 PM
07/24/18 06:03 PM
Joined: Dec 2009
Posts: 19,114
in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
Originally Posted By krautrock
Originally Posted By Alaskan_TA
This works for antique furniture with worn out holes for caster wheels too.

Over drill the hole, apply glue to a dowel of the same species, tap in, trim flat.

When the glue is try you can re-drill the correct size hole for the caster wheel.


i've also done the exact same process with a hardwood dowel rod in the maple neck on my bass guitar...40yrs of people pulling the neck off for various reasons..


Wood glue and tooth picks work for that and it's a lot easier.


I raise chickens, so I am literally a chicken tender.

The Scamp is sold, now just two old trucks and one newer one.
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Boogered up LA valve cover bolt hole - Suggestions? [Re: Guitar Jones] #2526557
07/24/18 06:13 PM
07/24/18 06:13 PM
Joined: Jan 2003
Posts: 2,094
central texas
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krautrock Offline
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central texas
Originally Posted By Guitar Jones
Originally Posted By krautrock
Originally Posted By Alaskan_TA
This works for antique furniture with worn out holes for caster wheels too.

Over drill the hole, apply glue to a dowel of the same species, tap in, trim flat.

When the glue is try you can re-drill the correct size hole for the caster wheel.


i've also done the exact same process with a hardwood dowel rod in the maple neck on my bass guitar...40yrs of people pulling the neck off for various reasons..


Wood glue and tooth picks work for that and it's a lot easier.


i did that once or twice and it didn't last, ended up just doing it better to be done with it. a maple dowel and then redrill the hole and bolt the neck back on nice and tight.

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