Coolant dripping from exhaust ports Part 2

Bracket Talk

This topic can be found at:
https://drr.infopop.cc/eve/forums/a/tpc/f/80760912/m/2907043086

March 01, 2018, 05:30 PM

HS professor

Coolant dripping from exhaust ports Part 2

Well found the problem and this one has to be a first

Three header bolt holes have sprung a leak !!!!

Got the header off and pressurized the system and its coming from the header bolt holes. Stuck the scope in there and you can clearly see it has corroded away. These heads are only a few years old Super Angry

Our header bolts only go about 3/4 of the way into the threads so a longer bolt will help. Any ideas on what to use as a sealant ???

I'm thinking maybe some 2 part epoxy and a slightly oily bolt ?????

Ideas welcome ...........

March 01, 2018, 05:38 PM

TOP38

I'd use a hi temp silicon sealer on the treads. I'd bet that would seal it up and also let you easily disassemble when needed.

March 01, 2018, 05:52 PM

M120

Permatex #2

Good luck!

March 01, 2018, 05:58 PM

Bad News

What the heck is silicon? Oh yeah computer chips are made out of it. SILICONE yes an "E"

Dally a little epoxy, JB, or even silicone, in the bottom of the hole with a q-tip, put a very short allen set screw in the hole. Then you do not have to worry about sealing the holes ever again.

March 01, 2018, 06:01 PM

SCDIV1

Install studs with sealer instead of bolts after you clean and blow out the holes. You could use an epoxy like JB weld. Let it all cure good before trying it. The stuff is tough and can take heat.

March 01, 2018, 06:26 PM

diceman1530

They make a high heat JB weld too.

March 01, 2018, 06:49 PM

NFC

This

I hade a dart little m that one of the timing cover bolts went into water.
https://sdparts.com/i-20078111...1EAQYASABEgJ_sfD_BwE

March 01, 2018, 07:53 PM

markemark

You want Loctite 567. Grainger carries it .

Loctite 567

March 01, 2018, 11:01 PM

Wooley

My brodix small block heads have the same issue on two exh bolt holes. No room for studs so just use ultra black silicone and haven't had any problems with it holding up.

March 04, 2018, 06:57 AM

HS professor

Thanks for all the replies ....

I ended up using JB weld on a q-tip to cover up the leaking pin holes, let that dry for a day then used a 1/4" longer header bolt and Ford gray silicone on the bolts.

If that don't fix it, nothing will

Gonna fire it up again today

March 04, 2018, 07:59 AM

Curly1

quote:
Originally posted by HS professor:
Thanks for all the replies ....

I ended up using JB weld on a q-tip to cover up the leaking pin holes, let that dry for a day then used a 1/4" longer header bolt and Ford gray silicone on the bolts.

If that don't fix it, nothing will

Gonna fire it up again today

I think that is the best way and it should work fine.

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March 13, 2018, 05:25 PM

J178RED

quote:
Originally posted by HS professor:
Thanks for all the replies ....

I ended up using JB weld on a q-tip to cover up the leaking pin holes, let that dry for a day then used a 1/4" longer header bolt and Ford gray silicone on the bolts.

If that don't fix it, nothing will

Gonna fire it up again today

Did fix work got a friend with the same problem....

March 14, 2018, 07:35 AM

Brktracer

The end bolts go into the water on SB Mopar (if I recall correctly). I used teflon tape and it worked great.

March 14, 2018, 08:41 PM

HS professor

quote:
Did fix work got a friend with the same problem....

Yes it did. Had it running a few times and it holds pressure just fine. Loaded up and heading to VMP for the big test lol

March 22, 2018, 12:11 AM

J178RED

quote:
Originally posted by HS professor:
quote:
Did fix work got a friend with the same problem....

Yes it did. Had it running a few times and it holds pressure just fine. Loaded up and heading to VMP for the big test lol

Fixed got done last week Friday night will know if it works thanks