The Ford Barn

offy19 · 07-18-2010, 10:51 AM

Any suggestions on procedure on preventing studs or bolts from leaking. Not yet installed. Thanks for the help

Russ/40 · 07-18-2010, 10:57 AM

Yes, "Aviation Permatex" on the threads. The non hardening kind. It is the best. Better than the teflon thread sealers. Take a q-tip and smear it in the threads in the block, as well as in the threads of the studs or bolts.

CWPASADENA · 07-18-2010, 11:44 AM

Quote:

Originally Posted by Russ/40

Yes, "Aviation Permatex" on the threads. The non hardening kind. It is the best. Better than the teflon thread sealers. Take a q-tip and smear it in the threads in the block, as well as in the threads of the studs or bolts.

I AGREE;

Have been using Non-Hardening Permatex for years,

Definately DO NOT use Teflon Tape.

Chris

Mick/mo · 07-18-2010, 11:55 AM

Most will stop weeping after they get the heads looking bad. Mine did.

offy19 · 07-18-2010, 01:52 PM

Thanks Russ/40 sounds like good advise. I will let you know how well it works for me. (I tried the teflon thread sealer last time with poor results)

Russ/40 · 07-18-2010, 02:03 PM

Sponsored Links (Register now to hide all advertisements)

I tried the liquid Teflon sealers with miserable results. Never again. If you do get any temporary seepage, be sure to wipe it off your newly painted heads before you get any stains.

Pete · 07-18-2010, 05:01 PM

I use high temp RTV..Apply and let dry for 20 minutes before installing the stud finger tight.

Walt Dupont--Me. · 07-18-2010, 05:16 PM

The bolts don't usually have any trouble on the 8BA style engine, but the studs and nut on the older engines. After puting some kind of sealer on the studs in the block, If you have a few nuts that don't seem to want to seal after a couple of retorquing, remove the nuts and put some RTV on the threads of the stud and retorque the nuts. ther'll stop leking. Walt

Barry-ct · 07-18-2010, 05:34 PM

I've always used Indian Head shellac on the flatty head bolts with no problems. They come back out just fine if I have to remove them ( just replaced a sticky valve and head gasket ) . Seal up and no leaks.

Barry

50 F-1

Joe KCMO · 07-19-2010, 11:14 AM

I used thread sealant purchased at my local Menards. It contained kevlar and is good to 400 degrees. All characteristics of the expensive permatex brands except 20 times cheaper. 16oz for about $3.

Ronnie · 07-19-2010, 05:02 PM

http://www.amazon.com/Permatex-80019.../dp/B000HBM3QQ

4 oz. for $6.74 You shouldn't be fixing cars if you think that is expensive.

Joe KCMO · 07-19-2010, 05:21 PM

I agree get out if you are not willing to pay. But I do not like to waste money. As a chemist, I do not like paying for exact same ingredients just because of a proprietary name. Excedrin/acetomenophen exact same thing only more expensive. Sorry bad habit of mine.

Also when I researched the permatex you mentioned it is a gasket material, not intended as a thread sealant. The recommended permantex thread sealant (by permatex)was $6 for 0.2 ounce.

This is the permatex sealant correct for the application :

http://www.permatex.com/products/Aut...ad_Sealant.htm

Ronnie · 07-19-2010, 09:08 PM

Read spec sheet threaded connections been used on head bolts for eons I and many others here have used it many times you should try it. Yours is aerobic this is not.That attributes to cost.

http://ecx.images-amazon.com/images/I/71QGd47zJIS.pdf

Dee Jay · 07-19-2010, 09:21 PM

When I read some of these threads on rebuilding the old engines I think back to the days when we ran the things as daily transportation. If the engine needed an overhaul it was done over the weekend because you needed to get to work on monday. Due to lack of time and or funds,necessity became the mother of invention. Head gaskets were reused,gooped up with permatex aviation sealer. For other gaskets we had three choices of thickness,calendar page,cereal box or shoe box. If a poured bearing was loose and out of shims,you filed the cap. I once took all four throws of a crank down .020 using a flat file and emory tape. That engine is still running. It's surprising how you can make do when you have to.

joe plumber · 07-19-2010, 09:28 PM

Quote:

Originally Posted by Barry-ct

I've always used Indian Head shellac on the flatty head bolts with no problems. They come back out just fine if I have to remove them ( just replaced a sticky valve and head gasket ) . Seal up and no leaks.

Barry

50 F-1

I agree with Barry.Good Stuff.

Joe KCMO · 07-19-2010, 10:11 PM

I did mean to get into an argument with Ronnie. I respect everyone who contributes to this site. I thought that I might contribute an inexpensive alternative to an old problem. I have used Indian Head Shelac for more than 50 years for mostly gaskets. My bottle dried up and as above I wanted to fix the problem before Monday. I was just saying that this new stuff is cheap and works quite well. Kevlar is quite amazing stuff.

Ronnie · 07-19-2010, 10:41 PM

I don't think it was an argument just a good old discussion about a couple of chemicals that both seem to be accepted as a good way to seal head bolts.
Speaking of things that work well did you know that MALOX works quite well as an anti seize on nuts and bolts. Pam cooking spray for a weld spatter. Candle wax and heat for stud removal. We should start a thread for obscure uses of well known chemicals and their uses. I bet you could name many due to your background.Keep on posting your turn.

Regards

Ronnie

Pete · 07-19-2010, 10:59 PM

" Pam cooking spray for weld spatter."
Another well known use of Pam is to keep mud from sticking to the car.
Very popular among the sprint car racers..They have a product called Mudoff but Pam is a whole bunch cheaper.
Very few people drive their A's in bad weather any more but it is something to keep in mind. Makes cleaning the car up a whole lot easier.
It won't hurt the paint.

07-18-2010, 10:51 AM	#1
offy19 Member Join Date: Jul 2010 Posts: 35	weeping head bolts or sduds Any suggestions on procedure on preventing studs or bolts from leaking. Not yet installed. Thanks for the help

07-18-2010, 10:57 AM	#2
Russ/40 Senior Member Join Date: May 2010 Location: Santee, California Posts: 3,505	Re: weeping head bolts or sduds Yes, "Aviation Permatex" on the threads. The non hardening kind. It is the best. Better than the teflon thread sealers. Take a q-tip and smear it in the threads in the block, as well as in the threads of the studs or bolts.

07-18-2010, 11:55 AM	#4
Mick/mo Member Join Date: May 2010 Location: Rock Port Mo. Posts: 65	Re: weeping head bolts or sduds Most will stop weeping after they get the heads looking bad. Mine did.

07-18-2010, 01:52 PM	#5
offy19 Member Join Date: Jul 2010 Posts: 35	Re: weeping head bolts or sduds Thanks Russ/40 sounds like good advise. I will let you know how well it works for me. (I tried the teflon thread sealer last time with poor results)

07-18-2010, 02:03 PM	#6
Russ/40 Senior Member Join Date: May 2010 Location: Santee, California Posts: 3,505	Re: weeping head bolts or sduds Sponsored Links (Register now to hide all advertisements) I tried the liquid Teflon sealers with miserable results. Never again. If you do get any temporary seepage, be sure to wipe it off your newly painted heads before you get any stains.

07-18-2010, 05:01 PM	#7
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,407	Re: weeping head bolts or sduds I use high temp RTV..Apply and let dry for 20 minutes before installing the stud finger tight.

07-18-2010, 05:16 PM	#8
Walt Dupont--Me. Senior Member Join Date: May 2010 Location: Gardiner Me. Posts: 4,200	Re: weeping head bolts or sduds The bolts don't usually have any trouble on the 8BA style engine, but the studs and nut on the older engines. After puting some kind of sealer on the studs in the block, If you have a few nuts that don't seem to want to seal after a couple of retorquing, remove the nuts and put some RTV on the threads of the stud and retorque the nuts. ther'll stop leking. Walt

07-18-2010, 05:34 PM	#9
Barry-ct Senior Member Join Date: May 2010 Location: Newington, Connecticut Posts: 1,374	Re: weeping head bolts or sduds I've always used Indian Head shellac on the flatty head bolts with no problems. They come back out just fine if I have to remove them ( just replaced a sticky valve and head gasket ) . Seal up and no leaks. Barry 50 F-1

07-19-2010, 11:14 AM	#10
Joe KCMO Senior Member Join Date: May 2010 Location: Miami, Florida Posts: 423	Re: weeping head bolts or sduds I used thread sealant purchased at my local Menards. It contained kevlar and is good to 400 degrees. All characteristics of the expensive permatex brands except 20 times cheaper. 16oz for about $3.

07-19-2010, 05:02 PM	#11
Ronnie Senior Member Join Date: May 2010 Location: Canada Where it snows Posts: 2,058	Re: weeping head bolts or sduds http://www.amazon.com/Permatex-80019.../dp/B000HBM3QQ 4 oz. for $6.74 You shouldn't be fixing cars if you think that is expensive.

07-19-2010, 05:21 PM	#12
Joe KCMO Senior Member Join Date: May 2010 Location: Miami, Florida Posts: 423	Re: weeping head bolts or sduds I agree get out if you are not willing to pay. But I do not like to waste money. As a chemist, I do not like paying for exact same ingredients just because of a proprietary name. Excedrin/acetomenophen exact same thing only more expensive. Sorry bad habit of mine. Also when I researched the permatex you mentioned it is a gasket material, not intended as a thread sealant. The recommended permantex thread sealant (by permatex)was $6 for 0.2 ounce. This is the permatex sealant correct for the application : http://www.permatex.com/products/Aut...ad_Sealant.htm Last edited by Joe KCMO; 07-19-2010 at 05:28 PM.

07-19-2010, 09:08 PM	#13
Ronnie Senior Member Join Date: May 2010 Location: Canada Where it snows Posts: 2,058	Re: weeping head bolts or sduds Read spec sheet threaded connections been used on head bolts for eons I and many others here have used it many times you should try it. Yours is aerobic this is not.That attributes to cost. http://ecx.images-amazon.com/images/I/71QGd47zJIS.pdf

07-19-2010, 09:21 PM	#14
Dee Jay Member Join Date: May 2010 Posts: 56	Re: weeping head bolts or sduds When I read some of these threads on rebuilding the old engines I think back to the days when we ran the things as daily transportation. If the engine needed an overhaul it was done over the weekend because you needed to get to work on monday. Due to lack of time and or funds,necessity became the mother of invention. Head gaskets were reused,gooped up with permatex aviation sealer. For other gaskets we had three choices of thickness,calendar page,cereal box or shoe box. If a poured bearing was loose and out of shims,you filed the cap. I once took all four throws of a crank down .020 using a flat file and emory tape. That engine is still running. It's surprising how you can make do when you have to.

07-19-2010, 10:11 PM	#16
Joe KCMO Senior Member Join Date: May 2010 Location: Miami, Florida Posts: 423	Re: weeping head bolts or sduds I did mean to get into an argument with Ronnie. I respect everyone who contributes to this site. I thought that I might contribute an inexpensive alternative to an old problem. I have used Indian Head Shelac for more than 50 years for mostly gaskets. My bottle dried up and as above I wanted to fix the problem before Monday. I was just saying that this new stuff is cheap and works quite well. Kevlar is quite amazing stuff.

07-19-2010, 10:41 PM	#17
Ronnie Senior Member Join Date: May 2010 Location: Canada Where it snows Posts: 2,058	Re: weeping head bolts or sduds I don't think it was an argument just a good old discussion about a couple of chemicals that both seem to be accepted as a good way to seal head bolts. Speaking of things that work well did you know that MALOX works quite well as an anti seize on nuts and bolts. Pam cooking spray for a weld spatter. Candle wax and heat for stud removal. We should start a thread for obscure uses of well known chemicals and their uses. I bet you could name many due to your background.Keep on posting your turn. Regards Ronnie

07-19-2010, 10:59 PM	#18
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,407	Re: weeping head bolts or sduds " Pam cooking spray for weld spatter." Another well known use of Pam is to keep mud from sticking to the car. Very popular among the sprint car racers..They have a product called Mudoff but Pam is a whole bunch cheaper. Very few people drive their A's in bad weather any more but it is something to keep in mind. Makes cleaning the car up a whole lot easier. It won't hurt the paint.