The Ford Barn

mustang8 · 07-01-2016, 12:28 PM

My exhaust manifolds on my 8Ba are cracked and in bad shape. Are they known for breaking upon removal or do I have a chance at getting these out with minimal problems? Anyone have a suggestion? Thanks. Luke

Charlie Stephens · 07-01-2016, 12:32 PM

Find a replacement before you try taking the old ones off. Probably better than trying to weld yours.

Charlie Stephens

mustang8 · 07-01-2016, 12:35 PM

Im not going to repair them, I bought a replacement set last year already, just wondering how hard they come out.

Dave/Green Bay · 07-01-2016, 02:16 PM

Mustang8:
If your new manifolds don't work out post a picture of originals and I will look in the shed. I see your in Wisconsin come pick up a set, free to good home. Dave/Green Bay

39topless · 07-01-2016, 02:32 PM

You can be assured that the bolts will be a bugger to get out but because you are going to toss the old ones, you can break them apart to get at those stubborn bolts if needed.

mustang8 · 07-01-2016, 02:45 PM

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Im just hesitant to try and take the bolts out. Thanks for the offer!

mustang8 · 07-01-2016, 02:46 PM

Quote:

Originally Posted by 39topless

You can be assured that the bolts will be a bugger to get out but because you are going to toss the old ones, you can break them apart to get at those stubborn bolts if needed.

I just don't want to end up pulling the damn motor to retap or something.

JSeery · 07-01-2016, 03:15 PM

Exhaust bolts can be the hardest bolts to remove on an engine.

supereal · 07-01-2016, 04:26 PM

If you break off a bolt, don't be surprised. They go thru many, many heat and cool cycles which anneals them and makes them soft. We see a lot of them at our machine shop. if not enough sticks out to use a vice grips on it, we weld a nut to the stub. The heat of the welding helps loosen it up. You don't have to pull the motor.

Ol' Ron · 07-01-2016, 06:16 PM

Use lots of 50/50 mix over a few days make sure you ude a 6point socket, you might have to make one to fit.

flatjack9 · 07-01-2016, 09:12 PM

I seldom have had a problem with exhaust manifold bolts. You've got a better than average chance of getting them out without breaking one.

mustang8 · 07-05-2016, 07:20 AM

Huh sounds pretty promising! Probably give it a shot after the Iola Old Car show swap meet this weekend.

Juergen · 07-05-2016, 08:07 AM

And when you put on the new set, use brass nuts; At a minimum they will be easy to turn off (with a little heat) and not break the studs.

Fibber Mcgee · 07-05-2016, 09:21 AM

Quote:

Originally Posted by Ol' Ron

Use lots of 50/50 mix over a few days make sure you ude a 6point socket, you might have to make one to fit.

X10. The stuff works.

mustang8 · 07-05-2016, 09:28 AM

Whats the 50/50 mix?

flatford8 · 07-05-2016, 09:43 AM

Acetone and ATF, auto trans fluid...... Mark

Fibber Mcgee · 07-05-2016, 12:20 PM

I recently has some lawnmower blades that wouldn't come off with my impact wrench. I put some 50/50 on it waited 10 minutes and all 3 came right off. I wouldn't believe it if I didn't see it.

07-01-2016, 12:28 PM	#1
mustang8 Senior Member Join Date: Feb 2015 Location: Wisconsin Posts: 200	Manifold Replacement? My exhaust manifolds on my 8Ba are cracked and in bad shape. Are they known for breaking upon removal or do I have a chance at getting these out with minimal problems? Anyone have a suggestion? Thanks. Luke

07-01-2016, 12:32 PM	#2
Charlie Stephens Senior Member Join Date: May 2010 Location: Southern California Posts: 7,051	Re: Manifold Replacement? Find a replacement before you try taking the old ones off. Probably better than trying to weld yours. Charlie Stephens

07-01-2016, 12:35 PM	#3
mustang8 Senior Member Join Date: Feb 2015 Location: Wisconsin Posts: 200	Re: Manifold Replacement? Im not going to repair them, I bought a replacement set last year already, just wondering how hard they come out.

07-01-2016, 02:16 PM	#4
Dave/Green Bay Senior Member Join Date: May 2010 Location: Green Bay Posts: 391	Re: Manifold Replacement? Mustang8: If your new manifolds don't work out post a picture of originals and I will look in the shed. I see your in Wisconsin come pick up a set, free to good home. Dave/Green Bay

07-01-2016, 02:32 PM	#5
39topless Senior Member Join Date: Sep 2013 Posts: 1,027	Re: Manifold Replacement? You can be assured that the bolts will be a bugger to get out but because you are going to toss the old ones, you can break them apart to get at those stubborn bolts if needed.

07-01-2016, 02:45 PM	#6
mustang8 Senior Member Join Date: Feb 2015 Location: Wisconsin Posts: 200	Re: Manifold Replacement? Sponsored Links (Register now to hide all advertisements) Im just hesitant to try and take the bolts out. Thanks for the offer!

07-01-2016, 03:15 PM	#8
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Manifold Replacement? Exhaust bolts can be the hardest bolts to remove on an engine.

07-01-2016, 04:26 PM	#9
supereal Senior Member Join Date: Jul 2014 Location: Iowa Posts: 1,634	Re: Manifold Replacement? If you break off a bolt, don't be surprised. They go thru many, many heat and cool cycles which anneals them and makes them soft. We see a lot of them at our machine shop. if not enough sticks out to use a vice grips on it, we weld a nut to the stub. The heat of the welding helps loosen it up. You don't have to pull the motor.

07-01-2016, 06:16 PM	#10
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,888	Re: Manifold Replacement? Use lots of 50/50 mix over a few days make sure you ude a 6point socket, you might have to make one to fit.

07-01-2016, 09:12 PM	#11
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,534	Re: Manifold Replacement? I seldom have had a problem with exhaust manifold bolts. You've got a better than average chance of getting them out without breaking one.

07-05-2016, 07:20 AM	#12
mustang8 Senior Member Join Date: Feb 2015 Location: Wisconsin Posts: 200	Re: Manifold Replacement? Huh sounds pretty promising! Probably give it a shot after the Iola Old Car show swap meet this weekend.

07-05-2016, 08:07 AM	#13
Juergen Senior Member Join Date: May 2010 Posts: 504	Re: Manifold Replacement? And when you put on the new set, use brass nuts; At a minimum they will be easy to turn off (with a little heat) and not break the studs.

07-05-2016, 09:28 AM	#15
mustang8 Senior Member Join Date: Feb 2015 Location: Wisconsin Posts: 200	Re: Manifold Replacement? Whats the 50/50 mix?

07-05-2016, 09:43 AM	#16
flatford8 Senior Member Join Date: Jan 2012 Location: Lyman,ME. Posts: 2,644	Re: Manifold Replacement? Acetone and ATF, auto trans fluid...... Mark __________________ I'm thinkin' about crankin' My ragged ol' truck up and haulin' myself into town. Billy Joe Shaver

07-05-2016, 12:20 PM	#17
Fibber Mcgee Senior Member Join Date: Oct 2010 Location: Callahan Fla Posts: 1,149	Re: Manifold Replacement? I recently has some lawnmower blades that wouldn't come off with my impact wrench. I put some 50/50 on it waited 10 minutes and all 3 came right off. I wouldn't believe it if I didn't see it. __________________ Wanted, a car with a " Dynaflex Superflowing Unijet Turbovasculator which is Syncromeshed to the Multicoil Hydrotensioned Dual vacuum Dynomometer. "