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Exhaust Manifold flapper shaft leaks #1492057 08/28/13 05:32 PM 08/28/13 05:32 PM
Joined: Apr 2005 Posts: 833 Ohio V viperakron OP super stock
viperakron OP super stock V Joined: Apr 2005 Posts: 833 Ohio	I've got a big block A Body so removing the manifold to repair is a problem. The shaft on the flapper valve is loose and leaking. Any in car fixes? I've used some red sealer and muffler repair which burned off. Any tricks? Solder, lead?? I've got the pipe down and can get inside and outside. Not enough room to pull the shaft out. Just want it to last when I put it back together.

Re: Exhaust Manifold flapper shaft leaks [Re: viperakron] #1492058 08/28/13 06:50 PM 08/28/13 06:50 PM
Joined: Jan 2003 Posts: 75,058 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,058 U.S.S.A.	Quote: I've got a big block A Body so removing the manifold to repair is a problem. The shaft on the flapper valve is loose and leaking. Any in car fixes? I've used some red sealer and muffler repair which burned off. Any tricks? Solder, lead?? I've got the pipe down and can get inside and outside. Not enough room to pull the shaft out. Just want it to last when I put it back together. Is it a 383 or a 440 ? I pulled the exhaust manifold on my 383 car even with the studs still in the head. the only way to fix it is to pull the shaft out and bush the manifold ... or cover it in red hi heat RTV ...

Re: Exhaust Manifold flapper shaft leaks [Re: JohnRR] #1492059 08/28/13 07:08 PM 08/28/13 07:08 PM
Joined: Apr 2005 Posts: 833 Ohio V viperakron OP super stock
viperakron OP super stock V Joined: Apr 2005 Posts: 833 Ohio	It's a 440. The two bolts with sleeves are near impossible to get a wrench on. No leverage to turn em with a little box end. Gonna try and force a bushing around the shaft and into the hole in the manifold. Otherwise cut the flapper out and seal up the holes.

Re: Exhaust Manifold flapper shaft leaks [Re: JohnRR] #1492060 08/28/13 11:00 PM 08/28/13 11:00 PM
Joined: Jan 2003 Posts: 15,424 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,424 Omaha Ne	BUSH it, anything else is just a band aid www.tandmautomotive-omaha.com

Re: Exhaust Manifold flapper shaft leaks [Re: TJP] #1492061 08/28/13 11:03 PM 08/28/13 11:03 PM
Joined: Jan 2003 Posts: 9,436 Blair County,PA 62maxwgn master
62maxwgn master Joined: Jan 2003 Posts: 9,436 Blair County,PA	Yep !! 7831474-Picture988.jpg (149 downloads)

Re: Exhaust Manifold flapper shaft leaks [Re: 62maxwgn] #1492062 08/29/13 12:03 AM 08/29/13 12:03 AM
Joined: Jan 2003 Posts: 75,058 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,058 U.S.S.A.	Quote: Yep !!

Re: Exhaust Manifold flapper shaft leaks [Re: JohnRR] #1492063 08/29/13 12:15 AM 08/29/13 12:15 AM
Joined: Feb 2003 Posts: 4,798 Castlegar, BC, Canada That AMC Guy master
That AMC Guy master Joined: Feb 2003 Posts: 4,798 Castlegar, BC, Canada	Remove manifold. Drill, Tap, Plug. I would wager 99% of our cars are all fair-weather drivers, so the baffle really isn't all that necessary. I've taken them out of all four of my AMC's and noticed no ill effects from any. Though it did actually change the exhaust tone slightly on both the six cylinder cars! Bloody Mary, Full of Vodka, Blessed art thou among cocktails....

Re: Exhaust Manifold flapper shaft leaks [Re: viperakron] #1492064 08/29/13 06:10 AM 08/29/13 06:10 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Quote: It's a 440. The two bolts with sleeves are near impossible to get a wrench on. No leverage to turn em with a little box end. Gonna try and force a bushing around the shaft and into the hole in the manifold. Otherwise cut the flapper out and seal up the holes. You would never get a new bushing in there without drilling the hole oversize to accomadate the bushing.. As stated, pull the manifol, drill/tap the holes and put plugs in the holes... I am truckless..

Re: Exhaust Manifold flapper shaft leaks [Re: 340SHORTY] #1492065 08/29/13 06:13 PM 08/29/13 06:13 PM
Joined: Apr 2005 Posts: 833 Ohio V viperakron OP super stock
viperakron OP super stock V Joined: Apr 2005 Posts: 833 Ohio	New bushing in manifold, manifold stayed on car. Took a dremel to the area around the shaft to clean it up, hit it with brake cleaner. Put the new bushing on a grinding wheel and beveled it to make the leading edge slightly tapered. Polished it smooth. Put it in the freezer and heated up the manifold, slid the bushing on the shaft, put a 5/16 box wrench over the shaft to get support on the full bushing and used a crowbar to get leverage against the engine block. Pressed against the wrench head and went right in. Put the Jesus clip on the shaft to hold everything together.

Re: Exhaust Manifold flapper shaft leaks [Re: viperakron] #1492066 08/30/13 08:24 AM 08/30/13 08:24 AM
Joined: Jan 2003 Posts: 75,058 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,058 U.S.S.A.	Quote: New bushing in manifold, manifold stayed on car. Took a dremel to the area around the shaft to clean it up, hit it with brake cleaner. Put the new bushing on a grinding wheel and beveled it to make the leading edge slightly tapered. Polished it smooth. Put it in the freezer and heated up the manifold, slid the bushing on the shaft, put a 5/16 box wrench over the shaft to get support on the full bushing and used a crowbar to get leverage against the engine block. Pressed against the wrench head and went right in. Put the Jesus clip on the shaft to hold everything together. That's interesting so there was a bushing on that shaft that disintergrated and left the shaft and the hole in the manifold perfectly clean so you could slide in a replacement bushing ? Where did you get the bushing ?

Re: Exhaust Manifold flapper shaft leaks [Re: JohnRR] #1492067 08/30/13 09:42 AM 08/30/13 09:42 AM
Joined: Apr 2005 Posts: 833 Ohio V viperakron OP super stock
viperakron OP super stock V Joined: Apr 2005 Posts: 833 Ohio	The clips were missing on the shaft and the bushing came out of manifold on the shaft. It pushed the spring out to the end of the shaft. Shaft wobbled in the hole. Took spring off and replaced the rusty old bushing like I explained, Whether you believe it or not!

Re: Exhaust Manifold flapper shaft leaks [Re: viperakron] #1492068 08/30/13 11:37 AM 08/30/13 11:37 AM
Joined: Jan 2003 Posts: 2,636 Nashville, TN M MOPARMIKE69 master
MOPARMIKE69 master M Joined: Jan 2003 Posts: 2,636 Nashville, TN	Quote: The clips were missing on the shaft and the bushing came out of manifold on the shaft. It pushed the spring out to the end of the shaft. Shaft wobbled in the hole. Took spring off and replaced the rusty old bushing like I explained, Whether you believe it or not! I can believe it but WHY? Pull the manifold fix it right and put it back in. I promise you I can do it right in less time than it took to cobble up something like that. 69 Road Runner vert 69 GTX hard top 70 Road Runner 4 speed 70 Hemi Cuda vert

Re: Exhaust Manifold flapper shaft leaks [Re: That AMC Guy] #1492069 08/30/13 12:26 PM 08/30/13 12:26 PM
Joined: May 2005 Posts: 4,740 Florida BDW master
BDW master Joined: May 2005 Posts: 4,740 Florida	Quote: Remove manifold. Drill, plug. That's what I did.

Re: Exhaust Manifold flapper shaft leaks [Re: viperakron] #1492070 08/30/13 12:32 PM 08/30/13 12:32 PM
Joined: Jan 2003 Posts: 75,058 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,058 U.S.S.A.	Quote: The clips were missing on the shaft and the bushing came out of manifold on the shaft. It pushed the spring out to the end of the shaft. Shaft wobbled in the hole. Took spring off and replaced the rusty old bushing like I explained, Whether you believe it or not! This may be the case but I'm trying to figure out what you replaced? I'll have to look at the manifold off my 383 car because I don't remember seeing any clips on the shaft or bushings . The only manifolds I have seen with bushings were later model manifolds and repair kits , of which I have an NOS 67-69 heat riser repair kit .

Re: Exhaust Manifold flapper shaft leaks [Re: MOPARMIKE69] #1492071 08/30/13 12:51 PM 08/30/13 12:51 PM
Joined: Apr 2005 Posts: 833 Ohio V viperakron OP super stock
viperakron OP super stock V Joined: Apr 2005 Posts: 833 Ohio	Quote: Quote: The clips were missing on the shaft and the bushing came out of manifold on the shaft. It pushed the spring out to the end of the shaft. Shaft wobbled in the hole. Took spring off and replaced the rusty old bushing like I explained, Whether you believe it or not! I can believe it but WHY? Pull the manifold fix it right and put it back in. I promise you I can do it right in less time than it took to cobble up something like that. I don't see any 440 A body cuda's in your sig. So you are very welcome to come by and take this manifold off so I can do it right. Pack a bag!

Re: Exhaust Manifold flapper shaft leaks [Re: viperakron] #1492072 08/30/13 12:54 PM 08/30/13 12:54 PM
Joined: Jan 2003 Posts: 2,636 Nashville, TN M MOPARMIKE69 master
MOPARMIKE69 master M Joined: Jan 2003 Posts: 2,636 Nashville, TN	Quote: Quote: Quote: The clips were missing on the shaft and the bushing came out of manifold on the shaft. It pushed the spring out to the end of the shaft. Shaft wobbled in the hole. Took spring off and replaced the rusty old bushing like I explained, Whether you believe it or not! I can believe it but WHY? Pull the manifold fix it right and put it back in. I promise you I can do it right in less time than it took to cobble up something like that. I don't see any 440 A body cuda's in your sig. So you are very welcome to come by and take this manifold off so I can do it right. Pack a bag! I have completely restored one and sold it so I know all about 440 A -bodies. 69 Road Runner vert 69 GTX hard top 70 Road Runner 4 speed 70 Hemi Cuda vert

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