55 Fargo Posted January 9, 2014 Author Report Posted January 9, 2014 POR15 has a product for manifolds. I used to to repair the crack on my manifold. Is holding up well. I also used it to patch the small crack in my water jacket which is also holding up well. I don't know if the JB will hold up to the manifold temps. I don't need either, can have the exhaust pipe flange surfaced if anything, it is the normal wear and tear from years of heat cycles. I have no cracks on these manifolds whatsoever... Quote
Dodgeb4ya Posted January 9, 2014 Report Posted January 9, 2014 (edited) JB Weld will burn off of an exhaust manifold. I have tried it. It stinks too! JB Quick I think is good to around 350 degrees and the regular is higher. Still not good enough. Edited January 9, 2014 by Dodgeb4ya Quote
JBNeal Posted January 9, 2014 Report Posted January 9, 2014 have ya tried to clip an old wheel weight & hammer it into the pits as a gasket filler? 1 Quote
Jeff Balazs Posted January 9, 2014 Report Posted January 9, 2014 I have seen on recent automotive shows a product they refer to as exhaust sealer. A blue colored paste that is applied to joints in pipes etc..Not sure what it is exactly...but it seems that something like this might work well. Or maybe a coppercoat product like what is used on cylinder heads? Just a couple of ideas. Jeff Quote
ggdad1951 Posted January 9, 2014 Report Posted January 9, 2014 I have seen on recent automotive shows a product they refer to as exhaust sealer. A blue colored paste that is applied to joints in pipes etc..Not sure what it is exactly...but it seems that something like this might work well. Or maybe a coppercoat product like what is used on cylinder heads? Just a couple of ideas. Jeff I used an "exhaust filler" from NAPA to fill the slight gap in the pipe diameter on the outlet of the muffler...if eventually just all fell out....rust will have to fill the void over time. Quote
Jeff Balazs Posted January 9, 2014 Report Posted January 9, 2014 I used an "exhaust filler" from NAPA to fill the slight gap in the pipe diameter on the outlet of the muffler...if eventually just all fell out....rust will have to fill the void over time. Hmm.....I wonder if all these types of products behave that way?......doesn't seem like they would have any real value if they did. I guess if we are talking about the mating surfaces then some annealed copper sheet gaskets ought be a pretty solid fix. Jeff Quote
Dave72dt Posted January 9, 2014 Report Posted January 9, 2014 I guess if we are talking about the mating surfaces then some annealed copper sheet gaskets ought be a pretty solid fix. Jeff You could cut the ends off your favorite beverage can and use that. If you split it and turned it inside out, then slid it in place, anything exposed would have the same/similar color as the aluminized exhaust pipes commonly used in modern manufacturing. I know it sounds cheap,...and is, but not all problems need high(er) dollar fixes. Quote
55 Fargo Posted January 9, 2014 Author Report Posted January 9, 2014 I am really leary of "Snake Oil" cures, over the years most times they cause more work later. Here is a pic of the flanges, I have the exhaust pipe flange cleaned up pretty good. I can and will have things surfaced if necessary, just don't think it is at this point... Quote
Jeff Balazs Posted January 9, 2014 Report Posted January 9, 2014 Yes those are not as bad as I imagined. The annealed copper fix would work extremely well on something much worse though. Jeff Quote
55 Fargo Posted January 11, 2014 Author Report Posted January 11, 2014 Should I bead blast these manifolds, or is that too risky with having glass beads staying inside , and getting into the engine later.... Quote
Scruffy49 Posted January 11, 2014 Report Posted January 11, 2014 Go for it, I used to bead blast the insides of antique HD engine case sections all the time. Run the thing through the parts washer afterwards, and there won't be any silica debris left to go anywhere. Quote
Drifter99 Posted January 13, 2014 Report Posted January 13, 2014 George Ashe gets $ 150 for a dual exhaust manifold he adds a second down tube towards the front of a stock mamifold. Quote
Bradley S. Posted May 30, 2014 Report Posted May 30, 2014 Quick question for ya'll. In the attached picture, that Fargos Go Far posted, is the heat riser flap in the open/cold or closed/hot position? Thank you! Brad Quote
Bradley S. Posted May 30, 2014 Report Posted May 30, 2014 Oh, one more thing, where might I find a intake / exhaust manifold for a 236.6 cid L6 in my B1F? Any ideas? Vintage Power Wagons does not have any. Thank you! Brad Quote
55 Fargo Posted May 30, 2014 Author Report Posted May 30, 2014 Quick question for ya'll. In the attached picture, that Fargos Go Far posted, is the heat riser flap in the open/cold or closed/hot position? Thank you! Brad Closed hot position, what manifold are you looking for a 25 inch engine type? I could get 1 for you up here, be about $50-$100, plus shipping... Quote
MBF Posted May 31, 2014 Report Posted May 31, 2014 I think you'd be fine with just the gaskets, but if you want to be sure get a small tube of furnace cement and work it into the pitted areas. Buy the smallest tube you can because once you open it, it seems to harden in the tube over time. Mike Quote
Bradley S. Posted May 31, 2014 Report Posted May 31, 2014 Hi Fargos! Thank you for the great information. I want to buy a new used Intake and exhaust manifold combo for my 236.6 cid L6. I plan to pull the engine on my B1F and go through it next winter and I would like to have a spare intake and exhaust in case I break something. Want me to send you some pictures of the one on the engine now for comparison? Thanks again! Brad Quote
55 Fargo Posted May 31, 2014 Author Report Posted May 31, 2014 (edited) Hi Fargos! Thank you for the great information. I want to buy a new used Intake and exhaust manifold combo for my 236.6 cid L6. I plan to pull the engine on my B1F and go through it next winter and I would like to have a spare intake and exhaust in case I break something. Want me to send you some pictures of the one on the engine now for comparison? Thanks again! Brad Brad the Gent that sold me my new used set, has another set. I do not. I can ask Him, to send some pics if you like.I would venture to guess, you should be able to get a donor set closer to home though, any 236, 251 or 265 engine manifold set would be work fine. Just be careful, and you should be able to remove your set without incident, good luck... Edited May 31, 2014 by Fargos-Go-Far Quote
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