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Old 08-17-2020, 02:26 AM   #1
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Brand: Thor Motor Coach
Model: ACE 29.2
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Exhaust Manifold

Hello All - So it appears I have cracked passenger side exhaust manifold or leak somewhere near the top bolt closest to pipe connection. So Ford tells me $2300 to replace and I say to myself I can do this crap for much less. Bought manifold, gasket and bolts for about $500 and went to work. After pulling first five top bolts out with ease I thought damn I’ll have this done in a few hours..... lmao... got two bottom end bolts off but then realized I couldn’t access the bottom middle 3 bolts and I was stuck and couldnt find any tips or tricks online as to how to get to lower bolts——- so exhaust manifold 1 and me 0. Anybody out there have any experience with this on 2014 ACE 29.2? Any advice would be much appreciated and worthy of hefty reward��.

Thanks,
Jason

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Old 08-17-2020, 02:38 AM   #2
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The knowledge of how to do it is probably why Ford wanted $2300.00.
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Old 08-17-2020, 03:01 AM   #3
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On the 2006, in the service manual, the first step is With the vehicle in NEUTRAL, position it on a hoist
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Old 08-17-2020, 06:42 PM   #4
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On the 2006, in the service manual, the first step is With the vehicle in NEUTRAL, position it on a hoist
LMAO! Yea, not a good sign.
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Old 08-17-2020, 06:43 PM   #5
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The knowledge of how to do it is probably why Ford wanted $2300.00.
Might be right. I have calls out to several light truck/RV mechanics in the area - nothing back yet. Awfully frustrating.
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Old 08-17-2020, 06:54 PM   #6
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I don't know what year or miles your vehicle is.
Beau will probably be able to get more exact than I can but if it's a leak you heard and haven't ascertained from what:
Which spark plug hole did the v10's blow out the threads when they had that problem?
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Old 08-17-2020, 08:46 PM   #7
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Here's a YouTube F250, it might help.


Ford will always be higher than a local shop.
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Old 08-18-2020, 08:47 PM   #8
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2014 ACE 29.2 with 62K miles...
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Old 08-18-2020, 11:54 PM   #9
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Maybe it's like Ford pickups, the cab has to be removed or lifted to get heads &/or some other engine components removed.
Had Ford trucks, V8s & V10s, at work that seemed to all have spark plug & exhaust manifold issues.
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Old 08-19-2020, 03:41 AM   #10
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I think it's more to get under the vehicle with the ability to move around and get the best angle.
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Old 08-20-2020, 08:33 PM   #11
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It's been a few of days to think about it all.
What's the deal?
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Old 08-26-2020, 08:11 PM   #12
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For not too much more take it to Banks performance or one of their authorized shops and put on the turbo charger! Quieter, more horsepower and torque. Has to have a new tune also but runs terrific!
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Old 08-26-2020, 08:26 PM   #13
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For not too much more take it to Banks performance or one of their authorized shops and put on the turbo charger! Quieter, more horsepower and torque. Has to have a new tune also but runs terrific!
I'll like to see a link.
I've never seen a banks turbocharger kit for a v10.
They have a wonky exhaust and intake boy racer kit I'm aware of.
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Old 08-26-2020, 11:59 PM   #14
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Exhaust Manifold

Is there a chance that you could undo the motor mounts and lift the motor up a little with a jack to get at the remaining studs Al
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Old 08-27-2020, 10:18 PM   #15
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Yea, that may be the route I'll have to go - or maybe cut a hole in the sheet metal - not sure yet. I'm not going to be able to get under there and do this till middle of September. I will be sure to post what I ended up doing to get to these buggers. BTW, I called 5 other light truck/heavy mechanics and not one of them returned my calls or emails. What does that tell you? haha...

Thanks all for the input! Appreciate it.

-Jason
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Old 08-29-2020, 12:51 PM   #16
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Had similar issue with 2006 Winnebago Outlook 29B with ~60K miles. Took it to Ford Truck dealer here in St Louis who pulled the engine to complete the repair. The extended warranty coverage paid for the actual repair w/o pulling the engine so I think I paid close to $1K extra. Was told he used a stainless steel bolt or manifold(not sure which one) if I recall as the factory originals were the problem.
Good luck tackling the project.
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Old 08-29-2020, 04:11 PM   #17
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All of them. So frequently I change them buy the road side.
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Old 08-29-2020, 04:13 PM   #18
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Get a good set of universal swivels and some extra extensions. Thin blade open box end wrenches. Get creative.
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Old 10-08-2020, 12:35 AM   #19
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Alright gang, I got it done with help from father in law who had the right tools and the know-how to make this happen (rebuilds old dozers and backhoes). Wasn't easy, and it took some time, but we got it done and saved about $2K. Hardest part was getting the exhaust pipe to line up with new manifold - didn't just slide on. Don't need to jack up the engine to get this done (at least on passenger side) ...And yes, I went back in and tightened everything down after taking for a good run. Saw in uptick in power and fuel efficiency and just overall smoother sounding engine. We could not find a crack in the manifold so probably just bad gasket. Oh well... see how long this lasts. Thanks everyone for your input!
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Old 10-08-2020, 12:55 AM   #20
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WOW good job
Congratulations
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