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  #31  
Old 11-09-2013, 02:08 PM
waterlogged882 waterlogged882 is offline
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  #32  
Old 11-09-2013, 02:19 PM
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strad strad is offline
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I believe this is the solution for torquing the back bolts on the risers. I used it to get one of them off so I know it fits.

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  #33  
Old 11-09-2013, 02:27 PM
waterlogged882 waterlogged882 is offline
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  #34  
Old 11-09-2013, 07:06 PM
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strad strad is offline
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Well, you guessed it, another setback. Got the left manifold on, torqued it down properly, put on the riser, started to torque it down, and pulled the threads out of the manifold on both front bolts. Did not reach the specified torque before this happened. My guess is that corrosion got to the threads and took away their strength. Damn. I chased the threads before install too.

Has anybody tried to helicoil these? Not a lot of material to work with on the outboard side of the bolt. I haven't tried to do the other manifold yet -- afraid the same thing will happen.
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  #35  
Old 11-09-2013, 07:27 PM
waterlogged882 waterlogged882 is offline
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  #36  
Old 11-09-2013, 08:57 PM
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Quote:
Originally Posted by strad View Post
Well, you guessed it, another setback. Got the left manifold on, torqued it down properly, put on the riser, started to torque it down, and pulled the threads out of the manifold on both front bolts. Did not reach the specified torque before this happened. My guess is that corrosion got to the threads and took away their strength. Damn. I chased the threads before install too.

Has anybody tried to helicoil these? Not a lot of material to work with on the outboard side of the bolt. I haven't tried to do the other manifold yet -- afraid the same thing will happen.
That sucks! Helicoil should work fine- use the ones that are as deep as the hole. The coil should come with instructions for the correct drill size.
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  #37  
Old 11-09-2013, 09:15 PM
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Quote:
Originally Posted by strad View Post
Well, you guessed it, another setback. Got the left manifold on, torqued it down properly, put on the riser, started to torque it down, and pulled the threads out of the manifold on both front bolts. Did not reach the specified torque before this happened. My guess is that corrosion got to the threads and took away their strength. Damn. I chased the threads before install too.

Has anybody tried to helicoil these? Not a lot of material to work with on the outboard side of the bolt. I haven't tried to do the other manifold yet -- afraid the same thing will happen.
I would drill and tap to next size as well.
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  #38  
Old 11-10-2013, 09:09 PM
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Well I helicoiled. I ended up doing all four. I could not get to the correct torque on the back bolts without pulling out the threads. Here's proof that it is done. The left one is the one that gave all the trouble -- incidentally it was the left one where the gasket was leaking badly. The right one was leaking too but not as much. Anyways, after the helicoil they all torqued up really nicely. I went to just a hair shy of 20 lbs.



and



I vacuumed and wiped down the bilge too. Just gotta cut the new exhaust hoses now.
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  #39  
Old 11-10-2013, 10:01 PM
waterlogged882 waterlogged882 is offline
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Last edited by waterlogged882; 09-14-2015 at 09:52 PM.
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  #40  
Old 11-11-2013, 12:11 AM
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Yeah I didn't start yet because I know the ones I pulled off aren't a good template! They are softwall and both were kinked in such a way as to close off about half the opening. I assume they aren't original (mc would not have installed them that way lol) but they appear to be quite old.
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