Demon Carb Problem
#1506590
09/23/13 08:52 PM
09/23/13 08:52 PM
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Joined: Jan 2003
Posts: 1,221 Jarrettsville, MD
tywebb2
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
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I have an 825 Mighty Demon that is about 10-11 years old. I was working on it this past weekend and one of the helicoils in the main body that the float bowl bolt threads into pulled out completely...along with the threads in the main body that were holding the helicoil in place.
Anyone have any suggestions on how to repair this? The hole right now is larger than 1/4". The way it looks I could use a 17/64" drill bit to clean it up but that puts me at a 1/4-20 helicoil. Going to a 1/4-20 bolt would require opening up the bolt hole in the metering block and float bowl. What a mess...
'72 440 Cuda 11.673 @ 115.91 w/1.663 60'
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Re: Demon Carb Problem
[Re: tywebb2]
#1506592
09/23/13 10:33 PM
09/23/13 10:33 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Despite its low use, the 2nd-hand Demon RS I bought some years back already had two BG-installed heli-coils pulling out of the main body. I tried to re-install the standard-size inserts, but they just pulled back out, too. My solution was to go up in size to 6 mm x 1.0 mm tpi and even found some w/ a 5 mm allen-head style that still fit inside the float bowl screw head recesses, although I had to cut the screws down from the closest available length. This approach did require drilling the float bowl screw holes and the plastic washers just slightly oversize for the 6 mm screws, but the metering blocks didn't need anything to work w/ the larger screws. So far, so good...
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Re: Demon Carb Problem
[Re: BradH]
#1506595
09/23/13 11:40 PM
09/23/13 11:40 PM
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Joined: Jan 2003
Posts: 1,221 Jarrettsville, MD
tywebb2
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
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I had thought about going with an M6 bolt but was hoping to keep them all the same. Timesert shows they have a bigsert that is designed to repair when a helicoil pulls out...but they don't show one for a 12-24...everything but that? I will contact them tomorrow to see if by chance they have one that will work.
BradH...do you remember where you got the M6 bolt you used?
'72 440 Cuda 11.673 @ 115.91 w/1.663 60'
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