heli coil stripped
#1
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heli coil stripped
I'm working on my daughter's 91 2wd - 22re. I replaced the head gasket about 1 1/2 years ago and had one of the head bolts stripped so I put in a heli coil, and only torqued it to about 54 lbs because I didn't want to risk stripping out the heli coil. Well, after a couple of months I was getting water in the oil again so I finally tore into it again. (It's been sitting and waiting for me to work on it.) Anyhow, when I took the head off I noticed that the heli coil had come out about 1/4 ". The top thread was actually exposed above the block surface, so tonight I started working with it and I actually unscrewed the coil out of the hole, it wasn't hard to do. Problem is, it looks like the threads in the hole are ruined now. I brushed it out w/ a steel brush and tiny pieces of the thread came out. I can look down into the hole and see that the bottom half is still in tact but the top half is messed up, (stripped). DANG!
My question / options:
Is it possible to find a kit to do a second heli coil type thing? I would have to drill it again (larger than the 31/64ths) and put in a larger coil?
Another option I may have is that I found an 87 22re someone is selling w/ only 104K for $150 obo. I'm really tempted to buy that engine and put my newly machined head on it. Is an 87 22re block the same as a 91 22re block?
I'm headed to bed but I'll check for answers in the morning.
Thanks!
My question / options:
Is it possible to find a kit to do a second heli coil type thing? I would have to drill it again (larger than the 31/64ths) and put in a larger coil?
Another option I may have is that I found an 87 22re someone is selling w/ only 104K for $150 obo. I'm really tempted to buy that engine and put my newly machined head on it. Is an 87 22re block the same as a 91 22re block?
I'm headed to bed but I'll check for answers in the morning.
Thanks!
#2
I'm working on my daughter's 91 2wd - 22re. I replaced the head gasket about 1 1/2 years ago and had one of the head bolts stripped so I put in a heli coil, and only torqued it to about 54 lbs because I didn't want to risk stripping out the heli coil. Well, after a couple of months I was getting water in the oil again so I finally tore into it again. (It's been sitting and waiting for me to work on it.) Anyhow, when I took the head off I noticed that the heli coil had come out about 1/4 ". The top thread was actually exposed above the block surface, so tonight I started working with it and I actually unscrewed the coil out of the hole, it wasn't hard to do. Problem is, it looks like the threads in the hole are ruined now. I brushed it out w/ a steel brush and tiny pieces of the thread came out. I can look down into the hole and see that the bottom half is still in tact but the top half is messed up, (stripped). DANG!
My question / options:
Is it possible to find a kit to do a second heli coil type thing? I would have to drill it again (larger than the 31/64ths) and put in a larger coil?
Another option I may have is that I found an 87 22re someone is selling w/ only 104K for $150 obo. I'm really tempted to buy that engine and put my newly machined head on it. Is an 87 22re block the same as a 91 22re block?
I'm headed to bed but I'll check for answers in the morning.
Thanks!
My question / options:
Is it possible to find a kit to do a second heli coil type thing? I would have to drill it again (larger than the 31/64ths) and put in a larger coil?
Another option I may have is that I found an 87 22re someone is selling w/ only 104K for $150 obo. I'm really tempted to buy that engine and put my newly machined head on it. Is an 87 22re block the same as a 91 22re block?
I'm headed to bed but I'll check for answers in the morning.
Thanks!
Last edited by TacoNut; 09-04-2009 at 09:52 PM.
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