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Post by Deleted on Apr 13, 2018 9:48:38 GMT -5
I have two SEZ's that have the mounting screw holes stripped out on the bottom of the saw.What size helicoils do I need to repair them?I know they have an 8/32 thread,but what is the diameter of the screw?
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Post by sweepleader on Apr 13, 2018 10:37:32 GMT -5
It's fairly direct, you need 8-32 Helicoils to repair 8-32 holes.
Get a Helicoil (or other brand) repair kit, it will contain the proper drill, a special tap, an insertion tool, and some inserts as well as some instructions. The drill size and the special tap will in some cases depend on the brand of insert you choose.
There are also solid steel inserts that have standard machine threads on the outside so they can use standard taps. They require quite a bit bigger hole and I would save them for a last ditch effort to save a very hard to replace part.
For those who are not familiar with Helicoils and the like, the end result of a proper repair is threads that are larger than the original and hardened stainless steel. Much stronger than the original threads in mag or aluminum. They also do not wear out with repeated disassembly like mag and aluminum threads.
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Post by Deleted on Apr 13, 2018 11:48:36 GMT -5
What about just drilling out to the next size & retapping with a larger screw,or is that not advised?
This post was made with due respect to all members involved.
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Post by sweepleader on Apr 13, 2018 12:08:13 GMT -5
Drilling and tapping oversize is not advised, much trouble can be the result. Often there is little room for an oversize thread in a cast boss on a chainsaw or similar machine. Farm implements are a different thing with large bolts and extra metal. Kits are easily available at retail or on line. Here's one location:' www.mcmaster.com/?publication=ecmrc&pnchstp=2&combine_content=true#helicoils/=1ceaqfuOnce it is inserted, the original screw can be used and the repair is invisible. |
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Post by Deleted on Apr 13, 2018 15:51:25 GMT -5
Was the 18-8 the correct size needed,or was that just an example?
This post was made with due respect to all members involved.
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Post by lesorubcheek on Apr 13, 2018 17:43:44 GMT -5
The two screws that attach the handlebars on the bottom are 10-32.
Dan
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Post by sweepleader on Apr 13, 2018 18:01:21 GMT -5
Helicoils are usually 18-8 stainless steel, I don't know of a thread designated like that.
If Dan above says 10-32, I tend to believe they are 10-32. You can double check by measuring the screws you took out, 10-32 machine screws are .190" OD or just a hair over 3/16".
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Post by Deleted on Apr 13, 2018 19:37:51 GMT -5
On the IPL on Leon's site I could've sworn it said they were 8-32.I just got another SEZ today & I figured I could use those screws till I got some new ones - not the case,they were shoulder bolts,that really threw me,I wan't expecting that.
Thisd post was made with due respect to all members involved.
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Post by lesorubcheek on Apr 13, 2018 20:43:12 GMT -5
Ya know, I was going by the rev 3 IPL... that's the newer version with the plastic starter housing and air filter cover. It calls for regular 10-32 x 7/8 screws. The earlier ones use the shoulder bolts and the IPL doesn't say what size the thread is, so I assumed they'd be the same threads in the body. May well be wrong though. I'll go in a bit and see is I can tell for sure.
Dan
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Post by lesorubcheek on Apr 13, 2018 20:50:31 GMT -5
So all I had handy was a EZ 250, but they use the same 65121 shoulder screws, at least according to the IPLs. It's a 10-32.
Dan
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Post by Deleted on Apr 13, 2018 20:57:09 GMT -5
Thanks Dan!It's a good thing I didn't order the helicoil kit yet,I would've ordered the wrong one,$25 ain't nothin'to sneeze at.Not when I'm trying to live on the pittance I get paid for disability.
This post was made with due respect to all members involved.
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Post by onlyhomelites on Apr 14, 2018 9:59:07 GMT -5
Ed you'll find all kinds of wacky screws in those handles. It was common for them to vibrate out and be replaced with whatever was on hand. Probably 1 out of every 5 Super Ez's I look at is still "proper".
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Post by Deleted on Apr 14, 2018 11:18:49 GMT -5
Ed you'll find all kinds of wacky screws in those handles. It was common for them to vibrate out and be replaced with whatever was on hand. Probably 1 out of every 5 Super Ez's I look at is still "proper". Yeah Leon,like the wood screw in the muffler on the SXL-902 I have.Lol This post was made with due respect to all members involved. |
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