Re: Failed helicoil repair

Posted by Griffin on Jul 24, 2017; 6:18am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Failed-helicoil-repair-tp4062429p4062499.html

I ended up figuring it out. The tap worked out ok I may have jumped to conclusions too soon.  After getting the 21/64 drill bit it wasn't too bad. It's not perfectly straight which bugs me but it holds the tensioner fine. I put a new O-ring on the bolt too. Seems like it will be fine now.

On Jul 23, 2017 9:39 PM, "shinyribs [via Vintage and Classic Honda's]" <[hidden email]> wrote:

Griffin wrote

I'm not so sure it was a failed helicoil after all. But I had trouble tapping it I don't seem to have the right size drill bit and I rounded the tap. Definitely going to a machine shop now.

I pulled the can chain b tensioner and found the tube covering the spring is cracked. Anyone ever replace that with something at a hardware store? Or have a good one I can buy. There's not much on eBay in the US.

I know I'm late to the party, but your tap rounded off going in to aluminium? Not to be rude, but that must not be much of a tap.

These particular holes are well known for stripping. Heli-coils only work worth the taps they come with, and they come with good taps. Heli-coils are stronger than Time-serts. Helis have deeper, coarser threads that grab the surrounding metal much, much better.

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