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TinCup · 01-23-2020, 04:45 PM

Finally heard back for Steve at Bert's at as I was afraid they did not have a resource for the 5mm .75 helicoil for the repair. Because there is no way access the passage for the secondary well you cannot simply fill and retap. I had another old Zenith bottom that I tested using a 5mm .8 helicoil and it worked. It holds the jet and seals with no leak. Tends to chew up the threads a bit on the jet but is much better solution than JB Weld.

01-23-2020, 04:45 PM	#17
TinCup Senior Member Join Date: May 2010 Location: OKC / Tonkawa, Ok. Posts: 1,977	Re: Cap and Comp Jet Helicoil repair Finally heard back for Steve at Bert's at as I was afraid they did not have a resource for the 5mm .75 helicoil for the repair. Because there is no way access the passage for the secondary well you cannot simply fill and retap. I had another old Zenith bottom that I tested using a 5mm .8 helicoil and it worked. It holds the jet and seals with no leak. Tends to chew up the threads a bit on the jet but is much better solution than JB Weld. __________________ Oklahoma City Model A Restorers Group.