Having done all of the above, I would helicoil it. On Sun, Oct 25, 2020 at 5:43 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote:
> I do not think I am going to helicoil it. I see the potential to make > it much worse. I see several folks on the forums mentioning they just > coated the threads with JB Weld and it has been fine. I also have seen > this Locktite thread repair and thought about trying it. Basically you > coat the bolt with a release agent, then mix the 2 part epoxy. Coat the > bolt with it then run the bolt in the hole for 5 minutes. After 5 > minutes, remove the bolt and then let the epoxy set for 30 minutes > before then screwing the bolt in. Supposedly it it forms new threads > using the bolt as the pattern. > > > https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII > > > On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: > > My next concern would be cleaning up the shavings after tapping and > > installing the helicoil. I have first hand experience with this from > > helicoiling a head hold down stud in a VW case once - despite out best > > efforts at containing and then removing the chips, the engine seized in > > about a mile or two. Tear-down revealed lots of aluminum shavings in the > > crank bearings. > > I read a tip on an airplane forum the other day where he > > recommended filling the area with shaving cream before drilling, tapping, > > and breaking off the tang of the helicoil, then vacuuming it out > > afterwards. He claimed that you get all the chips out and that the > shaving > > cream (soap) doesn't hurt anything. I've never tried this, YMMV. > > > > It's a metric thread, use a pair of calipers and measure the diameter --- > > If you don't have a pair of calipers, I can recommend this set (the HF > ones > > died early and were not repeatable) > > > https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 > > I like them so much that I bought two, one for each side of the hangar so > > I'm running back and forth all the time looking for them. > > > > On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < > > mercedes@okiebenz.com> wrote: > > > >> Any idea what size helicoil it would be? > >> > >> On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: > >>> Time for a Helicoil thread repair kit. > >>> That mounting is a high stress area, with a repeated high failure > rate.. > >> It > >>> needs full thread contact and regular inspection of the bolt for > working > >>> loose. > >>> > >>> Spend the money and time to repair the thread, It should last for a > good > >>> while... Don't repair it, just kluge it with JB or something, and when > it > >>> lets go and the pulley/ belt/ fan eats whatever is handy at highway > >>> speed... you get to buy lots of new parts and labor... > >>> > >>> Your call... Helicoil repair kit would be mine.. > >>> > >>> On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < > >>> mercedes@okiebenz.com> wrote: > >>> > >>>> Working on my fathers 98 e300 doing routine maintenance. Noticed the > >> belt > >>>> tensioner was cockeyed. Typical. On this car the tensioner was loose > >> with > >>>> the PO and he I believe used some lock tight and tightened it back > down. > >>>> The threads were somewhat stripped out. I was aware at some point it > >> could > >>>> become an issue. When I removed the bolt it was tight, not loose so > I’m > >>>> sure the tensioner is just worn out. When I go to replace it I don’t > >> think > >>>> I’m going to be able to crank down on it like normal. It appears the > >> first > >>>> half of the threads are stripped so it’s just grabbing with the back > >> half. > >>>> Think I should clean it up real good and used either red or blue > >> locktite? > >>>> What about JB welding it? What about running a tap down the hole to > >> clean > >>>> it up? Anybody know what size it would be or if that would even work? > >> See > >>>> photos and video below. > >>>> > >>>> https://youtu.be/cWiG0ihny0M > >>>> > >>>> > >>>> > >>>> Sent from my iPhone > >>>> _______________________________________ > >>>> http://www.okiebenz.com > >>>> > >>>> To search list archives http://www.okiebenz.com/archive/ > >>>> > >>>> To Unsubscribe or change delivery options go to: > >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>>> > >>>> > >>> _______________________________________ > >>> http://www.okiebenz.com > >>> > >>> To search list archives http://www.okiebenz.com/archive/ > >>> > >>> To Unsubscribe or change delivery options go to: > >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>> > >> _______________________________________ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: > >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >> > >> > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Wernher Von Braun 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
