One of the 300D 2.5T's you got from me had the epoxy fix for that exact bolt - I don't remember which one.
On Sun, Oct 25, 2020 at 11:25 PM OK Don <okd...@gmail.com> wrote: > It depends on how long you expect him to keep the car. If it will be > replaced in a year or two, use the thread fixing epoxy, if longer, do it > right with a helicoil. > > On Sun, Oct 25, 2020 at 6:02 PM Kaleb Striplin via Mercedes < > mercedes@okiebenz.com> wrote: > >> My biggest concern with that is getting the hole drilled straight. >> Probably would need to remove the radiator to have more room to work. >> >> On 10/25/2020 5:48 PM, OK Don via Mercedes wrote: >> > 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 >> >> >> >> >> >> _______________________________________ >> 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! > -- 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
