Pinion Bolt Coming Loose

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MisterK71

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Hey Gang! Put an OBR 30.5 in my DBXL (OMG IS IT FAST!), having issues with the pinion bolt working itself loose even after using blue loctite and a lock washer. I am leary of using red loctite as I don't want to break a bolt off or tear up the threads in the end of the crankshaft, any advice on what to try? Heaps of blue loctite? Gerbal with a wrench riding along re-tightening? Tack Weld? LOL
 

evssv

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file down the end of the grub so it sits flat on the shaft.....then thread lock it in....hopefully that a work(y)

ahh...no grub screw...:unsure:..hhm......
 

evssv

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hmm...not had this prob on any of my engines.:unsure:...but I've snapped the bolt a few times.:rolleyes:..on me baj and 5ive...but luckly managed to the bolt out each time..:)..this is y i don't like to thread lock it in.....i jus wang it up tight(y)
 
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MisterK71

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I'll give it a good wrenching down again with a new lock washer and see what happens, what's the worst that could happen??? bolt comes loose, burns hole in gas tank, spills gas all over hot car, ignites, burns to ground.... hmmmm. :unsure:
 

James H.

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I'll give it a good wrenching down again with a new lock washer and see what happens, what's the worst that could happen??? bolt comes loose, burns hole in gas tank, spills gas all over hot car, ignites, burns to ground.... hmmmm. :unsure:
Or the bolt could break off. Lmao! I learned a long time ago that there are situations where I would never tell someone to “wrench it down”. Hahahahaha, never know, they might not know that you can get a bolt too tight and break it. Then i just cost someone money because of my suggestion.
 

machine head

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The other suggestion is to get the original lock tit. What im saying is don't get the permatex brand and use the blue. its a better lock tit and is about 8 bucks instead of 5 bucks good luck machine head
 
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MisterK71

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The other suggestion is to get the original lock tit. What im saying is don't get the permatex brand and use the blue. its a better lock tit and is about 8 bucks instead of 5 bucks good luck machine head
Using the Permatex brand, gave it a fair dosing and cranked it down again, will know next week when I hit the track. Thanks for the advice!
 
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