Carb bolt problem

usdthrone23 · Post by **usdthrone23** » Mon May 02, 2005 9:27 pm

I got the intake back on no problem but when im screwing the bolt in on the carb (farthest away from you) it doesnt catch or anything ive tried atleast 25 times and it feels like its tightning up but the it loosens right back out again .

vette76 · Post by **vette76** » Mon May 02, 2005 9:41 pm

sounds like its stripped. this happened to me and all i did was take a wiretie and screw it in with the bolt.(the easy way) if u have access to a tap and die set u can also use that.(i was in a rush to get it on the road again, thats why i took the easy way out)

Spreed · Post by **Spreed** » Tue May 03, 2005 12:57 am

I stripped my bolt too and it felt like that. The easiest way if you don't have a drill, tap and die set is to get this stuff from Permetex call Thread Repair Compound. I'm sure you can find it at chain autoparts stores like PepBoys (I don't know for sure, I am a Canuck). It's not cheap at $16 Cdn., but cheaper than a tap and die and works good. Just follow the instructions on the package to the "t", don't take any shortcuts and in 30 min. you will have threads on there that are 80% as strong as the original (as the package says), but independant testing by an Alpha Romeo car club with a lab and too much spare time has actually shown the fix to be equally as stong as the original thread, especially for threads that were weak by design to begin with like our tiny aluminum carbs.

Post by **noiseguy** » Tue May 03, 2005 9:02 am

Are you using the right bolt in the right hole? They should be different sizes.

This type of failure is common on bikes, esp. the aluminum blocks. If the threads are stripped, I would buy a helicoil kit and fix it right ($10 US). This replaces the existing threads with new (and stronger) steel threads.

You could try filling the hole with JB Weld (a form of putty epoxy), and drill and tap that after waiting a couple of days for it to cure. But this isn't as good a fix, and if you don't have the tools on hand, no cheaper than a helicoil kit.

nester · Post by **nester** » Tue May 03, 2005 11:08 am

If you're talking about the bolt closest to the cylinder... Since that hole goes all the way through, I just went down to Lowes, bought a M6 x 1.25 bolt and a nut to fit, slid the bolt all the way through, put the nut on the other side..

Then I went out and dominated the streets.

usdthrone23 · Post by **usdthrone23** » Tue May 03, 2005 1:57 pm

It wasnt stripped i didnt pay attention and put the longer bolt in the intake but i got it all worked out and its running again thanks for the help guys .

Gruvin · Post by **Gruvin** » Tue May 03, 2005 11:06 pm

noiseguy wrote:This type of failure is common on bikes, esp. the aluminum blocks. If the threads are stripped, I would buy a helicoil kit and fix it right ($10 US). This replaces the existing threads with new (and stronger) steel threads.

I can attest to the integrity of helicoil. We use it on big block cylinder heads. Go with that.