broken bolts of carb joint

Hi Chaps, yesterday I had to replace my leaky joints. As suspected two of the bolts broke. We didn't worry and we created a simple adaptor as you see on the picture attached. Looks even better as the original bolt. After all was done the engine runs very well again. I can tell you it was a hard way fom cleaning the carb down to replacing the joints. But it was woth to be done. The Queen is alive again!

 

Very creative solution to a common problem.

Are you able to make them in small volume? For the exhaust studs too. You will find there is a market for them.

I hope you put some anti-sieze on them. Next time they break there'll be nothing left to work with.

 

Definately a market for them! I am scared to replace these for that exact reason! There should be a 'sticky' for this. Sell them as a complete set and you are in the money my friend!

 

Very good idea. Make 'em and market 'em.

 

You know, with those replacement adapters someone needing to pull the intakes could just drill or grind the cap off the screw. Then he'd have a nice stud there ready to work with.

Remove the risk of having the buggers snap flush with the head.

 

Now That's Ingenuity !!! Great job !

in·ge·nu·i·ty /ˌɪndʒəˈnuɪti, -ˈnyu-/ Pronunciation Key - Show Spelled Pronunciation[in-juh-noo-i-tee, -nyoo-] Pronunciation Key - Show IPA Pronunciation
–noun, plural -ties for 3.
1. the quality of being cleverly inventive or resourceful; inventiveness: a designer of great ingenuity.
2. cleverness or skillfulness of conception or design: a device of great ingenuity.
3. an ingenious contrivance or device.

 

I think I can safely say that we, the XJ crowd, are just amazed at those little adapters. You truely ought to post the specs or market those gizmos!

 

Hi Chaps,

well, to be honest I can really say that we are truly amazed about your feedback on our simple solution. Because of that we are currently trying to figure out wether we can find someone who can build those adaptors and what the price will be. If there will be no way we will post a detailled spec here. Give us two weeks to figure out. We'll keep you informed.

/Ramon

 

I doubt there is enough demand to tool up for production, unless they could be used on other makes and models. For our community turning them on a lathe to order would probably meet demand.

At $20 apiece they'd be a steal for anyone faced with pulling the head and dragging it to a machine shop. Thats for metric ones. SAE size (Harley) should be priced significantly higher.

When I think about how many older bikes are on the road with all their intake and exhaust studs I wonder if you shouldn't be looking into a patent.

 

Hi Chaps, to keep you updated. I found one who is willing to produce these replacement adaptors based on my spec. But the price is high. In case I'm going to sell them the price would be around 20 EUR per each. I guess a bit too high. We will see.

 

Interesting/clever solution
BUT don't overlook that it's it's totally dependant of the screw snapping off with adequate threads remaining Unlikely at best.
Other less Glamorous trick would be to weld a Nut onto the screw remnant then use a wrench to unscrew the thing while still warm .
This method has worked for decades on VW exhaust studs
Replacing the OEM Socket head screws with ones of a little bit more quality/strength than the Really Poor ones Yama saw fit to provide will prevent the problem resurfacing... Should the Motor live so much longer

 

Hi again,

to keep you updated. I found somebody who is willing to produce a small series of those nitty gritty adaptors. Not that cheap. But it depends on the quantity. Therefore I need to know how many of you guys are interested to get one or even more. Cost will be 10-12 EUR + shipping for one and maybe 8-10 EUR per each when buying up to 4 of them. So sent me a PN or whatever in case you are interested. If we get not that much people together we can discuss the price again.

So it's up to you.

 

Ok gang, here is the opportunity to put our money where our mouths are. I'm not in need of them but would suggest you less mechanically apt folks purchase a set as a back up (or to scalp to some needy bugger later). Perhaps the forum as a whole might make an investment and have one of our members dole them out as needed. No profit but helpful.

 

mcmaster carr
part # 93355A100
and five minutes on a lathe and your all set, just a bit cheaper

 

Good point but how many folks here have access to a lathe?

 

Can probably be machined using a 1/2' drill motor. Clamp the coupler in a vise & round down the edges on one end with a file, then chuck it up and use the file to machine it down to size. Then you can cut it down to the exact length you want and finish it off with some emery cloth.

You can likely get the couplers at a local well stocked hardware store.