0
![Not allowed!](http://www.nestreetriders.com/forum/images/buttons/down_dis.png)
![Not allowed!](http://www.nestreetriders.com/forum/images/buttons/up_dis.png)
I'm about ready to blow a virtual gasket... just sent my carb rack to Sudco for a rebuild... have conversation about the costs noting if I need carb bodies I'd be better off importing a new rack from Japan as the individual parts are stupid expensive... get bill for nearly the cost of carb rack from Japan with note that 'By the way, #1 carb body has stripped cap screw bosses.'
If you knew that, WHY DID YOU PROCEED WITH THE REBUILD?!
I'm NOT a happy camper right now. Sudco's suggestion is to talk to a machine shop to get the thread repaired, I don't recall there being enough material to support a helicoil/timesert but I suppose I'll find out now. Anyone got a recommendation for a shop to try and get my carb body repaired at? Carbs aren't due back until Friday so at this point I suspect I'm out for August.
if a machine shop is needed i'd recommend harrys but i see you're quite a bit away from them (northboro, ma). can you put a nut with loctite/lockwasher/nylonnut or similar on the back with a longer screw?
or helicoil?
It's not a through hole so the longer bolt/nut trick won't fly. (The bowls are already partially held on that way...)
I would look at having a welder build up the area, then re-drill and tap. I'd offer to do it, but I'm a little rusty for fine work like that and I don't want to damage a rare carb body.
This is the reason I don't let other people work on my bike. I'd talk to the shop and see if they care at all about their reputation, the suggestion being they make it right.
drill it out and use a split insert?
-Christian LRRS/CCS HasBeen ECK Racing
2011 Pit Bike Race CHAMPION!
My concern with drilling is I don't recall there being much material to work with in the first place, although at this point it's not like I've got much to loose by trying I suppose. On the welding side, can you weld cast aluminum reliably?
I agree 100% on not letting others work on my stuff... got myself into a bind with wanting to get the carbs sorted by Round 4 and not having the parts or experience with the FCRs and was concerned that there were some setup / assembly issues from their past contributing to the random sticking throttle problem. I took the advice of an expert and sent them out rather than picking now to figure them out myself...
Lesson learned. This is why I'm ramping up to convert this thing to fuel injection, parts will be easier to source and after I'm done doing the conversion I'll know every inch of it start to finish.
Every casting welds differently. Better castings tend to weld better. I would bet it would work but would require the complete disassembly of the carb and you run the risk of it warping. It is a little hokey but have you thought about building it up with Jb weld and retapping it? It isn't structural or subjected to extreme temperature so it should be ok. Hard to give you real advice without seeing it.
It can't be that hokey an idea, Loctite and Permatex make a kit for exactly that purpose. Now I get to go stir crazy waiting to get them back before I can see and assess for myself... bah.
Wirelessly posted
Jb weld would be fine. I would also put some non-hard gasket sealer on that bowl
Or, if you need it to run for next round, how about firing a larger, coarser, sharper, screw into that soft AL casting. Then you can sort it out when you aren't pressed for time. it's not like you'll damage the threads, they are already forked.
But as far as welding a casting, the answer is "maybe"
I've welded up tabs on engine blocks and transmission casings (having oil come out of your weld bead as you're laying it sucks, but you wouldn't have that problem with a carb) and if your welder went slow and didn't let the rest of the body get too hot, it's probably do-able. You could always email Mikuni or Keihin and ask them what alloy they cast your specific carbs out of, if you know the alloy it's easy to find out if it's weldable.
Im no welding expert, but Im pretty sure that you would royally screw that carb body up with that kind of heat.
It has a gasket, just use a self-tapper a littrle larger or JB weld.
I am with Degsy on this one. No reason to make a small problem bigger.
Mike Green
LRRS #450 novice
http://www.mikegreensculpture.com
'06 svx550
'04 cr500 af le
'04 525 smr
'02 660 sms
'01 drz 450 sm streetbike
'99 r7
'99 sv650
'86 rg500
i've heard of good results for this type of repair with that type of stuff now you guys mentioned it.
like this kinda thing?
http://www.loctiteproducts.com/p/mec...poxy-Putty.htm
I'll agree, well I still think welding it *could* work and would be more "right" if done correctly, there is a lot less risk using that method, especially if this is basically non-structural.
First off I'd call up sudco and ream them the f out. Then I would try filling and retapping. I've done it with low strength stuff. They actually make metal filled putties for metal repairs two. I can't remember where the hell I found it though. Probably MSC, or McMaster etc. Good luck.
"You don’t need to tell me the horror story about your uncle’s buddy who wiped out his chopper while drag racing at some hooligan rally. That just makes me wish I were talking to your uncle’s buddy instead of you. He sounds pretty cool."
Originally Posted by JalopySiR
BWAHAHAHAHAHA!! This time I was laughing at you. Sorry.
Alumiweld propane filler etc
I would just tap the next bigger screw even if it english
The calculus of hate
It is not that I should win it is that you should lose
It is not that I succeed it is that you fail
It is not that I should live it is that you should die
Looking over the whole thing now that I've had a sec to stew I can see why they did what they did. Bad communication on both our parts, I should have been clearer on what damage would make repairing pointless. Plus, reaming them out won't do me any good, they can't get carb bodies for these carbs any more. Again, learning experience.
In the mean time I've picked up a M4 x .7 Helicoil kit, can't find any of the epoxy based thread repair kits locally but my goal is to have that in hand as well for this weekend's repair attempt.
you are not going to weld that carb... you need to JB weld a stud on there if you can...
LRRS Am #331
Graphic Tailor / Woodcraft / Armour Bodies / Suomy / Cycle Performance Autobody / Shorai / ChickenHawk Racing
done this a number of time. fill in the hole re-drill and tap it.
http://www.durafix.com/
Gino
HAWK GT Racer Expert #929
2012 CCS LRRS ULSB Champion
2012 CCS LRRS P89 Champion
2008 CCS ULSB National Champion
ECKRACING Bridgestone Street & Competition Woodcraft MOTUL On Track Media Pine Motorparts Vanson Leathers
[QUOTE=nt650hawk;1299508]done this a number of time. fill in the hole re-drill and tap it.
Cool, bring your rod and torch up to Maine this weekend...![]()