| Author | Message | ||
     Od54 |
Front plug came out on the way home yesterday. The plug has some aluminum in the bottom 5-6 threads on one side. Talk about noisy when it came out. I thought the whole engine had blown up. As of right now, considering money and needing to be riding by Monday, it will probably be a controversial decision but I'm just going to heli-coil it and start saving for a new head. Anyone have some good trick for keeping the shavings out of the head other than the standard putting some grease on the cutter? | ||
| Az_m2 |
I had that happen on my Uly. I must have been lucky, I just screwed it back in. No issues. It happened fairly soon after I had service done. I'm sure they just didn't tighten it properly. Good luck . . . Chris | ||
| Speedfreaks101 |
I have not had it happen but why would you replace the head? Many aftermarket cylinder heads use heli-coils when they are new. As long as it is properly done you should be fine. You could also have a machine shop weld, drill & tap it out. | ||
| Fastxb12r |
Heli-Coil will work just fine when done properly those things can last forever.I personally would still save for a head but heli-coil is the way to go. Good Luck | ||
| Damnut |
Yup happened to me 200 miles from home. Started working on the problem on the side of the road while friends fetched the trailer.  I replaced the head. Actually Hammer gave me head, He's good like that!!!! | ||
| Od54 |
New plan. Can't find any coils anywhere nearby. Therefore, I'm taking the head off and we're going to fill the hole with weld then redrilling and tapping.... Yea, you read it right. I'll let you know how it goes. | ||
| Hammer71 |
No secrets here. | ||
| Joesbuell |
Man I love my old tuber! I don't need to pull it to bits to get the plugs out! | ||
| Mr2shim |
How does that happen? I'm a bit confused. | ||
| Od54 |
I'm pretty sure that the last person that put it in damaged the threads, it might have backed out a little, then the threads failed. Quite suddenly as it were. Also, the head is off to the welder, who just so happens to be my father. I hope all goes well. (Message edited by od54 on June 29, 2008) | ||
| Mr2shim |
Hope I installed my rear spark plug correctly. It was tough to thread in at first.... :/ It's been close to 4k miles since I replaced them. Good luck with your fix mang. Sounds like it'd work.  | ||
| Ratbuell |
Either a cross-thread or a not-threaded-in can cause the p-tui complex. Check an autoparts store. It was pricey, but I got a spark plug helicoil set about a year ago for my Jeep with its own tap (stepped) and both sizes of plug thread coils. Although since you're welding it, you should be OK. | ||
| Oddsc |
Happened to my Uly with only 1500 miles on it. Popped right out, there were still a few threads in, so I limped 300 miles home. I had the head replaced under warranty. I can only imagine it was cross-threaded from the factory. | ||
| Od54 |
I looked absolutely everywhere for a helicoil but they didn't have any 12mm x 1.25. | ||
| Ratbuell |
Pretty sure I have 'em at the house, I can send you the mfr and kit number if you like. Or, I can drop a coil and tap in the mail to ya as long as you return the tap  | ||
| Point_doc |
I had this happen to my rear head. I used this $9.00 item and it repaired my threads without any problems. http://www.usatoolwarehouse.com/usatoolwarehouse/STR-1013A.html I applied primary lube to the tool and ran it a couple of turned at a time in and then removed/cleaned/reapplied another coat of oil to the tool until the spark plug restorer was completely thru the hole. Then I put a small diameter plastic hose on the end of the shop-vac nozzle attachment and then vacuumed out the cylinder. If you own a Buell or Harley, you should buy one for that..."OH-SHIT" moment!!! Heli-Coil set: http://www.use-enco.com/CGI/INSRIT?PARTPG=INSRAR2&PMAKA=240-0609&PMPXNO=4824588 (Message edited by point_doc on June 30, 2008) | ||
| Davefl |
I would give these a try.. I have heard good things. http://www.timesert.com/html/sparkplug.html | ||
| Ulendo |
be glad its not an old CB350 - had mine fire off a plug in high school, and blasted a hole in the fuel tank. LOTS of excitement for the subsequent 60 seconds! put a helicoil in that, replaced the tank ( and repaired the melted wiring harness) and it ran faithfully for another 4 years for me. | ||
| Djkaplan |
"I replaced the head. Actually Hammer gave me head, He's good like that!!!!" You've had Hammerhead? Heh... I like my entendres the same way I like my whiskey... double! | ||
| Od54 |
I should get the head back tonight after work. I appreciate the offer ratbuell but hopefully I'm already fixed. Also thanks for the part #'s. UPDATE: Got it all back together last night around 11. Runs like a champ. Also found the rear plug was loose. So loose that I took it out by hand. Oh well, that's what I get for buying a bike and not checking every little thing. Thanks all. (Message edited by od54 on July 02, 2008) | ||
| Ssscrudddy |
wow. the only time I saw a plug blow out was at a bike rally, freezing bloody cold in the morning, & some newbie started his 125 & redlined it immediately. I warned not to do so & why, he reckoned it was ok, then the plug blew out the top, & the piston blew out the bottom, left a nice smoking mini crater in the ground. funny as fu*ck that was (not yours) | ||
| Diablobrian |
At homecoming I had my front plug pop out. Fortunately there were enough threads left to get a plug back in, though not the same plug because the threads on the one that came out were knackered. I see a time-sert or heli-coil in my future since matching the work done on the rear head would be tricky to say the least. |
