my engine has a small crack near where the exhast bolts are located what can i fill it with and drill out and re tap it
2007-01-17 07:14:41 · 11 answers · asked by al9600mc 2 in Cars & Transportation ➔ Motorcycles
try JB weld.had a Suzuki as a winter hack a few years ago and the spark plug stripped its threads on the way to work. Stuck it back in with JB to get me home ran it like that for 3 years.
2007-01-18 06:56:51 · answer #1 · answered by motomarco9999 2 · 0⤊ 0⤋
sounds like you have a exhaust problem, as only one bolt is now holding . if this is the case you might try a strong exhaust spring on the side that is striped or the other option is pull it apart and have it heliarked at a welding shop , drill it and retap the hole.i have yet to find liquid steel , or any other product of that nature desined to handle the pressure around a threaded hole ,a tab to mount on the pipe and a small hole in a finn unless it is water cooled in which case a spring mount on the engine can be tricky , in which case i put a tab on a cylinder bolt or head bolt ,.if you look at a 2 cycle dirt bike perhaps you will see where im leading you
2007-01-17 18:14:09 · answer #2 · answered by cliffmichelefarmer 1 · 1⤊ 0⤋
If the exhaust bolt threaded holes are stripped, it's better to heli-coil them than to JB weld, drill & re-thread them.
If you literally have a crack, the best fix is to have it heli-arc'd, then restore the hole.
Second best is to clean and rough it with very abrasive grit sandpaper and JB weld it.
.
2007-01-17 15:24:39 · answer #3 · answered by s2scrm 5 · 1⤊ 0⤋
Since this question is in the motorcycle forum, I assume it is an air cooled bike and the crack is in the cylinder head. No filler will stay in the crack because of expansion and contraction of the metal. My recommendation is to replace the head.
2007-01-17 15:22:10 · answer #4 · answered by yes_its_me 7 · 3⤊ 0⤋
JB Weld will sometimes work, if you have the bike inside a heated garage or the temp is above 70 degrees where you are.
Also a marine sealer called Brolite also works very well and is not effected by the temp.
2007-01-17 17:50:25 · answer #5 · answered by Anonymous · 0⤊ 2⤋
Sounds to me your thinking CHEAP.No guarantees but go to an automotive store, they sell repair glues. Chances are it will not work, maybe for a short time but it would be worth a try.
2007-01-17 15:24:07 · answer #6 · answered by Mr. Wonderful 2 · 0⤊ 1⤋
You need a new engine block. At least you dont have an engine in your crack...... What a hoot......
2007-01-17 16:52:14 · answer #7 · answered by Anonymous · 0⤊ 1⤋
That metal could be aluminum or magnesium.Have it heli-arc welded.
2007-01-17 15:29:40 · answer #8 · answered by gdwrnch40 6 · 1⤊ 0⤋
putty metal once its set you can drill it and its heat prof it repaired my core plugs
2007-01-17 15:19:53 · answer #9 · answered by orphan boy 5 · 0⤊ 1⤋
check out this site WWW. DURAFIX EASY WELD
2007-01-17 18:30:06 · answer #10 · answered by charles999450 2 · 0⤊ 1⤋