Thread: GPR Muffler stay bolts broken...
12-27-2007, 01:47 PM #1
GPR Muffler stay bolts broken...
When I bought my ski, these 2 bolts were broken, so I drilled, tapped and replaced.... now one is broken again...
Any ideas on what could be causing this?
I replaced all my exhaust mounting brackets , red loctite and tourque all per specs...
2 bolts in red circle.
12-27-2007, 01:52 PM #2
When you put the stinger on make sure you snug all the mount bolts lightly the tighten all a little at a time. This will keep the stress even on the mounts. Make sure your U pipe mounts are on proper as well. Also check the engine alignment and make sure it is true. That will keep vibrations down.
Hope that helps.
12-27-2007, 04:05 PM #3
+1 on what Spud said.Vibration,lose bolts,misalignment will cause them to snap.
12-27-2007, 04:53 PM #4
pulled mine down hundreds of times over its life with me,,,never had on ebolt break. always torqued to spec.
12-27-2007, 06:22 PM #5
Maybe its from all those big bang NOS vibrations coming from that engine David.. Your blowin the bolts off the engine with that funny stuff..
12-27-2007, 06:32 PM #6
Last edited by RUNWME; 12-27-2007 at 06:35 PM.
12-27-2007, 08:09 PM #7
12-27-2007, 10:32 PM #8
Getting all the bolts evenly snug helps. The 2 studs coming out of the pipe body must be snugged last or your pulling the pipe off the cylinders. If your head has been milled, the same amount removed must be added under the 2 stay brackets or your putting the pipe under stress.
12-27-2007, 10:37 PM #9
12-27-2007, 10:41 PM #10
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By WATER WOODY in forum Yamaha ClassifiedsReplies: 28Last Post: 04-24-2009, 08:39 AM
By WATER WOODY in forum Yamaha ClassifiedsReplies: 20Last Post: 04-16-2009, 01:05 AM
By flojo in forum Sea Doo Open DiscussionReplies: 0Last Post: 07-08-2008, 10:30 PM
By mrbtd in forum Yamaha PWC Performance (2-stroke)Replies: 3Last Post: 04-16-2007, 09:24 AM
By adrenalin in forum Sea Doo Open DiscussionReplies: 9Last Post: 06-01-2006, 10:27 PM