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Clara 
Samba Member
Joined: June 14, 2003
Posts: 12616
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 Posted: Fri Jun 12, 2009 8:17 am Post subject: broken exhaust valve Yreka CA |
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Just got a call this morning from my boyfriend who is broken down, he caught a ride down to the Classic with a friend with a 79 westy. Turns out the #3 exhaust valve had the end break off. The piece was lying in there near the rocker arm. That valve was not opening due to the end breaking off. Vince was trying to screw the adjusting screw in to adjust it, but then it was screwed so far in there wasn't enough room for the keeper nut. I suggested to put the nut on the other side of the rocker arm but there may not be space ? Awkwardness.
It just got new heads recently, I am not sure if this engine is hydraulic or not.
So... brand new heads...
broken valve,
WTF!
Is this a common issue?
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mattcuddy
Samba Member
Joined: October 22, 2003
Posts: 2036
Location: Philly, PA
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| Posted: Fri Jun 12, 2009 8:30 am Post subject: Re: broken exhaust valve Yreka CA |
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| Clara wrote: |
| That valve was not opening due to the end breaking off. Vince was trying to screw the adjusting screw in to adjust it, but then it was screwed so far in there wasn't enough room for the keeper nut. I suggested to put the nut on the other side of the rocker arm but there may not be space ? |
I'd be worried that the grooves for the valve spring keeper wouldn't hold anymore.
| Clara wrote: |
I am not sure if this engine is hydraulic or not.
So... brand new heads...
broken valve,
WTF!
Is this a common issue? |
Depends on the heads used, and/or the builder.  |
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germansupplyscott
Samba Member
Joined: May 22, 2004
Posts: 7254
Location: toronto
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| Posted: Fri Jun 12, 2009 8:36 am Post subject: Re: broken exhaust valve Yreka CA |
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| Clara wrote: |
So... brand new heads...
broken valve,
WTF!
Is this a common issue? |
if the heads are new then they are made by AMC and the valves are not very good out of the box on these. the keepers do not fit well, for one thing, and the minimum acceptable for using these heads is to correct the keeper fit and replace the valves. seems ridiculous to have to service a brand new head, but that's the reality.
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 52863
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Fri Jun 12, 2009 8:42 am Post subject: |
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Sorry to hear you are finding this out in Yreka  That's not really a roadside job to fix.
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Слава Україні! |
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Clara
Samba Member
Joined: June 14, 2003
Posts: 12616
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| Posted: Fri Jun 12, 2009 9:31 am Post subject: |
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Turns out Vince had replaced all the valves before installing the head. I guess he knew about that deal with quality new parts. 
So one of the new valves that did not come with the head had broken.
They only had a minimal tool/parts kit with them.
Chris House has since earlier this morning hooked them up with tools and a new valve. Thanks Chris, you rock!
Vince and Greg had the head off, replaced the valve, and the head is being torqued back on right now.
Cross your fingers!
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onion456
Samba Member
Joined: September 09, 2006
Posts: 674
Location: Houston, TX
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| Posted: Fri Jun 12, 2009 10:02 am Post subject: |
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you guys are hardcore 
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House
Minutia Militia
Joined: June 13, 2001
Posts: 1905
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| Posted: Fri Jun 12, 2009 11:13 am Post subject: |
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They are done and gone... Two hours start to finish 
Onward to OCTO! |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 52863
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Fri Jun 12, 2009 11:34 am Post subject: |
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Great news  VERY impressive, I think you've raised the bar for everyone with the speed of that fix  Either they were craving In and out really bad or you just wanted that bay out of your driveway right now
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Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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stevo
Samba Member
Joined: January 22, 2004
Posts: 980
Location: the eugeniverse
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| Posted: Fri Jun 12, 2009 3:26 pm Post subject: |
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two hours, that leaves very little time for reading muir.
skills! |
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Clara
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Joined: June 14, 2003
Posts: 12616
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| Posted: Sun Jun 14, 2009 8:26 am Post subject: |
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They didn't stop by the Blackstar Campout Friday night, but showed up at the OCTO show at 2 am Saturday. That's about 650 miles south of Yreka.
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GusC2it
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Joined: June 23, 2005
Posts: 1376
Location: Orlando, Florida, USA
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Clara
Samba Member
Joined: June 14, 2003
Posts: 12616
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| Posted: Wed Jun 17, 2009 12:11 pm Post subject: |
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the little piece of the valve that broke was in the bottom of the head, under the rocker arm.
The keepers were still holding the valve in place.
But with the top broken off, the valve was not opening, the rocker didn't move it. This caused a loss in performance.
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stevo
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Joined: January 22, 2004
Posts: 980
Location: the eugeniverse
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| Posted: Wed Jun 17, 2009 12:14 pm Post subject: |
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shearly odd.  |
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GusC2it
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