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Author Topic: Unexpected Winter Project  (Read 1175 times)

Offline Jeff

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Unexpected Winter Project
« on: December 23, 2013, 09:24:32 AM »
Some of you may have read my review on the AMA Roadside Assistance. Here is the aftermath of that event...

A faulty idler..


Led to this...


And this...


This complete timing belt replacement was done 50k ago with all new components, even that idler shown in the first picture. One reason not to trust just any aftermarket part, do your research before assuming they're comparable to OEM.

That idler let go and maxed the tensioner out which left slack in the timing belt which in turn caused the driver side head to jump time. Add an interference engine into the mix and you wind up with this.
-Jeff

2015 Triumph Tiger XCx
1998 Triumph Daytona T595
2004 Honda CRF250X

Offline barrypz

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Re: Unexpected Winter Project
« Reply #1 on: December 23, 2013, 09:55:16 AM »
Probably not what you planned for your free time.
maybe the sky IS falling

Offline Jeff

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Re: Unexpected Winter Project
« Reply #2 on: December 23, 2013, 10:18:21 AM »
Ahhh, no, not really what I had planned. It was all quite a let down that's for sure. You think you're doing the right thing by doing preventative maintenance and then you end up with this as a result.

We wound up buying a new car to replace the duty this car used to see (girlfriends daily commuter) and now this car will be what I drive to work when I don't take the bike. I'm sure she'll still drive this car here and there seeing she really loves it. She's owned it now for 8 years and she was very upset when it broke. Aside from this its really been a good car considering the mileage on it.
-Jeff

2015 Triumph Tiger XCx
1998 Triumph Daytona T595
2004 Honda CRF250X

Offline SkiMan

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Re: Unexpected Winter Project
« Reply #3 on: December 23, 2013, 01:00:39 PM »
Jeff.....you know I say this in jest........Merry F$%&k#%G Christmas :facepalm:
"Four wheels move the body, two wheels move the soul"

Offline AlmosN8kd

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Re: Unexpected Winter Project
« Reply #4 on: December 23, 2013, 01:10:39 PM »
Ouch!  Did it bend the intake valves in both heads or just the left side? 

Losing a timing belt on an interference engine is the worst; especially around the holidays, I feel for you dude!
~Shawn

Offline Jeff

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Re: Unexpected Winter Project
« Reply #5 on: December 23, 2013, 01:18:11 PM »
Jeff.....you know I say this in jest........Merry F$%&k#%G Christmas :facepalm:

LOL!! I thought those same words to myself Kim!

Ouch!  Did it bend the intake valves in both heads or just the left side? 

Losing a timing belt on an interference engine is the worst; especially around the holidays, I feel for you dude!

Those are the exhaust valves but either way, they're bent valves. It seems to only have bent the valves on the drivers side head. I think it was the location of the bad idler that allowed tension to be kept on the belt on the passenger side. I did a leakdown test on all cylinders on the passenger side just to make sure. Seeing everything had jumped time and I didn't want to risk more damage a compression test was out of the question.

The damage sucks anyway you look at it, holidays or not. At least with the new replacement car the pressure is off to hurry up and fix it. The only issue is it's tying up the bay of my garage.
-Jeff

2015 Triumph Tiger XCx
1998 Triumph Daytona T595
2004 Honda CRF250X

Offline AlmosN8kd

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Re: Unexpected Winter Project
« Reply #6 on: December 23, 2013, 07:50:22 PM »
My bad, at first glance they looked like the intake valves; I guess I should have noticed the manifold still mounted to the head in the pic.  I guess on the bright side, you only have to rework one head vice two which will save you some labor. 
~Shawn