 Over-revved the engine, what to look for? |
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| blitZ |
 Jul 30 2010, 03:48 PM
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#1
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Beer please...  Group: Members Posts: 2,223 Joined: 31-August 05 From: Lawrenceville, GA Member No.: 4,719 Region Association: South East States  |
At the AX this past Sunday, I missed a shift and over-revved the engine. It stalled and would not restart. I assumed the worst and dropped the engine and pulled the driver's side head. I expected to see some bent valves, but it looks alright. I'm going to check the other side to be certain. I never heard any hideous noises.
What else should I be looking for in this situation? |
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| Bleyseng |
Jul 30 2010, 03:52 PM
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#2
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
I did that a few years ago and the rings were completely out of spec as the gaps were too big. Still ran but had a lot of back pressure/blowby. So I put in new pistons
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| crash914 |
Jul 30 2010, 05:10 PM
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#3
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its a mystery to me Group: Members Posts: 1,826 Joined: 17-March 03 From: Marriottsville, MD Member No.: 434 Region Association: MidAtlantic Region |
I did that once at a track...messed up my whole weekend and 5 hour drive to the track.
Turned out that the points slipped. re-gap and check. you might be ok... |
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| Mark Henry |
Jul 30 2010, 05:16 PM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Look for a valve guide hammered right into the head cracking the spring boss
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| blitZ |
Jul 31 2010, 10:11 AM
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#5
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Beer please... Group: Members Posts: 2,223 Joined: 31-August 05 From: Lawrenceville, GA Member No.: 4,719 Region Association: South East States |
I believe I may have found the problem. I have a Hot Spark ignition in my distributor. I tested it by using a meter and spinning the distributor and it never turns on. I also tried using a battery and light bulb, still nothing.
Is this the correct way to test a hall sensor? Thanks for the suggestions. |
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| Mark Henry |
Jul 31 2010, 10:50 AM
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#6
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
There a bunch of ways, do a google search.
Make sure you try both poles of the magnet. http://www.youtube.com/watch?v=9dHD_rwx6BY...feature=related |
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| underthetire |
Jul 31 2010, 10:53 AM
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#7
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
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| charliew |
Jul 31 2010, 11:08 AM
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#8
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
Most over reving is usually from a wrong gear selection and most of the time if there is a problem created it's a broken piston land. I don't see any way the ring gap will change though, the rings just loose their support and seal from the broken land because the ring groove is wider.
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