HELP! Bad Knock
Thread Starter
Launching!
Joined: Nov 2004
Posts: 246
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HELP! Bad Knock Hey Guys,
So I ran some seafoam through through the crank case
. I know... my bad. And the next two videos are the result. The first one shows the noise when it started and the second shows it in it's present state. Any educated guesses would be great as I start tearing into this thing in an effort to get her back on the road. Thanks!
At first.....
Now......
So I ran some seafoam through through the crank case
. I know... my bad. And the next two videos are the result. The first one shows the noise when it started and the second shows it in it's present state. Any educated guesses would be great as I start tearing into this thing in an effort to get her back on the road. Thanks!At first.....
Now......
That does not sound good at all. I have no personal experience with Seafoam but have always been a bit skeptical of it. 
How much Seafoam did you use exactly? One can of Sea Foam treats up to 16 quarts of motor oil. I assume you drained it and put fresh oil in already?
That sucks...sounds like a nightmare.
How much Seafoam did you use exactly? One can of Sea Foam treats up to 16 quarts of motor oil. I assume you drained it and put fresh oil in already?That sucks...sounds like a nightmare.
Thread Starter
Launching!
Joined: Nov 2004
Posts: 246
Likes: 0
I poured the specified amount ran it for a few small trips. Then I changed the oil and that noise started developing. Im hoping its something like a collapsed lifter but im not holding my breath on that.
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I hate to tell you, but that is more than just a lifter. Start by pulling a plug wire one at a time if the noise is greatly reduced from one of the plugs being pulled you spun a rod bearing on that cyclinder.
On The Tree
Joined: Dec 2011
Posts: 118
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From: Colorado Springs, CO
I suppose its possible. If the oiling hole of the bearing moved and the bearing itself sealed the oil channel in the rod then the pressure would just move elsewhere but there would be no oil hemorrhaging so pressure might not drop.
Just a guess
Just a guess
12 Second Club
Joined: Sep 2005
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From: Bucks County, Pa.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
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From: So.Cal.
Depends on the reason for the collapse, is it gummed up or did the spring fail.