Blew my engine yesterday
#1
Blew my engine yesterday
Riding home with the missus after being out for a few hours and a nice cool day yesterday.
I passed a cager that was poking along, when a big *POOF!* of white smoke bellowed out my right muffler (front cylinder), and subsequent puffs as I coasted to the roadside. What I found odd was that the engine wouldn't shut off, even after i hit both kill switches. I had to stall it with my clutch once I got pulled over. Oil still quite full, no external leaks. The front cylinder just smoked like hell & went dead. The rear cylinder was still firing though, and the engine would still start & run (BARELY). Fortunately a buddy of mine is in a prominent MC around here, so he had a trailer & a trustworthy repair guy to take it to. We're dropping her off tomorrow, hopefully the damage isn't TOO bad, but we'll see. 64k miles, and I'm often not gentle with it. A friend who's a respectable Harley wrench suspects front piston rings at MINIMUM.
*SIGH*
I passed a cager that was poking along, when a big *POOF!* of white smoke bellowed out my right muffler (front cylinder), and subsequent puffs as I coasted to the roadside. What I found odd was that the engine wouldn't shut off, even after i hit both kill switches. I had to stall it with my clutch once I got pulled over. Oil still quite full, no external leaks. The front cylinder just smoked like hell & went dead. The rear cylinder was still firing though, and the engine would still start & run (BARELY). Fortunately a buddy of mine is in a prominent MC around here, so he had a trailer & a trustworthy repair guy to take it to. We're dropping her off tomorrow, hopefully the damage isn't TOO bad, but we'll see. 64k miles, and I'm often not gentle with it. A friend who's a respectable Harley wrench suspects front piston rings at MINIMUM.
*SIGH*
#2
The following 3 users liked this post by Tommy C:
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sparky0496 (07-07-2021)
#6
#7
Smoke like crazy when they do that.
The following 6 users liked this post by TwiZted Biker:
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#8
Update...
Leakdown test was performed, rear cylinder was blowing air into the crank case which suggests either rings or a hole in the piston.
Front was blowing air into the intake, which suggests a bent valve.
The tech is gonna check again to be certain, then he's gonna pull the heads and see what's actually happened. He also said the rear spark plug was completely jacked up, the electrode was loose. Which is weird because those are fresh plugs, maybe 400 miles ago.
Leakdown test was performed, rear cylinder was blowing air into the crank case which suggests either rings or a hole in the piston.
Front was blowing air into the intake, which suggests a bent valve.
The tech is gonna check again to be certain, then he's gonna pull the heads and see what's actually happened. He also said the rear spark plug was completely jacked up, the electrode was loose. Which is weird because those are fresh plugs, maybe 400 miles ago.
The following users liked this post:
SpringerSoftail2020 (08-09-2021)
#10
It's coming completely apart, get your head around that now and plan accordingly as it isn't going to be a cheap fix if things went that catastrophic inside. Busting the porcelain in the plug says something was rattling around in there, that will beat the **** out of everything including hammering the crank pin & bearings not to mention all the nasty that got blown into the crankcase, oil & oil pump.
Start deciding if the bikes worth it to you.
Start deciding if the bikes worth it to you.