Compression problem rear cylinder
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
I did the same thing. I joined in 2012, but didn't buy until 2014...I think. I'm terrible with dates. Couple of years anyway.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Did it help or hurt your decision to buy a Harley?
I only ask 'cause it took you 9 years to buy one.
Just to be clear I'm not giving you **** I'm just curious.
I only ask 'cause it took you 9 years to buy one.
Just to be clear I'm not giving you **** I'm just curious.
Thread Starter
|
Cruiser
Joined: Aug 2008
Posts: 190
Likes: 25
From: Rotterdam, Netherlands
20 years back I didn't come close, 9 years back I barely had the money for one, times changed for the better so here I am:
And the first thing it does is drop a cylinder
.
Last edited by Daedalus; Jan 30, 2018 at 05:32 PM.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
The possibility exists that your only problem is the base gasket.
If that is the case I recommend getting either Cometic or James metal head and base gaskets.
Most EVO's are partial to a 20 thou base and 30 thou head gasket combo.
If that is the case I recommend getting either Cometic or James metal head and base gaskets.
Most EVO's are partial to a 20 thou base and 30 thou head gasket combo.
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,541
Likes: 6,416
From: Honah Lee
Welcome from Hampton Roads Virginia. Do a leak down and listen where it is leaking. Drop it in low gear and crank it around to TDC with rear wheel. Leak down calibrated gages do not work with that much pressure. Least the ones I have.
I would sort of want to just make sure some trash was under valve seat. If it is the valve, I still on tear down would at minimum hit the cylinders with a medium stones for a crosshatch and put new rings in it.
With only two cylinders, you could actually do it by hand. Here in the USA, a hone is a free loaner tools from Autozone.
I would sort of want to just make sure some trash was under valve seat. If it is the valve, I still on tear down would at minimum hit the cylinders with a medium stones for a crosshatch and put new rings in it.
With only two cylinders, you could actually do it by hand. Here in the USA, a hone is a free loaner tools from Autozone.
Last edited by Jackie Paper; Jan 30, 2018 at 05:50 PM.
Thread Starter
|
Cruiser
Joined: Aug 2008
Posts: 190
Likes: 25
From: Rotterdam, Netherlands
*update*
Both piston compression rings are broken. Never seen it before and no idea how it is caused. I know I over revved the engine ones or twice because I came from a high performance v-twin, one that could go over 10k rpm. Dunno if it has anything to do with it...
But what a breeze to work on. Everything is accessible very easy. No more 4 valves per cylinder, with double cam shafts in the cylinder head like the Rotax engine. Just a couple of nuts and bolts and the whole top end comes apart. I like it.
Did a quick check on the camshaft bearing and I haven't found any debris. I want to pull the front cylinder as well and will remove the camshaft after that. But thing look pretty good, given the circumstances
One question... The base gasket was een steel plated one, while I expected a paper one. Did they have plated gaskets in'96? Or is it a new gasket which would mean someone has been working on the engine before?
Both piston compression rings are broken. Never seen it before and no idea how it is caused. I know I over revved the engine ones or twice because I came from a high performance v-twin, one that could go over 10k rpm. Dunno if it has anything to do with it...
But what a breeze to work on. Everything is accessible very easy. No more 4 valves per cylinder, with double cam shafts in the cylinder head like the Rotax engine. Just a couple of nuts and bolts and the whole top end comes apart. I like it.
Did a quick check on the camshaft bearing and I haven't found any debris. I want to pull the front cylinder as well and will remove the camshaft after that. But thing look pretty good, given the circumstances
One question... The base gasket was een steel plated one, while I expected a paper one. Did they have plated gaskets in'96? Or is it a new gasket which would mean someone has been working on the engine before?
Last edited by Daedalus; Jan 31, 2018 at 11:07 AM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
*update*
Both piston compression rings are broken. Never seen it before and no idea how it is caused. I know I over revved the engine ones or twice because I came from a high performance v-twin, one that could go over 10k rpm. Dunno if it has anything to do with it...
But what a breeze to work on. Everything is accessible very easy. No more 4 valves per cylinder, with double cam shafts in the cylinder head like the Rotax engine. Just a couple of nuts and bolts and the whole top end comes apart. I like it.
Did a quick check on the camshaft bearing and I haven't found any debris. I want to pull the front cylinder as well and will remove the camshaft after that. But thing look pretty good, given the circumstances
One question... The base gasket was een steel plated one, while I expected a paper one. Did they have plated gaskets in'96? Or is it a new gasket which would mean someone has been working on the engine before?
Both piston compression rings are broken. Never seen it before and no idea how it is caused. I know I over revved the engine ones or twice because I came from a high performance v-twin, one that could go over 10k rpm. Dunno if it has anything to do with it...
But what a breeze to work on. Everything is accessible very easy. No more 4 valves per cylinder, with double cam shafts in the cylinder head like the Rotax engine. Just a couple of nuts and bolts and the whole top end comes apart. I like it.
Did a quick check on the camshaft bearing and I haven't found any debris. I want to pull the front cylinder as well and will remove the camshaft after that. But thing look pretty good, given the circumstances
One question... The base gasket was een steel plated one, while I expected a paper one. Did they have plated gaskets in'96? Or is it a new gasket which would mean someone has been working on the engine before?
I think there were still using paper gaskets in '96, so it sounds like your motor is not a virgin.
Did your cylinder bore get torn up? Any pieces of piston ring break off?