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Author Topic: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power  (Read 7470 times)

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Offline mkoski

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #25 on: June 10, 2015, 10:04:02 AM »
Yeah, that oil filter is #$%* and has caused many many people problems. We should do a PSA on it.

Quote from: Don R on June 10, 2015, 09:05:30 AM
I'd be surprised if it didn't wipe a cam lobe and rocker, or the aluminum the cam rides on. Checking the lash will tell the story of the cam lobes/rocker surface. If you love this engine and one or more have excessive lash I'd pull it apart with as little running as possible.

Absolutely, I only ran it shortly to see if all four cylinders were firing.

A couple other things I didnt think about mentioning/asking before are:

1. A decent amount of smoke is now produced from the exhaust while running. This seems normal for its current state but before this happened there also used to be a lot of blue/black smoke on decel. I always assumed I had a valve issue.
2. I occasionally (semi-frequently) get a backfire through the carbs at mid-range RPM. Is this a valve issue too? Or cam?
3. How can you test the rings' integrity to ensure the issue is ONLY with the valves (top end) not the piston/ring assembly? If I can learn this then I can skip pulling the jugs. Or maybe I can inspect the cylinder walls to ensure no scoring/defects?
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Offline 70CB750

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #26 on: June 10, 2015, 10:19:20 AM »
Flip the head upside down and fill combustion chambers with light oil.  If it does not leak, the head is ok.

Actually once the head is off, the valves show what the problem could be.

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Offline Don R

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #27 on: June 10, 2015, 12:39:15 PM »
 Usually the cylinder base gasket will lose it's seal when you remove the head, Not always, but I ended up replacing the base gasket on mine. Check the valve springs closely too, if it had black smoke that's gas, blue is oil, depending on miles you may want to re-ring while it's apart.
 It's hard to stop, I ended up with an 836 kit, porting, a big cam, chamber work, a yoshi look alike pipe, etc.
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Offline mkoski

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #28 on: June 10, 2015, 02:04:22 PM »
Quote from: Don R on June 10, 2015, 12:39:15 PM
Usually the cylinder base gasket will lose it's seal when you remove the head, Not always, but I ended up replacing the base gasket on mine. Check the valve springs closely too, if it had black smoke that's gas, blue is oil, depending on miles you may want to re-ring while it's apart.
 It's hard to stop, I ended up with an 836 kit, porting, a big cam, chamber work, a yoshi look alike pipe, etc.

I know, I'm going to have to restrain myself. I was already looking at 836's...

I only have 16000 miles on the bike, original.
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Offline mkoski

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #29 on: June 15, 2015, 07:41:27 AM »
All,

I have some weekend findings, please join in the build thread, linked in my signature!
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Offline grasscutter

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #30 on: June 15, 2015, 07:48:41 AM »
Hey guys...

Spin on filters do not need to be tightened down as much as you think.  Each filter should have a 1/2 turn, 3/4 turn, or 1 turn, stamped on it somewhere.  This final turn is done after the gasket makes contact.  Hands only, no wrench.  Also should be able to spin it off by hand, when next oil change comes around.

Tighten too much, gasket gets squished and deformed.  Happens more often than you may think. 

And damn sh*t Fram filters with the nut on the housing AINT HELPING!!

Back to subject at hand:
-Didn't see if you've done the 1st two basics.  1- Compression test.  2- set valves.
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Offline mkoski

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #31 on: July 16, 2015, 08:10:53 AM »
Gents,

I have updated my build thread with the results of my top-end rebuild. Please check out my thread (link in my sig) and let me know your thoughts.

Thanks,


MJK
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Offline flybox1

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #32 on: July 16, 2015, 08:22:48 AM »
replied on your build thread
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Offline PeWe

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #33 on: July 16, 2015, 08:46:13 AM »
Lack of oil and metal ticking sound is a good reason for pulling the engine. Continue to run it can increase the price tag.
I guess that the cam bearings migh have suffered a lot with olenty of metal shaving in the cam bearings. fill oil and let that flush the bearing will if there are shavings spread it into the entire engine. Crank/rod bearings too.....

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Offline mkoski

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Re: Blew Oil Filter, Ran Un-lubricated now Top Ticking and Lack of Power
« Reply #34 on: July 16, 2015, 12:15:17 PM »
Quote from: PeWe on July 16, 2015, 08:46:13 AM
Lack of oil and metal ticking sound is a good reason for pulling the engine. Continue to run it can increase the price tag.
I guess that the cam bearings migh have suffered a lot with olenty of metal shaving in the cam bearings. fill oil and let that flush the bearing will if there are shavings spread it into the entire engine. Crank/rod bearings too.....

This is the same sound I heard before I pulled the engine. I inspected the entire top end from the valve cover all the way down to the pistons. No excess metal anywhere, all bearings looked to be in quite good shape.
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