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Going with The Old Honkie on this = Valve Guides


 
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WW2N
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PostPosted: Thu May 06, 2021 3:17 pm    Post subject: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

(previous post)52 8N starts right up and runs great in all speeds 40
psi startup
working 30+ no lower then 20 psi warm idle. No smoke at startup.
Working faint tailpipe smoke.After sitting at idle, throttle up and
blue smoke is very obvious and goes back to just a trace when I go
back working with a blade on the driveway. It takes a few projects
and
plugs foul, clean them up runs fine no misses. Dry thumb compression
test says ok. It is using a good bit
of oil even seems to be liquid oil at the end of the tail pipe. No
blow by none. (end previous post) . TOH reply was valve guides, and
had some replies for seals and we all know there are no valve guide
seals on this engine, just guides and know what others meant. My
thought is it does mimic a guide seal problem so I am counting the
guide seals answers as correct. I have a IT manual but hoping I can
get some knuckle skinners advice on dos don'ts and how to replace the
guides. One last thing I removed the carburetor as the old needle and
seat gave up and the mounting gasket was oil soaked the throttle
plate had a light coat of oil. Put a finger in the intake manifold
and found it too had some oil in it.
 
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R Geiger
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PostPosted: Thu May 06, 2021 3:28 pm    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

CVPost-WW2N wrote:
(quoted from post at 17:17:29 05/06/21) (previous post)52 8N starts right up and runs great in all speeds 40
psi startup
working 30+ no lower then 20 psi warm idle. No smoke at startup.
Working faint tailpipe smoke.After sitting at idle, throttle up and
blue smoke is very obvious and goes back to just a trace when I go
back working with a blade on the driveway. It takes a few projects
and
plugs foul, clean them up runs fine no misses. Dry thumb compression
test says ok. It is using a good bit
of oil even seems to be liquid oil at the end of the tail pipe. No
blow by none. (end previous post) . TOH reply was valve guides, and
had some replies for seals and we all know there are no valve guide
seals on this engine, just guides and know what others meant. My
thought is it does mimic a guide seal problem so I am counting the
guide seals answers as correct. I have a IT manual but hoping I can
get some knuckle skinners advice on dos don'ts and how to replace the
guides. One last thing I removed the carburetor as the old needle and
seat gave up and the mounting gasket was oil soaked the throttle
plate had a light coat of oil. Put a finger in the intake manifold
and found it too had some oil in it.


Thumb compression test tell you little, if the plugs are oil fouling I would say you have more of problem than valve guide seal problem. notice oil burning says to me more of a ring problem.
 
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Smokeonthewater
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PostPosted: Thu May 06, 2021 4:10 pm    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote


For what it's worth, my 70 yr old forklift w a flathead ROLLS oil smoke at anything over idle... it'll run you out of a 30x40 shop in 3 seconds....

So far I've had it for about a year with the plugs that came in it and used it plenty.... have not fowled a plug yet.... kind of makes me wonder if you have ring issues too.... before trying to decide anything else, do a real compression test...
 
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Hobo,NC
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Posts: 20698
Location: Sanford,NC

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PostPosted: Thu May 06, 2021 5:08 pm    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote


Good luck with your venture it sounds like it gonna be a long one...
 
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Mad Farmer
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PostPosted: Thu May 06, 2021 5:16 pm    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote


Make sure you don't have too much oil in the air filter, and/or water gunk raising up the oil level too high.

Ns will do just what you describe if they are pulling air filter oil in through the carb.

Less than 5 minutes to check that, another 5-10 to clean it and change the oil.
 
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TheOldHokie
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Location: Myersville, MD

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PostPosted: Thu May 06, 2021 11:35 pm    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

CVPost-WW2N wrote:
(quoted from post at 19:17:29 05/06/21) (previous post)52 8N starts right up and runs great in all speeds 40
psi startup
working 30+ no lower then 20 psi warm idle. No smoke at startup.
Working faint tailpipe smoke.After sitting at idle, throttle up and
blue smoke is very obvious and goes back to just a trace when I go
back working with a blade on the driveway. It takes a few projects
and
plugs foul, clean them up runs fine no misses. Dry thumb compression
test says ok. It is using a good bit
of oil even seems to be liquid oil at the end of the tail pipe. No
blow by none. (end previous post) . TOH reply was valve guides, and
had some replies for seals and we all know there are no valve guide
seals on this engine, just guides and know what others meant. My
thought is it does mimic a guide seal problem so I am counting the
guide seals answers as correct. I have a IT manual but hoping I can
get some knuckle skinners advice on dos don'ts and how to replace the
guides. One last thing I removed the carburetor as the old needle and
seat gave up and the mounting gasket was oil soaked the throttle
plate had a light coat of oil. Put a finger in the intake manifold
and found it too had some oil in it.


Please don't put words in my mouth and reread. I said there were no valve stem seals on a flathead. I did not say your problem was valve guides - only that the guides were the only oil seal in that area. To be cyrstal clear - valve guides would be at the bottom of my list of possibilities.

Now you have added oil in the carburetor and intake manifold to the list of symptoms. I think you should read and heed Mad Farmer's advice.

TOH
 
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WW2N
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PostPosted: Fri May 07, 2021 12:51 am    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

Starts easy, low compression would crank a while, no. And no blowby
and I mean no blowby says not the rings. I will run a real compression
check before I put the wrench to her.
 
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Den N Ms
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PostPosted: Fri May 07, 2021 3:41 am    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

WW2N.Better to preform a accurate leak down test along with a accurate compression test.Also check air cleaner for dirty screens and correct oil level or even below level or no oil for test.
 
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Dennis P
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PostPosted: Fri May 07, 2021 6:22 am    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

Compression test will not tell you if the problem is with the oil rings. But just sounds to me its time for a rebuild. Just my 2 cents.
 
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Mad Farmer
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PostPosted: Fri May 07, 2021 10:12 am    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

TheOldHokie wrote:
(quoted from post at 00:35:38 05/07/21)

Please don't put words in my mouth and reread. I said there were no valve stem seals on a flathead. I did not say your problem was valve guides - only that the guides were the only oil seal in that area. To be cyrstal clear - valve guides would be at the bottom of my list of possibilities.

Now you have added oil in the carburetor and intake manifold to the list of symptoms. I think you should read and heed Mad Farmer's advice.

TOH


When I got my 9N seller thought engine needed rebuild as it was doing what's described here. I got it cheap along with implements and accessories.

When I checked air filter cup it had an inch of crud and an inch of water, so it was drinking the filter oil. That was 30 years ago and I've not had to go into the motor except adj the valves.
 
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hunkydory
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PostPosted: Fri May 07, 2021 2:53 pm    Post subject: Re: Going with The Old Honkie on this = Valve Guides Reply to specific post Reply with quote

Hobo,NC wrote:
(quoted from post at 18:08:07 05/06/21)
Good luck with your venture it sounds like it gonna be a long one...

Wisdom!
 
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