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NO OIL PRESSURE ON FRIENDS 9N


 
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ZANE
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Joined: 10 Aug 1998
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PostPosted: Fri Oct 05, 2012 4:49 pm    Post subject: NO OIL PRESSURE ON FRIENDS 9N Reply to specific post Reply with quote

A friend brought his 9N to my shop a couple of days ago and left it. He called and told me that he was afraid he had ruined the "inserts". I couldn't get it started. No fire and no fuel. Out of gas and bad coil, points and condenser before I got it going.
Had a hard time getting the point gap opened up enough. Another Chineese breaker plate. Sure enough there was no oil pressure and bearings were squeeling pretty good. I removed the oil pressure relief valve cap and spring and plunger. Took a lenght of rubber hose and squeezed in about a half cup of 90W oil into the oil pump using an old slime container. Put it back together and fired her up. Oil pressure came right up to around 40 psi. No rattling or squeeling. Ran it for about an hour and pressure held about 20 psi when hot.

I believe he has put something like 10W30 oil in it and that is just too thin to stay in the pump when the pump gets too much wear on it. I am going to recommend to him that he either put 40W oil in it or add something like STP etc to thicken up the oil so the pump will hold it's prime.

Lucky he didn't have to replace the crankshaft. Just a few more minutes with no oil pressure and he would have for sure.

Zane
 
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Fritz Maurer
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Joined: 14 May 2011
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PostPosted: Fri Oct 05, 2012 5:05 pm    Post subject: Re: NO OIL PRESSURE ON FRIENDS 9N Reply to specific post Reply with quote

Glad he got off the hook. If he starts it every couple months, it'll probably be ok. Don't you love those 'friend' jobs? He couldn't even have a gallon of gas in there? Probably just as well. There's probably an inch of water covering the dirt in his gas can anyway.
 
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Hobo,NC
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Joined: 14 Jun 2007
Posts: 11551
Location: Sanford, NC

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PostPosted: Fri Oct 05, 2012 5:26 pm    Post subject: Re: NO OIL PRESSURE ON FRIENDS 9N Reply to specific post Reply with quote

ZANE wrote:
(quoted from post at 04:49:19 10/06/12) A friend brought his 9N to my shop a couple of days ago and left it. He called and told me that he was afraid he had ruined the "inserts". I couldn't get it started. No fire and no fuel. Out of gas and bad coil, points and condenser before I got it going.
Had a hard time getting the point gap opened up enough. Another Chineese breaker plate. Sure enough there was no oil pressure and bearings were squeeling pretty good. I removed the oil pressure relief valve cap and spring and plunger. Took a lenght of rubber hose and squeezed in about a half cup of 90W oil into the oil pump using an old slime container. Put it back together and fired her up. Oil pressure came right up to around 40 psi. No rattling or squeeling. Ran it for about an hour and pressure held about 20 psi when hot.

I believe he has put something like 10W30 oil in it and that is just too thin to stay in the pump when the pump gets too much wear on it. I am going to recommend to him that he either put 40W oil in it or add something like STP etc to thicken up the oil so the pump will hold it's prime.

Lucky he didn't have to replace the crankshaft. Just a few more minutes with no oil pressure and he would have for sure.

Zane


You know and I know what happen and why,,, If you are up to it fix the issue while he knows someone he can trust... Are the next time he may bring it to ya with a window in the block.... Very Happy
 
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9N..john,pa
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PostPosted: Fri Oct 05, 2012 7:07 pm    Post subject: Re: NO OIL PRESSURE ON FRIENDS 9N Reply to specific post Reply with quote

Why don't I just "deliver" my 9N to ya, later.
She hasn't seen sunshine fer 'bout 5 yrs.

This way, after you'all get her perkin's good, I can always driver her back home and let my E-150 there for always. B&B at Zane's.

John,PA

PS: Bettter check'en with the Mrs.
 
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POPGUN
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Joined: 12 Dec 2009
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PostPosted: Fri Oct 05, 2012 11:38 pm    Post subject: Re: NO OIL PRESSURE ON FRIENDS 9N Reply to specific post Reply with quote

Hi Zane,I have primed pumps like you did and the oil presure stayed up fine but shut it off, let it sit an hour and punp failed to pick-up the oil and had to be primed again next start up. The weight of the oil would not be a real factor if its looseing its prime even 90-140 in cold weather will bleed out over time even if it took it longer. I have always found the pick-up tube has a pin hole,or loose and needed braized and or the pump at fault and replaced it. If I read you post right I would see how hes getting along after it sat overnight. Just my thoughts and hope I'm wrong.
 
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