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Super 77 oil pressure


 
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Ohio88
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PostPosted: Mon Oct 08, 2018 12:28 pm    Post subject: Super 77 oil pressure Reply to specific post Reply with quote

Just got a Super 77 gas. Good compression but 10 pounds oil pressure at idle. There is good oil flow to the valves. Is 10 pounds normal for this engine?
 
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J. Schwiebert
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PostPosted: Mon Oct 08, 2018 1:05 pm    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

How much pressure at rated RPM? Cast iron or aluminum oil filter base? what is the serial number?
 
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Ohio88
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PostPosted: Mon Oct 08, 2018 1:13 pm    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

17+ at open throttle. Don?t have the serial number here. Don?t know about the base but it has a spin on filter. It is 1957 model.
 
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J. Schwiebert
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PostPosted: Tue Oct 09, 2018 6:39 am    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

Need engine number since you have a 57 as well as serial number. Send me an e-mail. J.
 
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Ohio88
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PostPosted: Wed Oct 10, 2018 4:40 pm    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

Adding photos of the numbers.


 
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Ohio88
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PostPosted: Wed Oct 10, 2018 4:42 pm    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

Sent you an email
 
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J. Schwiebert
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PostPosted: Wed Oct 10, 2018 5:38 pm    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

The engine number is on the other side. I teach school tomorrow and then have a doctors appointment. If not too late I will call you.
 
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Ohio88
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PostPosted: Thu Oct 11, 2018 5:55 am    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

Could find no numbers on the right side of the motor. Put a Oliver gauge on the tractor and it read on the low end of normal at an idle. That leads me to believe the oil pressure will be okay.
 
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Olliejunkie
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Location: Eugene Oregon

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PostPosted: Thu Oct 11, 2018 7:21 am    Post subject: Re: Super 77 oil pressure Reply to specific post Reply with quote

CVPost-Ohio88 wrote:
(quoted from post at 06:55:21 10/11/1Cool Could find no numbers on the right side of the motor. Put a Oliver gauge on the tractor and it read on the low end of normal at an idle. That leads me to believe the oil pressure will be okay.

Stretching the pressure relief spring may help increase it if need be. It's best to put a low pressure guage right on the block to check it. I have a few I need to check.
 
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