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Possible new toy Onan 7.5 JB


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  #21  
Old 02-13-2017, 10:09:00 PM
len k len k is online now
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Default Re: Possible new toy Onan 7.5 JB

Johnny is that lifting bracket factory? It doesn't look right.
Looks like too much leverage action going on. Usually the bolts are right near the bend of the angle iron.

Last edited by len k; 02-13-2017 at 10:19:08 PM.
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  #22  
Old 02-13-2017, 10:18:30 PM
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Default Re: Possible new toy Onan 7.5 JB

Quote:
Originally Posted by len k View Post
Johnny is that lifting bracket factory? It doesn't look right.
Looks like too much leverage action going on. Usually the bolts are right near the bend of the angle iron.
100% factory. 100% positive. It will only fit one way and and look at the parts manual diagram compared to my picture. Note the position of the bracket in relationship to where the carburetor would mount to. Ignore the highlighted yellow head gasket (26). I marked that as a part I needed awhile ago.

JohnnyC
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  #23  
Old 02-13-2017, 10:21:35 PM
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Default Re: Possible new toy Onan 7.5 JB

I didn't see the 3-rd bolt. Good design. Good paint job

Is that bolt #42 tapped into cover or down to head? Hopefull to head.
Mine doesn't have the lifting bracket

I seem to remember seeing the angle iron running parelle with crank spin axis, but maybe that's on JCs
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  #24  
Old 02-13-2017, 10:29:32 PM
JohnnyC JohnnyC is offline
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Default Re: Possible new toy Onan 7.5 JB

The larger diameter bolt that mounts directly to the top of the valve cover is 40 in the diagram. It is a 1/2-13 x 1-1/4" bolt part#800-0091 whereas the other two bolts are 5/16-18 x 1-1/4" bolts part#800-0030.

The JC have the lift bracket as you described.

JohnnyC
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  #25  
Old 02-13-2017, 10:32:53 PM
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Default Re: Possible new toy Onan 7.5 JB

Looks like every single one of my two cyl J series sets so I say it is fine 😀Cheers Dan
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Old 02-13-2017, 10:33:51 PM
Leon N. Leon N. is online now
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Default Re: Possible new toy Onan 7.5 JB

Ray, my JB lifting bracket is attached to the valve cover with one bolt.
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  #27  
Old 02-14-2017, 02:33:30 AM
Ray Lynch Ray Lynch is offline
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Default Re: Possible new toy Onan 7.5 JB

Quote:
Originally Posted by Ray Lynch View Post
Heh Leon
Is your lifting bracket held to the valve cover with 1 bolt or 3?
My 1965 JB has a bracket that looks like yours with 1 large bolt only holding it to the valve cover.
My 1985 JB has a bracket with 1 large bolt threaded into the valve cover and 2 holes that accept 2 valve cover bolts as well.
Both brackets are oriented with the angle legs parallel to the sets length.

Ray
The info I gave above is not totally correct. Only the 1 bolt bracket is oriented parallel to the sets length.
The 3 bolt bracket is mounted as shown in Johnny's post #19 picture.
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  #28  
Old 02-14-2017, 04:27:15 PM
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Default Re: Possible new toy Onan 7.5 JB

My lift bracket on my JB 7.5 is factory same as johnny C Jb identical
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  #29  
Old 02-15-2017, 03:42:40 PM
squidtrap squidtrap is offline
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Default Re: Possible new toy Onan 7.5 JB

JohnnyC-looks like the same bracket on the set im looking at, thanks. Also thanks to all others who posted, very busy, have not been on for 2 days.

UPDATE- seller is not to motivated, only managed to get 1 phone call answered, and one e-mail answered, ????? last contact i asked for pick of control box to see if it was toast and nothing sense then. Seems like this is the story on all JB's i locate which are few.

Going to try another call and e-mail, really would like pic b4 driving 1 1/2 HR. and possibly waste my time. Or if i get through by phone i will hit him up with the boat anchor or runner situation and feel him out where he stands w/price.
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  #30  
Old 02-15-2017, 05:20:46 PM
Leon N. Leon N. is online now
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Default Re: Possible new toy Onan 7.5 JB

Be advised the shape of my JB lifting bracket shown in post 26 sis in my mind very important as well as how it is attached to the valve cover.
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