702 Clunking Noise

......when you need to get in the weeds.
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mtblah
Posts: 2001
Joined: Thu Mar 26, 2020 12:09 pm
Location: new braunfels TX

Re: 702 Clunking Noise

Post by mtblah »

simple cotter key on each end .
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Ron Stauffer
Posts: 511
Joined: Fri Dec 14, 2018 10:25 am
Location: Uncompahgre Plateau Montrose CO
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Re: 702 Clunking Noise

Post by Ron Stauffer »

It is rate for just one part to be worn. I see a rebuild in your future. We are in the process of rebuilding 15 and yes they were all still pumping when taken down. That phrase as well as I drove it right here and parked it 10 years ago carries about the same weight...

Ron Stauffer
Montrose CO
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windybob
Posts: 3873
Joined: Mon Jan 14, 2019 5:59 pm
Location: Ames Oklahoma

Re: 702 Clunking Noise

Post by windybob »

Also, if the babbitt is worn out, or the mastpipe nut is too high, the yoke might be hitting the nut.
Call Dan Benjamin for parts. P M me for the phone number. IF YOU TALK TO HIM, AND HE HELPS YOU, THEN BUY FROM HIM. IT CREATES GOOD KARMA.
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deep water
Posts: 4
Joined: Sun Jan 22, 2023 7:25 pm
Location: Texas

Re: 702 Clunking Noise

Post by deep water »

Hello to all, as I am new here. I know this is an old post. But I signed up specifically to respond to this issue. What you see in this video is very rear, and I have only seen this once before. The pinions, shaft, and keyway are worn out. Watch the pinions on the shaft very closely. You will see them move past each other, causing the abnormal knocks.

Thanks
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