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Quick Question on Drive Shaft U-Joints

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Slownrusty
Posts: 15
Joined: Wed Apr 24, 2019 2:22 pm
Location: Houston, TX

Quick Question on Drive Shaft U-Joints

Post by Slownrusty » Sat May 11, 2019 12:05 am

Guys - So I have my driveshaft out and looking specifically at the Universal Joints (U-Joints) I noticed they were a bit stiff, moving them directionally around. For S and Gs, I decided to add a few drops of penetrating oil (PB Blaster) and worked it in and immediately there was a dramatic improvement in the feel and movement of the joint. The joints have no play in them.

Question: Do you think the U-joints are Ok or need replacement?

My car is an '86 CSi Manual with just under 100k miles.

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Ralph in Socal
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Re: Quick Question on Drive Shaft U-Joints

Post by Ralph in Socal » Sat May 11, 2019 8:14 pm

They need to be replaced. There is still a finite life left in them but the lubricant you provided will not last very long. Oil will vaporize quickly once back in use. Unfortunately an expensive job to replace the staked-in u-joints. Good luck

Ralph
There is a very fine line between "Hobby" and Mental Illness.

85 635csi Zinno Auto
84 528i Euro
83 635 Euro Arktik
81 528i Kastanien 5-speed
88 528e Bronzit (Granpa Car)
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Slownrusty
Posts: 15
Joined: Wed Apr 24, 2019 2:22 pm
Location: Houston, TX

Re: Quick Question on Drive Shaft U-Joints

Post by Slownrusty » Tue May 14, 2019 12:20 pm

Thanks Ralph...I have a sinking feeling that I am borrowed time.

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