Loose bearing rear trailing arm

[1974phil]

Hi Everyone,

I have cleaned all the threads of my trailing arms after powdercoating. I did a test fit of the bearing and could push it in the arm with no effort at all, without heating the arm or freezing the bearing. I am now thinking that the bearing might spin in the arm when driving.

Has anyone used a bearing retaining compound such as loctite 603/638 or 641 in this situation ?

I would hate to machine my arm (increase bore and fit a bushing) now that it is all done.

Thanks for you feedback,

Phil

[sanders]

I restored a very special '69 911 and ran into the same issue upon assembly. I wanted to save the original trailing arms and determined that the damage was from the use of 11-inch Fuchs. After measuring the out-of-round, I simply used shim stock, pieces of feeler gauge in various thicknesses to achieve a snug/center fit. The "fix" appears to have been successful.

[Rick Cabell]

I had this problem once. They were pretty nasty so without telling me the powder coat shop had the paint burned off in an oven. The heat and cool did return the inside diameter to the same.

[1974phil]

Hi,
Thanks for your replies. Actually I bought another rear trailing arm as upon dimantling the car I saw that in the past it hit something and the driver side trailing arm had been badly repaired. The spare part I received was generally speaking in good shape, however the bore where the bearing is pressed in was quite pitted. Stupidly I did not check bearing fit before doing all the finishing work.

The bearing does not have enough play to move from one side of the bore to another, but to me it slides in too easily. I would be unable to fit feeler gauges bit around the bearing as there is (luckily) not enough play. Therefore I was thinking about using a loctite compound to have it seated and avoid spinning.