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Keep Tightening?


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I'm putting the bottom caps on my trunnion (SWDL56). They had one shim under each side of the caps; there was no gap when I took it apart. All the parts are what came out of it, they weren't too rusty. I sandblasted (didn't use aggressive grit) and primed everything. I've got them tightened to around 200 ft. lb. (spec on 7/8" fine #8 bolt is 600 ft. lb.) and there's still a gap under the caps...should I keep tightening? Does anyone have experience putting these together? I don't want to crack anything.

Trunnion2.jpg

Trunnion1.jpg

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A question of another field - are you going to keep the spindle ends of the trunnion bar as they are on the picture? I mean just blasted? Suppose they will ruine the bushings pretty soon. Removable bar allows to put it in a lathe and be machined. I did that but than had to fabricate new brass bushings to the size the bar turned out.

DSC00954-001.jpg

Никогда не бывает слишком много грузовиков! leversole 11.2012

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As for the gap I would measure it and add shims. Maybe a little bit thinner than the actual gap is. Also might worth observation and light sanding of the mating areas of the bar, its beds and the caps. Local edges and other surface imperfections could limit cap's sitting position.

Никогда не бывает слишком много грузовиков! leversole 11.2012

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15 hours ago, Vladislav said:

A question of another field - are you going to keep the spindle ends of the trunnion bar as they are on the picture? I mean just blasted? Suppose they will ruine the bushings pretty soon. Removable bar allows to put it in a lathe and be machined. I did that but than had to fabricate new brass bushings to the size the bar turned out.

Mine has rubber bushings; I hope they're not supposed to spin on the shaft. I won't be putting a lot of miles on this truck so hopefully the rough surface won't cause a problem.

image.jpeg.6e4fa56363406c0bc59ee4cec3c3d7b5.jpeg

15 hours ago, Vladislav said:

As for the gap I would measure it and add shims. Maybe a little bit thinner than the actual gap is. Also might worth observation and light sanding of the mating areas of the bar, its beds and the caps. Local edges and other surface imperfections could limit cap's sitting position.

I'm going to try your sanding idea and see what happens.

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Vlad is da man! I sanded the paint off the shaft and areas that hold the shaft; now it's pretty tight. That epoxy primer is tough--it was barely scratched where the shaft was being pinched in there.

200428.1 Trunnion.jpg

200428.2 Trunnion.jpg

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