Re: Hopping Rear
Posted: Thu Jul 21, 2022 12:33 pm
Andy8421 wrote:Elanman99 wrote:
Lastly, washers are not used on the caliper bolts. Its a horrible thought, but I wonder if someone put them on to disguise a damaged lug.
Ian
Ian,
I would like to understand more about this. The rear caliper bolts pass through the aluminium lug at the bottom of the strut, and screw into a thread tapped into the cast caliper body. As I mentioned above, I believe it is usual practice to place a washer under a bolt head when a soft material is being clamped to avoid the bolt digging in to the soft material. The engine (for example) has a washer under every nut or bolt where it is up against an aluminium casting.
Do you have technical knowledge in this field, or are you basing your comments on the parts list diagram?
Thanks,
Andy.
No I dont have any specific knowledge but based my reply on how Lotus dealt with this particular fixing.
As you say it is good practice to use a washer to spread the load when there is risk of damaging a soft material. The particular bolts in question are mainly subject to shear so I dont expect they were meant to be particularly tight (I dont have the torque figure to hand) and the wirelocking just prevents them from loosening off and backing out. In the late 60's early 70's I saw, and was involved with many brand new Elans and every one had thees bolts wirelocked.
If one wanted to use a washer on a caliper bolt it should at least be a substantial (thicker) one, rather than the 'penny' washers seen in the pictures. By 'damaged lug' I meant it might be cracked and/or welded and the large washer used to hide it.
Ian