Stronger Damper Bolts

[IamScotticus]

For those interested 

Jack Webb is offering improved strength lower damper bolts.  (for trunion-less uprights)

https://jackwebbmotorsport.co.uk/Caterham-Uprated-Lower-Damper-Bolts-Imperial-p574565084

 

Also, Jack can produce improved Ital half shaffs and disc conversion kits. He needs a minimum of 5 orders.

Im in if four more want to commit.  We could consolidate the shipping.

Edited November 17, 2023 by IamScotticus

[MV8]

I bet he gets those from the same place we do. You can buy those shown from Mcmaster. They need to be painted or greased as the high strength fasteners only come in black oxide finish. 170kpsi, 5/16-24, partial thread. Pick the length based on the unthreaded shank length of the original or slightly longer and use a washer if needed. Trim excess length beyond nut with a die grinder with a thin, 2-3 inch disc and debur. Subtract 1.125" from the listed length to get the shank length. If you don't want to trim threads, just using one of these with the same overall length should be a big improvement, though the original may have just been overtightened.

  https://www.mcmaster.com/products/screws/socket-head-screws~/thread-size~5-16-24-2/threading~partially-threaded/finish~black-oxide-1/

[EdWills]

Hi IamScotticus.  As per the advice of MV8, similar specification bolts (12 point) can also be obtained from ARP in the U.S. or possibly Pegasus?  I note that you live in Houston U.S.A., so ordering items from the U.K. that have originally come from the U.S., will have extra costs on them due to U.K. import charges, customs fees, taxes etc.  Regarding shipping from the U.K., I recently ordered 4 small screws (manufactured there - not China), and the postage was £19.25 (equivalent to $25.00 U.S. approx.).  Some (not all) businesses in the U.K. that are willing to ship to North America, have been burned in the past - according to them - with false claims of lost items, damage etc, so that they will now only ship tracked and insured by post, or use courier companies.  I've noted that courier companies tend to charge a rather high cost for clearing items through customs even when the item is duty free.  In Canada, the postal service does charge for the item to be taken off the line for customs inspection, but the charge is not too bad ($9.00 currently), the duty is assessed depending on the CRA Tariff number, and you pay the duty, postal charge, and/or taxes at the post office when you pick the item up. Canada Post seems to allow up to $100.00 (Canadian dollars) value before they assess duty.  They sometimes also waive the taxes, and the item is delivered to your door/roadside box with no fees owing.  The U.K. still has a few specialized manufacturers of Imperial size nuts and bolts, but now mostly sells only metric fasteners.  The Imperial sizes mostly come from the U.S. and India.  EW.

[IamScotticus]

Thanks Ed.

I reached out to Jack Webb to ask about the standard Imperial (Triumph) lower bolts ans he said those are not known to be of concern.

 

My post is also intended to promote Jack Webb here.

He does offer some worthwhile upgrades for the Catermams.

I am particularly interested in his uprated Ital live axle half shafts.  He said he needs a minmum of five orders to do them.  Such shafts will complete a Quaife diff.  They should be if particular interest to those with the tack welded bearings.

I would be interested in a group buy, receiving and local distribution of the orders.

If you have an Ital axle seven,  it's the best investment you can make.  NOBODY is doing this but Jack Webb.  Rakeway was been teasing another run of thier axle kit, but AFAIK haven't done it.