I only got the stand itself. I have a full 1800E booster with all the parts and was going to use a high-strength threaded rod for the extension. The booster can has a perfect dustboot.

From you, specifically, I was hoping for the dimensions for that small mounting plate

I figure that I could either search for a 140 booster and MC to mount to the big-end stock plate and just modify the pedal-box side

- or -

remove the big-end mount and have someone use the 1800E standoff as a pattern to cut me a flange for that side of the standoff. Keeping my (already on hand and working fine) 1800E booster/MC.

My only concern with the second option is that the 140 tube is a bit narrower than the 1800 tube and I worry that the dustboot might rub in there....

I'm also a little hesitant to permanently modify the booster stand, just in case I find a good 140 pancake and MC soon.

Hello,

The 140 brake booster is a single servo type, as opposed to the 1800e brake booster which is dual servo type. The advantage to the dual servo is a smaller size can equal a larger unit single servo type. The disadvantage is the dual servos cost more to have rebuilt.

I looked in my factory Volvo repair manuals on specfications for the 2 different styles of brake booster and could find none.

I believe that they both produce about the same amount of boost as the 2 cars where not that much different in weight and both use the exact same 4 piston front calipers and the same rear 2 piston rear calipers.

164 also use a dual servo brake booster, but it is larger in diameter than the 1800e dual servo booster.

For ease of use, I have decided to use a 140 brake booster/master on my 1968 122 as the 140 brake booster stand is very easy to modify to make fit in place of the single circuit brake master on all pre-1969 122 with a manual transmission.



--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90501