• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

TR6 Distributor Gear Mounting Question Need End Float Washer

Share this page

Got_All_4

Got_All_4

Luke Skywalker
Country flag
Offline
Finally got my cam back and reinstalling everything this weekend. Ran into a little dilemma. The distributor drive figure in the Haines manual shows that there is to be a washer between the top of the oil pump bush and the distributor drive gear. First of all what is the process to get the correct measurement for A&B for the thickness of the washer? Suppose to be a 5k end float at A. second is that Moss does not show this washer in any of their illustrations so I would have to believe it is not available at lease thru them 20210528_175224.jpg. When i took it out I don't remember there being one but there are 2 stacked gaskets for the distributor.
20210528_175224.jpg
20210528_175224.jpg
 
There is NO washer there. If you look at a manual you will find the process for using a washer to determine what the distance is at that location. Then to get the proper end float distance you use gaskets on top of the pedestal ( location B in your diagram) to obtain that distance. What you want is a space at location A not a washer.
Charley
 
Yes, that's correct about the gaskets, but I always wonder how the gaskets could possibly maintain their thickness. Won't a few years of moisture and oil cause the gaskets to vary in thickness and ruin the plan for so many 1000ths of an inch to remain constant? Another issue I always have is getting the pedestal seat to be square so that the measurement is correct and meaningful. With a washer in there, I can rock the pedestal, so how can it possibly be accurate unless we are assured the setup is square to the shaft. Confusing, I know, but I'm not sure how better to say it.
 
It is a very thin paper shim, called a "gasket". Moss p/n 697-145. Ill. # 117. Be careful the bolts and the center hole in the shim fit with clearance. The "dummy" spacer should truly flat, and buy shims as req'd.

LeT
 
Back
Top