Yeah, I know about this trick, but I didn't want to confuse a
self-declared novice with something that wasn't well documented in the
manual (actually, I didn't realize they even mentioned this). Plus, if
there wasn't enough adjustment available there, he'd have to do the clamp
bolt thing anyway. Might as well get it straightened out once --
shouldn't have to dink with it again anytime soon.
Bob Howard had this to say:
> With respect to #3--try to avoid loosening and tightening the clamp
>bolt. The plate that bolts to the block (Moss "Clamp & Bolt
>assy--#153-400) has oval holes so you can get a fair amount of adjustment
>by moving the plate. This minimises wear on the thin shell of the
>distributor that is caused by adjusting with the clamp bolt. There is a
>description of this in the workshop manual, but it's not very clear and
>is not emphasised.
>Bob
>
>
>On Sun, 30 Apr 2000 12:40:52 -0700 Max Heim <mvheim@studiolimage.com>
>writes:
>> 1. No, you don''t have to pull on it, it just rotates. There is an
>> internal spring, so there is some resistance.
>> 2. Yes, you can hit an end point in either direction. I *think* I
>> recall
>> that the entire range of adjustment is less than 10 degrees. If you
>> run
>> up against the end point you will have to rotate the distributor
>> itself
>> to get the timing where you want it.
>> 3. To rotate the distributor you loosen the clamp bolt on the collar
>>
>> which is bolted to the block (see your manual). Be very careful when
>>
>> retightening this bolt! The part of the distributor housing where it
>>
>> clamps is merely a thin pot-metal shell, and is easily crushed. The
>> clamp
>> can act as a pair of shears, especially if it is not on perfectly
>> straight. This is probably the single most common cause for
>> distributor
>> replacement.
>> 4. A hint: when you have the clamp bolt loose, first get the Vernier
>> in
>> the center of its range of motion, then adjust the timing by
>> rotating the
>> distributor. This will set you up for next time, so that you will be
>> able
>> to use the Vernier for up to 5 degrees adjustment A or R from where
>> you
>> are now.
>>
>> Good luck.
>>
>> Rick Wagner had this to say:
>>
>> >OK..Thanks for all the replies yesterday about pulling the vacuum
>> hose
>> >off. Now I have used the timing light, and it is off some so I want
>> to
>> >adjust it. The Bently book indicated that 55 clicks with the
>> Vernier (sp?)
>> >in either the A or R direction can adjust it 5 degrees. My question
>> is how
>> >difficult should it be to move that little vernier wheel? is there
>> a set
>> >on it, do you need to pull down on it or push up b4 turning (Like
>> one of
>> >those safety caps on a pill bottle) Also is the Vernier a dial that
>> will
>> >just continue to rotate or if you go so far in the A or R direction
>> will
>> >you hit and end point?
>> >
>> >Thanks in Advance (Every day I am learning new things)
>> >
>> >-Rick
>> >--
>> >-----------
>> >Rick Wagner
>> >'71 MGB
>> >
>> >
>> > "No amount of genius can overcome
>> > a preoccupation with detail"
>> >
>> >
>> >
>>
>>
>> --
>>
>> Max Heim
>> '66 MGB GHN3L76149
>> If you're near Mountain View, CA,
>> it's the red one with the silver bootlid.
>>
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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