A with a B dist timeing?

[Beater]

ok I have searched here and found some info. decided to upgrade to a B dist in my 31 A motor. timeing has to be a bit diff I understand that. from what I read as soon as the motor is running at idel its going to be at 18 deg BTDC is this correct?
if I figure out with the pin where TDC is, can I mark off 18 deg on the pully , roll it around to that mark, and continue to set the distrib as it was an A?

[Tiny]

Good info here:
http://www.fordbarn.com/forum/showthread.php?t=133231

[Beater]

ty muchly

[H. L. Chauvin]

CORRECTIONS ON FORMER REPLY:


1. In the following post, (mentioned in Reply No. 2 above):
http://www.fordbarn.com/forum/showthread.php?t=133231; I made some corrections in Reply No. 5 dated 03-05-2014 and Reply No. 10 dated 08-31-2014.

2. The degrees advanced for the B distributor readings were changed from 9-1/2 degrees to "19" degrees; and the measurement on the circumference crankshaft pulley was changed from approximately 7/16" to "7/8" "

3. A note of caution when starting a Model B engine is that one does "not" have a spark lever to retard the spark while starting; hence the timing must be set very accurately if using a hand crank or starter in order to avoid engine kickback.

4. The 1934 Motors Book recommends setting Model B ignition points at 0.18"; hence if one sets Model B points at 0.22" ..... the spark is advanced and the engine could possibly kick back.

5. If one has a distributor cam that is not perfect, and the lobe heights vary from lobe to lobe, the contact points opening can vary from lobe to lobe ....... hence, the engine may not kick back on a low lobe ....... but may kick back on a distributor cam high lobe.

6. When using the timing cover mounted timing indicator adjacent to the crankshaft pulley, because of the distance between the markings on the fixed metal timing indicator and the marks on the crankshaft pulley below, the readings change as one moves his head up or down ........ more consistent readings may be obtained if one were to place one's chin, fixed on the passenger side fender to attempt to always obtain the same more accurate readings.

[Tiny]

I was hoping you would chime in.
Thanks

[Kurt in NJ]

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The last 3 original B dist I had on the dist machine did not advance properly-- they advanced too little and too late--- so before you install it it should be run up on a machine-- or checked with a tach and timing light for proper operation

[PAracer]

Kurt,
What distributor curve are you comparing your results too? I purchased a B distributor but want to check it before putting it into my car.
Thanks,
Mike

[Synchro909]

Beater,
You don't say why you want to change to a B distributor but if it's to have automatic advance, have you considered one of those advance mechanisms that go in the valve chamber? I think they are made by Nurex.
Here is Brattons listing for it. https://www.brattons.com/automatic-s...ng-system.html

[Tiny]

Originally Posted by Synchro909

Beater,
You don't say why you want to change to a B distributor but if it's to have automatic advance, have you considered one of those advance mechanisms that go in the valve chamber? I think they are made by Nurex.
Here is Brattons listing for it. https://www.brattons.com/automatic-s...ng-system.html

I've read good and bad about those. Do your homework before you run one

[H. L. Chauvin]

1. Spare parts for B distributors are offered on line by Renner's Corner, Manchester, Michigan.

2. If new solid bronze bushings are provided in a B distributor, please note that one of the new bushings will block the horizontal distributor oil passage unless a new hole is carefully provided in the side of the new bushing ........... appears important because Ford recommended oiling A & B distributor bushings every 500 miles or so.

[Beater]

I purchased a B dist from renners, I want to change it out so that the kids can drive it without me worrying about where they are setting things.

[700rpm]

Originally Posted by Beater

I purchased a B dist from renners, I want to change it out so that the kids can drive it without me worrying about where they are setting things.

Why not just teach them to drive it right?

[Beater]

yes why not. some kids learn better than others and im not into replaceing bearings and or starters . this is the best option