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10-07-2019, 02:45 PM | #21 |
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Re: cracked cyl head
Looks really clean. If the coolant passages are cruddy, now would be the time for a block treatment or 2.
Tappet gap check adjustment? Last edited by 30 Closed Cab PU; 10-07-2019 at 02:47 PM. Reason: added |
10-08-2019, 09:15 AM | #22 |
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Re: cracked cyl head
Any idea why the head cracked? Possible freeze crack? I would check the underside of the water jacket on the block, LH side for possible crack(s).
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10-08-2019, 09:50 AM | #23 |
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Re: cracked cyl head
It doesn't look like a freeze crack .
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10-08-2019, 10:03 AM | #24 |
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Re: cracked cyl head
I agree, although it still wouldn't hurt to check the water jacket underside.
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10-08-2019, 10:31 AM | #25 |
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Re: cracked cyl head
I would also check the water jacket on the deck of the block .
The crack could have been caused from overheating . I would also look at timing and points gap as a possible cause . Points gap can effect timing . Too little gap hurts performance as it retards timing . Retarded timing at the rotor tip or over use of the spark causes a lot of overheating that often gets blamed on other possibilities . |
10-08-2019, 04:58 PM | #26 |
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Re: cracked cyl head
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10-09-2019, 04:51 AM | #27 | |
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Re: cracked cyl head
Quote:
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10-09-2019, 10:27 AM | #28 |
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Re: cracked cyl head
Spark occurs as the points open . Wear on the lifting block on the points causes the point gap to decrease . Too little gap causes the points to open later and slightly retards timing . I always set the points where I want them before proceeding to adjust the initial timing . For best results I set mine by the trailing edge of the rotor tip when the timing pin drops in place with NO clockwise backlash . Model A timing is probably the easiest to set of any other automobile . The two things that people have the most problem with is timing and brakes .
Last edited by Purdy Swoft; 10-09-2019 at 10:34 AM. |
10-10-2019, 12:49 AM | #29 | |
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Re: cracked cyl head
Quote:
Besides, as soon as the engine starts, you pull the timing lever down to wherever you like, and that initial setting disappears! Last edited by 40 Deluxe; 10-10-2019 at 09:07 AM. |
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10-10-2019, 09:42 AM | #30 | |
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Re: cracked cyl head
Quote:
https://www.snydersantiqueauto.com/P...tributor-timer
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