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Search: Posts Made By: Jack Shaft
Forum: Model A (1928-31) Yesterday, 04:20 PM
Replies: 21
Views: 617
Posted By Jack Shaft
Re: SNYDER’S 5.5 head vs 6.1

The tolerance for timing deviation decreases when compression is increased, the 'hammer' effect of detonation increases when you raise compression and efficiency. Detonation can lead to bearing...
Forum: Model A (1928-31) Yesterday, 10:26 AM
Replies: 21
Views: 617
Posted By Jack Shaft
Re: SNYDER’S 5.5 head vs 6.1

5.5 especially if you are using the stock distributor
Forum: Model A (1928-31) Yesterday, 07:49 AM
Replies: 21
Views: 617
Posted By Jack Shaft
Re: SNYDER’S 5.5 head vs 6.1

5.5 is a copy of the only performance combustion chamber design by Ford engineering for the model A.6.0 is a modified heart design combustion chamber.

The stock model a ford engine suffered from...
Forum: Model A (1928-31) 04-15-2021, 01:04 PM
Replies: 34
Views: 1,505
Posted By Jack Shaft
Re: Highest Reliable Compression Ratio

Look no further than the 'new and improved' 4 cylinder engine introduced in 1932..other than just a mild compression increase it incorporated all the upgrades Ford engineering noted as necessary from...
Forum: Model A (1928-31) 04-15-2021, 11:54 AM
Replies: 15
Views: 407
Posted By Jack Shaft
Re: 6 to 12 Volt & Neg ground

It's a slippery slope,that whole modifying thing..soon you'll find yourself hopping up the engine and tearing the fenders off it..
Forum: Model A (1928-31) 04-14-2021, 09:52 PM
Replies: 9
Views: 491
Posted By Jack Shaft
Re: Hi-Compression Head

I bought a complete chassis with a Mitchell OD, cast iron drums f100 steering box, fresh engine, trans and rear end.. burned in a fire.. for 1500 bucks. I get a kick out of lowballers who want to...
Forum: Model A (1928-31) 04-14-2021, 09:04 PM
Replies: 9
Views: 491
Posted By Jack Shaft
Re: Hi-Compression Head

I bought an original winfield red head and a two carb intake for four hundred a year an a half ago...I still get a thrill thinking about that price..
Forum: Model A (1928-31) 04-14-2021, 07:47 AM
Replies: 34
Views: 1,505
Posted By Jack Shaft
Re: Highest Reliable Compression Ratio

Its important to note making these changes on a stock model a engine raises the engines efficiency. Higher compression, adding fuel, using a mechanical advance distributor and making it breathe...
Forum: Model A (1928-31) 04-13-2021, 08:31 AM
Replies: 53
Views: 2,095
Posted By Jack Shaft
Re: Max Speed of a Model A in Stock Form

https://i.imgur.com/dwourac.jpg

Its a slippery slope,ford flathead four cylinder speed
Forum: Model A (1928-31) 04-12-2021, 06:02 PM
Replies: 34
Views: 1,505
Posted By Jack Shaft
Re: Highest Reliable Compression Ratio

Maybe in Maine and alot of other spots in the country a stock model is adequate..here in suburban Northern CA A stocker running without convoy protection is at the mercy of the yahoos..
Forum: Model A (1928-31) 04-12-2021, 08:13 AM
Replies: 6
Views: 378
Posted By Jack Shaft
Re: Tires for my 16" wheels

205/75/16's if you want a stock look...cheap too.. modern radial superior to bias ply tires. Amazon crazy cheap, prime puts them at your house with no shipping cost
Forum: Model A (1928-31) 04-12-2021, 07:41 AM
Replies: 34
Views: 1,505
Posted By Jack Shaft
Re: Highest Reliable Compression Ratio

Original Winfield red head,7 to 1 compression on 'hard' babbit. Babbit does not fail from compression it fails from torsional vibration of a stock crankshaft and improper timing. Any increase in...
Forum: Model A (1928-31) 04-12-2021, 07:25 AM
Replies: 53
Views: 2,095
Posted By Jack Shaft
Re: Max Speed of a Model A in Stock Form

I have a modified car, the engine develops about double the power of stock, mitchell OD, modern radial tires on 16" wheels,f100 steering box, woven shoes, cast iron drums, Teds. friction shocks all...
Forum: Model A (1928-31) 04-10-2021, 08:35 PM
Replies: 29
Views: 1,878
Posted By Jack Shaft
Re: 80 Engines SOLD Middletown, NJ

A few months back I saw 25 mostly complete engines go for 500 bucks..
Forum: Model A (1928-31) 04-10-2021, 08:48 AM
Replies: 14
Views: 731
Posted By Jack Shaft
Re: Flywheel Housing Check

Flywheel housing alignment is critical with multidisc heavy truck clutches powering 3 shaft transmissions. Not for chatter but to insure a free running mainshaft. It can be used with a model a to...
Forum: Model A (1928-31) 04-10-2021, 08:23 AM
Replies: 15
Views: 614
Posted By Jack Shaft
Re: What are you working on?

Time? you find any of that ill pay top dollar..
Forum: Model A (1928-31) 04-10-2021, 08:21 AM
Replies: 15
Views: 614
Posted By Jack Shaft
Re: What are you working on?

I'm not cutting my six pack, I'm adding to it with a six pack
Forum: Model A (1928-31) 04-09-2021, 09:09 PM
Replies: 15
Views: 614
Posted By Jack Shaft
Re: What are you working on?

Dennis you're close,what do you need?
Forum: Model A (1928-31) 04-09-2021, 06:22 PM
Replies: 15
Views: 614
Posted By Jack Shaft
Forum: Model A (1928-31) 04-08-2021, 10:03 PM
Replies: 63
Views: 2,160
Posted By Jack Shaft
Re: Why do you own a Model A?

A boy who was thrilled by his fathers story's of 'five dollar' model a's. He bought a 31 deluxe coupe in 1967.he put up a hundred, my two brothers and I put up fifty.. other than me they all lost...
Forum: Model A (1928-31) 04-08-2021, 08:07 AM
Replies: 8
Views: 877
Posted By Jack Shaft
Re: Heard on Jeopardy tonight

Ford was highly efficient with wood...gases developed during the steam bending process weren't released to the atmosphere, they were ducted to the power plant for use as fuel.

Time managed mass...
Forum: Model A (1928-31) 04-08-2021, 07:46 AM
Replies: 39
Views: 1,294
Posted By Jack Shaft
Re: Oil grooves

Journal bearings work on the hydrodynamic principle, a fixed constant at .001 oil clearance per inch of shaft diameter...10 inch shaft? 10 thousandths clearance. With the hydrodynamic principal...
Forum: Model A (1928-31) 04-06-2021, 07:30 AM
Replies: 24
Views: 1,076
Posted By Jack Shaft
Re: Repairing radiator puncture

You don't want to develop soldering skills on your only radiator. It is an acquired skill that takes some practice and experience to perform...shame you aren't closer, I have some practice dummies....
Forum: Model A (1928-31) 04-05-2021, 11:36 PM
Replies: 25
Views: 1,218
Posted By Jack Shaft
Re: B block hole repair

I'm with John,why did they groove the crack.B blocks crack and can be repaired effectively. Cracks relieve stress,properly repaired its golden.B blocks are notorious for cracking between 2 and 3...
Forum: Model A (1928-31) 04-04-2021, 09:11 PM
Replies: 22
Views: 931
Posted By Jack Shaft
Re: Plug connector options?

You use a pointer and a degree reference for the crankshaft pulley, nurex has them. Then use a cheapie tach dwell meter ,it reeds rpm off of the points. Once those two are set rig the timing light...
Showing results 1 to 25 of 500

 
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