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Forum: Model A (1928-31) 03-22-2024, 05:18 AM
Replies: 41
Views: 3,196
Posted By SAJ
Re: Pressurized center main bearing?

The hydrodynamic pressure in car engines needed to keep the bearing surfaces separated is far in excess of oil pump feed pressure. Anywhere from maybe 1000 to 6000 or more psi depending on engine...
Forum: Model A (1928-31) 03-15-2024, 03:36 PM
Replies: 7
Views: 660
Posted By SAJ
Re: cracked main bearing

I am thinking it may be possible to affix the thrust face with tiny countersunk screws much as is done to retain aftermarket bronze thrust washers. A simple drill and tap job. A screw could even be...
Forum: Model A (1928-31) 01-24-2024, 03:34 PM
Replies: 18
Views: 1,380
Posted By SAJ
Re: car heaven

Synchro, New Zealand is a tiny country getting even smaller day by day as we pump ironsand from our beaches into Japanese carrier ships moored off the coast.
At least Aussie mines are inland and...
Forum: Model A (1928-31) 12-25-2023, 04:47 PM
Replies: 16
Views: 1,245
Posted By SAJ
Re: Wheel Weights

I had spoke weights on one car and they worked fine. We changed the 19's to 16 inch V8's, run tubeless, at my wife's request (her tudor) and I used stick-ons then because they were to hand on my...
Forum: Model A (1928-31) 12-25-2023, 04:33 PM
Replies: 9
Views: 687
Posted By SAJ
Re: RHD air filter?

DAVE, that is a pretty small filter. I imagine air balancing would be needed to equalise vacuum created inside this pod with the ambient pressure in the float bowl, otherwise mixture will be enriched...
Forum: Model A (1928-31) 12-25-2023, 04:13 PM
Replies: 6
Views: 742
Posted By SAJ
Re: Turn signals - not working when engine running

I have found the same thing on several 12 volt old cars. I shortened one coil wire from 7000 ohms down to 3000 ohms, at which stage the RF interference was enough to stop the electronic flasher cans...
Forum: Model A (1928-31) 12-24-2023, 04:37 PM
Replies: 9
Views: 687
Posted By SAJ
Re: RHD air filter?

Arnold types and posts quicker than me!! I have many XMas greetings texts interrupting me as I type. It is Xmas morning here.
Merry Xmas everyone
SAJ in NZ
Forum: Model A (1928-31) 12-24-2023, 04:28 PM
Replies: 9
Views: 687
Posted By SAJ
Re: RHD air filter?

Here is a couple I did. Slipped onto Model B carbs with a greased felt washer to seal since there is no room for a clamp due to the 2 tooth column proximity. The elbow is 2 inch plumbers copper. The...
Forum: Model A (1928-31) 11-26-2023, 04:17 PM
Replies: 11
Views: 1,070
Posted By SAJ
Re: 3.54:1 Differential Overhaul

8EL, your calculations assume an isothermal (constant temperature) cylinder compression, whereas the rapid upwards piston stroke makes the event closer to an adiabatic (no heat loss) event. As an...
Forum: Model A (1928-31) 11-11-2023, 03:00 PM
Replies: 10
Views: 945
Posted By SAJ
Re: Ford poured rear bearing

Chuck, I cannot recall the pics, but I think an open groove will spill the pressure from the dynamic hydraulic wedge that is necessary for separation of the surfaces.
Thinking about that I recall...
Forum: Model A (1928-31) 10-27-2023, 04:04 PM
Replies: 24
Views: 1,369
Posted By SAJ
Re: silicone head gaskets

In 2017 MikeK observed that 50/50 antifreeze will trash a silicone-sealed gasket. That makes sense to me. I have the Snyder silicone gasket under a 5.5 to 1 Snyder head in our Tudor for about 10000...
Forum: Model A (1928-31) 10-23-2023, 10:13 PM
Replies: 9
Views: 1,225
Posted By SAJ
Re: 1.73" intakes with a Burtz 6.5 head

Dave Mossman in my workshop found the same thing. He had half a dozen Burtz heads milled straight down at the interference point with a 2 inch milling cutter. Terry commented that the water jacket...
Forum: Model A (1928-31) 10-07-2023, 04:42 AM
Replies: 18
Views: 1,475
Posted By SAJ
Re: Model A and B valve lifter difference

Here is a link to a cam lobe picture that I found in a members car in 2014. At the time Jim Brierly commented in the second post that it did look like too small a followed foot for the lobe grind....
Forum: Model A (1928-31) 04-27-2023, 03:55 PM
Replies: 125
Views: 22,704
Posted By SAJ
Re: MMO in the Gas

Werner, wintergreen oil contains methyl salicylate. An ester of salicylic acid and methanol. It is a good wetting and creeping agent on metals, smells nice and is useful as an embrocation on the...
Forum: Model A (1928-31) 04-12-2023, 06:45 AM
Replies: 14
Views: 1,751
Posted By SAJ
Re: B Carb Runs Lean @45 MPH

Stage, my motor is the same as yours. Flow tuned jets, B carb, stipe cam, large inlets, 6 to 1 compression. Running 95 or 98 octane non-ethanol gas. With GAV open 1/4 turn W-6Y plugs were barely off...
Forum: Model A (1928-31) 04-01-2023, 04:27 PM
Replies: 5
Views: 1,532
Posted By SAJ
Re: 31 Pickup Surging at Idle and Low Speed

On a Zenith one must screw the mixture adjustment inwards(closing the air path) to enrichen, not counter clockwise . It is an air control valve, not a fuel valve.
SAJ in NZ
Forum: Model A (1928-31) 03-27-2023, 03:23 PM
Replies: 48
Views: 7,897
Posted By SAJ
Re: European classic tyres

Ronn,
Nice! Look great.
SAJ in NZ
Forum: Model A (1928-31) 02-14-2023, 02:42 AM
Replies: 26
Views: 3,124
Posted By SAJ
Re: Need some pistons Knurled

I have a piston expander from 1930's called a Koetheriser. It expands by squeezing the skirt into a more cam-shaped form and then stress relieving the piston by shot blasting inside with small steel...
Forum: Model A (1928-31) 01-25-2023, 05:25 AM
Replies: 22
Views: 4,263
Posted By SAJ
Re: Restoring steering wheel from broken pieces.

Great methods. For black bakelite and steering wheel repairs I take a 1 to 1 epoxy (polyamide type hardener and resin), mix in a pinch of black iron oxide powder as used to colour cement (Bayer 318M...
Forum: Model A (1928-31) 10-28-2022, 03:07 AM
Replies: 16
Views: 1,661
Posted By SAJ
Re: Clutch Help/Guidance

A broken centre float a motor mount made my clutch judder badly. Proof to me that those who leave it out of the installation entirely are due for trouble.
SAJ in NZ
Forum: Model A (1928-31) 10-22-2022, 04:03 AM
Replies: 8
Views: 1,623
Posted By SAJ
Re: lubricating brake components?

I agree with Dave. I use Rocol MTLM. A 50% dispersion of molybdenum disulphide in a bentone (non-melting) grease base. I use it on the distributor cam too. It is called "assembly and running in...
Forum: Model A (1928-31) 10-10-2022, 04:29 AM
Replies: 18
Views: 2,239
Posted By SAJ
Re: gas (fuel) canister, period correct

Here's mine in a 31 Tudor. Out of the way of the doors.
SAJ in NZ
Forum: Model A (1928-31) 09-14-2022, 04:54 AM
Replies: 46
Views: 5,868
Posted By SAJ
Re: Help! Turn signal electrical issue has me stumped!

The model A ignition HT wire radiates a lot of RF interference. We had a backing camera on a 12 volt Town Car that would light up with the engine off and and go blank with it running. With the...
Forum: Model A (1928-31) 09-04-2022, 04:40 PM
Replies: 5
Views: 876
Posted By SAJ
Re: Electrical problems

Well done Neshkoro.
Great that you diagnosed it without replacing parts randomly, cleaning plugs, points, retiming etc etc.
Intermittent problems are sometimes hard to spot.
SAJ in NZ
Forum: Model A (1928-31) 08-04-2022, 05:49 AM
Replies: 37
Views: 5,825
Posted By SAJ
Re: Starter Drive Bendix Spring Question

I agree with Synchro909. I have personally broken 2 modern drives made in India and one made in USA. All on a 6 volt system. They not only partially engage the ring gear but come to a halt on their...
Showing results 1 to 25 of 500

 
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