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Search: Posts Made By: hazelhoff
Forum: Model A (1928-31) 04-25-2021, 01:24 PM
Replies: 11
Views: 2,766
Posted By hazelhoff
Re: Main Bearing Oil Groove Opinions

I know this is an old thread but nevertheless ...
Herm and James seem to agree on an oil film carrying the load of the crankshaft. I do too ! But, pour some oil on your counter and stack some...
Forum: Model A (1928-31) 04-19-2021, 09:19 AM
Replies: 0
Views: 254
Posted By hazelhoff
knowledge on oil

I found a very interesting story on oil for an early Corvair. The writer is Richard Widman. I asked him what is best to use in a Model A.
Please find his answer attached.

Henk

Henk 461541
...
Forum: Model A (1928-31) 04-14-2021, 03:10 PM
Replies: 3
Views: 223
Posted By hazelhoff
Re: oil grooves

the difference when spiral grooved
Forum: Model A (1928-31) 04-14-2021, 12:33 PM
Replies: 5
Views: 517
Posted By hazelhoff
Re: Light Bar Repaint Question

I had the same issue, headlight ground I mean. I usually wrap some copper wire around the bar-to-fender bolts before putting them in. An old farmers trick ... on old tractors the rear fender lights...
Forum: Model A (1928-31) 04-14-2021, 12:27 PM
Replies: 9
Views: 610
Posted By hazelhoff
Re: Hi-Compression Head

Watch your bearings love the 7:1 !

Henk
Forum: Model A (1928-31) 04-14-2021, 12:15 PM
Replies: 12
Views: 485
Posted By hazelhoff
Re: Upholstery Question

I join Tacoma Bob, just over 4 k. In total will do the job.
Forum: Model A (1928-31) 04-14-2021, 12:10 PM
Replies: 12
Views: 485
Posted By hazelhoff
Re: Upholstery Question

By a kit from Classtique and have it installed by on old guy in the trim shop. Worked out fine with my ‘29 Tudor !

Henk
Forum: Model A (1928-31) 04-14-2021, 08:07 AM
Replies: 3
Views: 223
Posted By hazelhoff
Re: oil grooves

Brent, I would appreciate that very much ! Meanwhile I bought the calculating software I was talking about. When I can spare the time I will try to use it.

Henk
Forum: Model A (1928-31) 04-14-2021, 07:43 AM
Replies: 3
Views: 223
Posted By hazelhoff
oil grooves

attached is a copy of an article on Model A oil grooves
Forum: Model A (1928-31) 04-13-2021, 01:54 PM
Replies: 10
Views: 892
Posted By hazelhoff
Re: Bolt and nut orientation

Brent,

Correct, a 55A Tudor 1929. RQ upper to lower ! Nuts up, bolts down.

Pffff

Henk
Forum: Model A (1928-31) 04-13-2021, 01:25 PM
Replies: 14
Views: 596
Posted By hazelhoff
Re: Does Anyone Restore Boyce Motometers ?

BTW I had my tube restored in the UK. Went well, but the cost was some 300 dollars
Forum: Model A (1928-31) 04-13-2021, 01:24 PM
Replies: 14
Views: 596
Posted By hazelhoff
Re: Does Anyone Restore Boyce Motometers ?

I agree ! By a new one. If you want it nickeled, just burn the chrome of using acid.

Henk
Forum: Model A (1928-31) 04-13-2021, 12:39 PM
Replies: 67
Views: 3,638
Posted By hazelhoff
Re: Engine not starting - checked everything - no more idea

Of course Michael. There is a lot of good stuff coming from Holland

Grusse,

Henk
Forum: Model A (1928-31) 04-12-2021, 03:48 PM
Replies: 10
Views: 892
Posted By hazelhoff
Re: Bolt and nut orientation

Interesting question Pluck ! Personally I have struggled with the lack of information very often !
For instance, the bolts that tie together the upper body side panels to the lower ones ... I put...
Forum: Model A (1928-31) 04-09-2021, 12:52 PM
Replies: 67
Views: 3,638
Posted By hazelhoff
Re: Engine not starting - checked everything - no more idea

I had the same thing after rebuilding the engine. Everything was OK, but it did not run !

Finally checked the camshaft timing. That was completely wrong, 10% off !

Do check the timing, cam gear...
Forum: Model A (1928-31) 04-09-2021, 12:00 PM
Replies: 21
Views: 1,321
Posted By hazelhoff
Re: Adding turn signals

Being a purist too I ended up with Brattons and bought a wiring harness including the turn signals. Advantage to me was the Brattons kit uses the rear lights, so I only had to put the front ones on...
Forum: Model A (1928-31) 04-08-2021, 12:40 PM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Since I started this thread, I’d like to thank everybody for their contributions ! This may change the way of thinking about Model A Bearings, which is good. The original design - being a purist I...
Forum: Model A (1928-31) 04-08-2021, 04:57 AM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Rick,

The rebuilder also out felt in the groove holding the oilslinger. How do I get that out of the upper part of the bearing end with the crakshaft still in place ? Any ideas ?

Henk
Forum: Model A (1928-31) 04-08-2021, 04:48 AM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

To answer the last part of your comment. The rebuilder was a DAF diesel rebuilder. DAF is a European Truck manufacturer owned by PACCAR (Kenworth etc.) these days. 30 years ago it was all inserts, no...
Forum: Model A (1928-31) 04-08-2021, 04:29 AM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Rick, I donít remember where, but I am sure I have seen it pictured somewhere ! It was an oval longitudal shape taking up about half of the length of the bearing ...
Thx again.

Hdnk
Forum: Model A (1928-31) 04-07-2021, 01:57 PM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Brent,

I hope I haven’t offended you ! Myth to me means the thinking within Ford engineering late 20-ies. NOT your valuable documentation !

Henk
Forum: Model A (1928-31) 04-07-2021, 01:23 PM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

What grooves do is promote leakage ! Grooves in the lower part, the bearing cap, will create leakage in pushing the oil up the way it came from. Up to the wells and from there, up to the oil entry...
Forum: Model A (1928-31) 04-07-2021, 01:14 PM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Oil pressure builds up in your bearing. To accommodate this, the babbitt is not finished very smooth ! It has a certain RMS roughness. The oil film will be a function of crank revolutions, roughness...
Forum: Model A (1928-31) 04-07-2021, 01:08 PM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Now what I would like to add is some theory of flow mechanics. Everybody knows the phenonemum of aqua planing I guess. A function of car weight, speed, tire size, water film thickness and GROOVES....
Forum: Model A (1928-31) 04-07-2021, 01:00 PM
Replies: 39
Views: 1,551
Posted By hazelhoff
Re: Oil grooves

Gentlemen,

Thank you for all the help ! Much appreciate it !
I now know how the grooves should run and their size, thanks to Brent. I would like to talk about oil grooves a little more, but my...
Showing results 1 to 25 of 284

 
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