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Search: Posts Made By: J and M Machine
Forum: Model A (1928-31) 02-19-2024, 09:01 AM
Replies: 29
Views: 5,035
Posted By J and M Machine
Re: Motor rebuild

536723

536724Quote: See I have no doubt that model a motors can be strong but I dont realy beleve that there any one out there that can rebuild them like henry made them.

You're right as we...
Forum: Model A (1928-31) 08-25-2023, 07:53 AM
Replies: 11
Views: 1,051
Posted By J and M Machine
Re: 1930 A crank threads

Yes: https://www.napaonline.com/en/p/BK_7703087
Forum: Model A (1928-31) 04-11-2023, 02:12 PM
Replies: 2
Views: 776
Posted By J and M Machine
Re: Crankshaft bent????

The crank isn't bent , most likely indicated it off worn main journals instead of the gear area when it was ground. I see alot of this..
If you have .009" you're proving what you've already...
Forum: Model A (1928-31) 02-18-2023, 09:29 AM
Replies: 17
Views: 3,195
Posted By J and M Machine
Re: Strange head gasket issue

First issue is the cylinder head isn't flat out of the box when you purchased it. I have enclosed pictures of Snyder/TODD head painted blue and you can see why your gasket is pushed out.
To Date...
Forum: Model A (1928-31) 01-03-2023, 06:37 PM
Replies: 12
Views: 1,757
Posted By J and M Machine
Re: Connecting rod balancing

This is a "Commercial set up" We use
https://www.jandm-machine.com/balancing.html
https://www.cwtindustries.com/multi-bal%205500.htm
Forum: Model A (1928-31) 12-16-2022, 08:11 AM
Replies: 7
Views: 1,242
Posted By J and M Machine
Re: A Engine in a Movie

Could of been this one.
https://www.facebook.com/media/set/?set=a.1694313307348901&type=3
Forum: Model A (1928-31) 11-03-2022, 08:20 AM
Replies: 19
Views: 3,762
Posted By J and M Machine
Re: Burtz Flywheel

Flywheel weight being lighter or heavier is not going to increase vibration.
We would recommend taking your flywheel and pressure plate to a machine shop and having it balanced as a unit.
There's...
Forum: Early V8 (1932-53) 11-03-2022, 08:11 AM
Replies: 41
Views: 8,437
Posted By J and M Machine
Re: Flatheads breaking off engine stands and falling.

502484

I have enclosed pictures so people can see what Larrys40 means.
This is the best way to hold the engine without damage as holding a 59a block from flywheel side will crack and we have...
Forum: Early V8 (1932-53) 11-03-2022, 08:03 AM
Replies: 23
Views: 2,887
Posted By J and M Machine
Re: Flathead block cleaning....

If you have the time it's one thing as no one would realize how much time you took to do it all.
We utilize thermal cleaning as takes 1 hour to clean it inside and out.
Thermal cleaning removes...
Forum: Model A (1928-31) 10-26-2022, 05:17 PM
Replies: 15
Views: 3,633
Posted By J and M Machine
Re: New Babbitt Mains - How Tight

Have you checked the clearance of the mains?
On a Model B clearance should be .002" on rods and mains
There will be a distinct pull to initially get the crank moving this is called "Stiction"....
Forum: Model A (1928-31) 10-26-2022, 05:13 PM
Replies: 9
Views: 1,783
Posted By J and M Machine
Re: crankshaft rope seal question

Model A engines don't use a "rope seal" just a slinger.
I have enclosed pictures of the crank and rear main so you can see what stock Model A should look like.
www.jandm-machine.com
Forum: Model A (1928-31) 07-23-2022, 08:51 AM
Replies: 39
Views: 4,904
Posted By J and M Machine
Re: Valve Job??

Yes: You are correct as I see water stains in front cylinder also. Engine has been losing water/sitting for a really long time. Chances are it's not just valve seats it's the entire engine.
We are...
Forum: Model A (1928-31) 07-22-2022, 06:20 PM
Replies: 39
Views: 4,904
Posted By J and M Machine
Re: Valve Job??

I would recommend having the block crack checked as it may be cracked in this valve seat. I see alot of water leaked into this cylinder from valve area and stains on cylinder wall. It's a common area...
Forum: Model A (1928-31) 04-13-2022, 06:04 PM
Replies: 16
Views: 2,485
Posted By J and M Machine
Re: Engine Block Crack Problem

You could try that but with so much heat focused on the valve seat crack it'll only get worse. It's a common area on Model A engines to crack, caused by overheating.
We can repair it permanently but...
Forum: Model A (1928-31) 04-01-2022, 08:38 AM
Replies: 17
Views: 1,807
Posted By J and M Machine
Re: Clearance Crank Pins - Connecting rods

Quote:- Are there different clearance specifications for babbitt rods and insert rods?
- Is clearance 0.001 inch recommended for babbitt rods only?

- What do you think about clearance 0.002 inch...
Forum: Model A (1928-31) 03-24-2022, 08:07 AM
Replies: 18
Views: 2,402
Posted By J and M Machine
Re: looking for a machinist

I would try these guys. Same state.http://www.antiqueautoranch.com/newwebsite/AntiqueAutoRanch/antique-auto-ranch.html
Forum: Model A (1928-31) 02-11-2022, 05:53 PM
Replies: 11
Views: 1,698
Posted By J and M Machine
Re: reboring a sleeved cylinder question

Yes 1/16" is .0625" and that's the minimum that the sleeve manufacturers recommend; at .043" the sleeve will fail.
Forum: Model A (1928-31) 02-11-2022, 08:25 AM
Replies: 11
Views: 1,698
Posted By J and M Machine
Re: reboring a sleeved cylinder question

If your block has been sleeved back to standard, depending on which sleeve they installed. First size sleeve has an outside diameter of 4.063" which is already .100 over. Boring it to .100" isn't...
Forum: Model A (1928-31) 01-31-2022, 09:23 AM
Replies: 16
Views: 1,864
Posted By J and M Machine
Re: Cracked valve cover

There aren't any new ones available. What you're describing is a common problem as people overtighten the oil return pipe and it cracks the spokes.
We do the crack repair on those covers as finding...
Forum: Late V8 (1954+) 12-16-2021, 06:48 PM
Replies: 8
Views: 1,078
Posted By J and M Machine
Re: New engine time!

Believe it or not it was stored in a climate control garage. bought it for his wife and never drove it. We think it was like this when he bought it.
We were able to crack repair the heads since we...
Forum: Late V8 (1954+) 12-16-2021, 12:10 PM
Replies: 8
Views: 1,078
Posted By J and M Machine
Re: New engine time!

Not to hijack the post.
We're doing one now that sat for ten years and came from Colorado.
Customer was very surprised when tried to start it after ten years and saw this underneath valve covers. ...
Forum: Model A (1928-31) 12-09-2021, 02:44 PM
Replies: 17
Views: 2,532
Posted By J and M Machine
Re: New Block

The cracking is caused by overheating the engine as the two center exhaust seats are the hottest part and has nothing to do with "metallurgy". Do the same to the Burtz block and it will look just...
Forum: Model A (1928-31) 12-09-2021, 09:31 AM
Replies: 17
Views: 2,532
Posted By J and M Machine
Re: New Block

Yes that block can be fixed. This is a common area of cracking from exhaust seats to cylinders. The cracks would need to be repaired with new seats installed and cylinder would need to be sleeved....
Forum: Model A (1928-31) 11-19-2021, 04:35 PM
Replies: 70
Views: 22,577
Posted By J and M Machine
Re: Cost of Running Burtz Engine

We see the price quoted on this post as "6500 and still need flywheel pressure plate, Etc" ?

Typical customer's engine rebuild from us for complete engine with pressure plate / flywheel; ready to...
Forum: Model A (1928-31) 07-14-2021, 05:21 PM
Replies: 10
Views: 1,197
Posted By J and M Machine
Re: 1931 Cadillac

Tell him to check this site as there are many knowledgeable people here, and they know his car. https://www.cadillaclasalleclub.org/

Tell him to drop oil pan and clean out sludge.!

Just like a...
Showing results 1 to 25 of 352

 
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