Go Back   The Ford Barn > Search Forums

Sponsored Links (Register now to hide all advertisements)

Showing results 1 to 25 of 66
Search took 0.00 seconds.
Search: Posts Made By: Terry Burtz, Calif
Forum: Model A (1928-31) 10-16-2019, 01:38 AM
Replies: 44
Views: 2,142
Posted By Terry Burtz, Calif
Re: Max Compression Ratio

Brent, I'm happy that we agree.
My problem is that I don't understand 10-uh-C humor.
Forum: Model A (1928-31) 10-15-2019, 01:44 PM
Replies: 44
Views: 2,142
Posted By Terry Burtz, Calif
Re: Max Compression Ratio

Brent, mounting a torsional damper on the flywheel end of the crankshaft will make for a smoother running engine, however, it does nothing to minimize crankshaft torsional deflections, and it does...
Forum: Model A (1928-31) 10-15-2019, 11:41 AM
Replies: 44
Views: 2,142
Posted By Terry Burtz, Calif
Re: Max Compression Ratio

...or just mount it inside the flywheel!



Adding it to the flywheel does nothing to mitigate crankshaft torsional deflections!

The following is a simple explanation of what a harmonic...
Forum: Model A (1928-31) 09-28-2019, 02:14 PM
Replies: 7
Views: 664
Posted By Terry Burtz, Calif
Re: eBay Winfield

Jim,

You should have used a Winfield SR-CC-D which has an accelerator pump to eliminate the flat spot after idle.
Winfield S carburetors did not have the accelerator pump.
The pump was at the...
Forum: Model A (1928-31) 09-10-2019, 09:23 PM
Replies: 103
Views: 4,409
Posted By Terry Burtz, Calif
Re: babbit tolerance? .000?

Brent,
My copy of A-6015 has EI 12403 3/28/1929 incorporated with no Brinell hardness mentioned.
Your copy of A-6015 has EI 13436 7/10/1929 incorporated with the Brinell hardness note added.
Forum: Model A (1928-31) 09-09-2019, 09:08 PM
Replies: 103
Views: 4,409
Posted By Terry Burtz, Calif
Re: babbit tolerance? .000?

Brent,

There are no Brinell hardness requirements on the drawings.

I agree that most dimensions are specified without telling the machinist how to do it. Some dimensions tell the machinist to...
Forum: Model A (1928-31) 09-09-2019, 12:45 PM
Replies: 103
Views: 4,409
Posted By Terry Burtz, Calif
Re: babbit tolerance? .000?

That would be like saying the engine cylinder cases (blocks) were bored to 3.8735" in size. While that is accurate statement, that was not the finished bore size after honing.

Per Ford drawing...
Forum: Model A (1928-31) 08-25-2019, 08:48 PM
Replies: 73
Views: 9,896
Posted By Terry Burtz, Calif
Re: The Terry Burtz 5 main bearing engine blocks are back on track.

Dear Terry,
I have extremely limited experience of Chinese made parts but I understand that they can be less than rigorous when it comes to materials to the point where you may get a part that...
Forum: Model A (1928-31) 08-23-2019, 01:59 PM
Replies: 73
Views: 9,896
Posted By Terry Burtz, Calif
Re: The Terry Burtz 5 main bearing engine blocks are back on track.

I want to thank everyone for Emailing encouraging comments and asking questions. Sometimes 2 or more people ask the same question. When this happens, I just pick one question to answer. Questions are...
Forum: Model A (1928-31) 07-31-2019, 11:36 PM
Replies: 10
Views: 855
Posted By Terry Burtz, Calif
Re: Throw out Bearing

Original engines do not have thrust problems.

Rebuilt engines can have thrust problems.

If the bore in the big ends of the connecting rods are not parallel to the bore in the small ends of the...
Forum: Model A (1928-31) 07-27-2019, 08:34 PM
Replies: 28
Views: 3,125
Posted By Terry Burtz, Calif
Re: Dave Lopes Fordor Model A

When a new Model A cylinder block was machined, the first machine operation was to machine the pan rail and main bearing bolt holes. During this first machine operation the front main bolt and rear...
Forum: Model A (1928-31) 07-24-2019, 03:09 PM
Replies: 73
Views: 9,896
Posted By Terry Burtz, Calif
Re: The Terry Burtz 5 main bearing engine blocks are back on track.

Again, this is not an update, but I will try to answer some questions.

Many questions ask about price. I cannot answer because I am not involved in negotiations with the factory. All I can say is...
Forum: Model A (1928-31) 07-21-2019, 02:21 AM
Replies: 73
Views: 9,896
Posted By Terry Burtz, Calif
Re: The Terry Burtz 5 main bearing engine blocks are back on track.

Steve Hackle, thank you for your post.

Your experiences mirror mine exactly with trying to have something made in the USA.

When I started this project more than 10 years ago and wanted to keep...
Forum: Model A (1928-31) 07-19-2019, 05:29 PM
Replies: 73
Views: 9,896
Posted By Terry Burtz, Calif
Re: The Terry Burtz 5 main bearing engine blocks are back on track.

This is not an update.

Thanks to all for your comments, questions, and encouragement.

I will try to answer a few questions.

Great to hear that the project is back on. Have you considered...
Forum: Model A (1928-31) 06-24-2019, 09:56 PM
Replies: 26
Views: 1,777
Posted By Terry Burtz, Calif
Re: Help rear main leak

I had a pilot friend that owned a Funk airplane.

The Funk used a Model B engine that was dry sump and inverted (cylinders down).

He changed the valve chamber gasket and went for a test flight....
Forum: Model A (1928-31) 01-18-2019, 11:32 PM
Replies: 62
Views: 5,424
Posted By Terry Burtz, Calif
Re: OK! Oldtimers, Gimme your best answer, Stuck Engine

With the conversion to inserts, separate thrust bearings are needed. This is modern engine design practice.

These thrust bearings are in the form of 2 half circles that are not rigidly attached,...
Forum: Model A (1928-31) 01-16-2019, 12:40 AM
Replies: 17
Views: 1,839
Posted By Terry Burtz, Calif
Re: counterbalanced crankshaft

Unless things have changed in the last few years, the SCAT crankshafts are made from an offshore forging that can be machined and ground to make either a 4 cyl Chevy, Model A, or Model B crankshaft....
Forum: Model A (1928-31) 01-07-2019, 04:34 PM
Replies: 30
Views: 3,070
Posted By Terry Burtz, Calif
Re: Best Rear Main Seal

The note on the drawing lists the sequence of manufacturing. After all heat treating, the final sentence of the drawing note reads: Finish machine & grind.

This last operation will remove any...
Forum: Model A (1928-31) 01-04-2019, 10:50 PM
Replies: 30
Views: 3,070
Posted By Terry Burtz, Calif
Re: Best Rear Main Seal

The journals are no harder than the remainder of the crankshaft. Reducing them to Model A size won't hurt anything other than reducing the strength of the crankshaft. They don't need to be harder...
Forum: Model A (1928-31) 01-03-2019, 11:35 PM
Replies: 30
Views: 3,070
Posted By Terry Burtz, Calif
Re: Best Rear Main Seal

The Lucky Star,

Thanks for asking for suggestions.

Any machine shop with a large enough metal lathe (something like 16x40) should be able to machine your crankshaft main journals to .015 inch...
Forum: Model A (1928-31) 12-26-2018, 03:51 PM
Replies: 2
Views: 918
Posted By Terry Burtz, Calif
Worst Rear Main Seal

There was a recent thread on this forum titled "Best Rear Main Seal", It can be found by doing a Google search on:
https://www.fordbarn.com/forum/showthread.php?t=255749

Before reading this new...
Forum: Model A (1928-31) 12-21-2018, 12:33 AM
Replies: 30
Views: 3,070
Posted By Terry Burtz, Calif
Re: Best Rear Main Seal

Dave in MN,

You are correct that having the seal rubbing surface ground at the same time the rear crankshaft journal is ground is the best method for concentricity. This method also provides a...
Forum: Model A (1928-31) 12-18-2018, 02:23 PM
Replies: 30
Views: 3,070
Posted By Terry Burtz, Calif
Re: Best Rear Main Seal

The Lucky Star,

A discussion about rear main seals is similar to discussions on this forum about what oil to use.

I suggest that you educate yourself by talking with people who run at...
Forum: Model A (1928-31) 10-09-2018, 10:25 PM
Replies: 39
Views: 2,544
Posted By Terry Burtz, Calif
Re: Diff leaking around the bolts

Permatex #2 is not just another silicone.

There is no silicone in Permatex #2.

Permatex #2 is a sealant that is alcohol based.

Silicone based sealants were developed during the "Space...
Forum: Model A (1928-31) 09-24-2018, 01:33 PM
Replies: 11
Views: 1,008
Posted By Terry Burtz, Calif
Re: Engine stud hole retap question/confusion

Tapping a hole to 1/2-13 UNC when it has already been tapped for a 7/16-14 Helicoil is a very bad idea. The hole is already too large and it is possible that the stud will pull out of the block when...
Showing results 1 to 25 of 66

 
Forum Jump
Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 01:33 PM.