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Search: Posts Made By: johnneilson
Forum: Model A (1928-31) 03-22-2024, 10:05 PM
Replies: 5
Views: 576
Posted By johnneilson
Re: what is this? mag drive?

It is an attempt at a side drive magneto
The gear is properly sized for a mag with 2:1 gear reduction or a governor

Most aircraft mags are 2:1 or crank speed.

J
Forum: Model A (1928-31) 03-14-2024, 10:06 AM
Replies: 21
Views: 7,209
Posted By johnneilson
Re: Model B engine advantages?

Considering this thread is 10 years old it still holds true with the exception of Terry Burtz accomplishing seemingly the impossible feat

J
Forum: Model A (1928-31) 03-11-2024, 03:26 PM
Replies: 16
Views: 1,101
Posted By johnneilson
Re: Donovan 4 Cylinder

So yes Terry
The diamond blocks have been used
I am someone will have an issue and that will change

J
Forum: Model A (1928-31) 03-11-2024, 12:42 PM
Replies: 16
Views: 1,101
Posted By johnneilson
Re: Donovan 4 Cylinder

Chris

The V4 classes are Vintage strictly meaning original blocks of pre 1935 manufacture
You can run the Donovan in the displacement classes but the architecture is a disadvantage

J
Forum: Model A (1928-31) 03-09-2024, 09:33 AM
Replies: 16
Views: 1,101
Posted By johnneilson
Re: Donovan 4 Cylinder

This was a couple years ago, "D" block and a Arnold Birner head a friend was making.

I did a build on another "D" block made for the Birner head, without intake ports or valve chambers.

J
Forum: Model A (1928-31) 03-08-2024, 05:06 PM
Replies: 29
Views: 2,089
Posted By johnneilson
Re: high conpression head ??

Yes
There is a balance point between C/R and airflow
This has been demonstrated on flow bench testing
All moderate c/r heads will probably perform well within reason
Spark plug placement is...
Forum: Model A (1928-31) 03-04-2024, 09:08 PM
Replies: 30
Views: 2,078
Posted By johnneilson
Re: Safety cage?

Hmm,
Adding a cage to any street car is not recommended, a properly designed and built cage will become dangerous unless you wear a helmet.

I have looked at a couple sedan type model A's that had...
Forum: Model A (1928-31) 03-02-2024, 10:36 AM
Replies: 22
Views: 973
Posted By johnneilson
Re: Klein Tools

If used correctly the DC indirect amperage can be nice, but reminds me of a job some years ago. A major distribution center, I had just installed an auto scanning manifesting system. It used a PLC...
Forum: Model A (1928-31) 02-29-2024, 08:20 PM
Replies: 16
Views: 1,000
Posted By johnneilson
Re: Lion Speed Head?

I have heard rumors of Lion heads detonating, that is how the one I have was acquired.

Using the proper sparkplug and limiting the advance does wonders.

I doubt seriously the sharp edges could...
Forum: Model A (1928-31) 02-28-2024, 12:22 PM
Replies: 16
Views: 1,000
Posted By johnneilson
Re: Lion Speed Head?

Currently running an original version
Good low end torque falls flat pretty rapidly at higher speed

J
Forum: Model A (1928-31) 02-26-2024, 10:24 AM
Replies: 25
Views: 1,581
Posted By johnneilson
Re: Pre Osha

You are in big trouble if you think Osha is a town in Wisconsin
Forum: Model A (1928-31) 02-24-2024, 03:58 PM
Replies: 12
Views: 694
Posted By johnneilson
Re: Which Headers

Good question
You will get opinions
Logic would suggest a tube header will just offer better performance than a cast manifold type
This is not always true
Besides a 10% performance difference...
Forum: Model A (1928-31) 02-23-2024, 12:35 PM
Replies: 10
Views: 1,013
Posted By johnneilson
Re: Riley ?

So I have one going together currently
It is one of the first run of castings
The machine work is done well everything lines up and fits nicely
We did find a small issue in the water jacket and...
Forum: Model A (1928-31) 02-22-2024, 12:57 PM
Replies: 17
Views: 852
Posted By johnneilson
Re: Best Source For B Motor Parts

So a couple comments here;
Yes inserts are not new there was a Volvo rod bearing from ‘40’s that makes a great fit into modded B rods
Finding them is the challenge

The devil is in the details ...
Forum: Model A (1928-31) 02-21-2024, 11:11 PM
Replies: 17
Views: 852
Posted By johnneilson
Re: Best Source For B Motor Parts

Uhh, blown out by the pressure?
another old wives tale, if done properly is not an issue, I run 100+psi pressure at 7000 rpm, never moved an insert.

Cast in bearing not done properly will suffer...
Forum: Model A (1928-31) 02-21-2024, 10:53 PM
Replies: 17
Views: 852
Posted By johnneilson
Re: Best Source For B Motor Parts

If you have the drilled crank, has the block been prepped for pressure oiling?
part of the process is to open up the oil passages to flow more oil to the crank and block off the front center...
Forum: Model A (1928-31) 02-20-2024, 08:08 PM
Replies: 49
Views: 3,179
Posted By johnneilson
Re: Model A cam ground to "B" profile

Uh, no,

bridge property for sale, cheap!!

J
Forum: Model A (1928-31) 02-20-2024, 08:08 AM
Replies: 49
Views: 3,179
Posted By johnneilson
Re: Model A cam ground to "B" profile

pneumatic springs have been around for some time now, still opened by cams.
variable cam timing has also been around for some time, is in many production cars today.

I read years ago about...
Forum: Model A (1928-31) 02-18-2024, 02:01 PM
Replies: 10
Views: 1,013
Posted By johnneilson
Re: Riley ?

The Riley heads are very good, make good power and pretty stout.
But, there were many castings sold not machined and that left some to be machined with questionable techniques. I have had a couple...
Forum: Model A (1928-31) 02-18-2024, 11:23 AM
Replies: 6
Views: 583
Posted By johnneilson
Re: What cranks are these?

If those are not too far undersize it could be good run for a grinder to do.

If too far under, a good start for mailbox posts...
Forum: Model A (1928-31) 02-15-2024, 01:14 PM
Replies: 40
Views: 2,840
Posted By johnneilson
Re: Tow Insurance

250 or so shades……
Forum: Model A (1928-31) 02-13-2024, 11:31 AM
Replies: 63
Views: 5,137
Posted By johnneilson
Re: List of Reproduction "A" Parts That Don't Work

While I am a SolidWorks aficionado I have been watching the local robotics team use OnShape
This is a online type of program that allows you to use as a subscriber
It does take a good connection...
Forum: Model A (1928-31) 02-12-2024, 11:33 AM
Replies: 49
Views: 3,179
Posted By johnneilson
Re: Model A cam ground to "B" profile

Jeep

Let me ask you a question
Do you salt and pepper a steak at a restaurant before tasting?

Don’t get me wrong asking questions is great, the secret to racing is to ask questions
The...
Forum: Model A (1928-31) 02-11-2024, 10:53 AM
Replies: 22
Views: 1,732
Posted By johnneilson
Re: counter balanced crank

The application is a 1991-2002 Saturn 1.9 L rod bearing.
CB1623P bore 1.9761 -1.9766 0.8 wide journal 1.849 - 1.8505
available in std, .010 and .020 undersize

John
Forum: Model A (1928-31) 02-09-2024, 01:21 PM
Replies: 49
Views: 3,179
Posted By johnneilson
Re: Model A cam ground to "B" profile

Hmmm
So I just had this conversation this week with a friend
He sent me some timing specs that he measured
Of the timing specs only the 050 numbers made any sense
Even after discussing the...
Showing results 1 to 25 of 500

 
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