Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 10-05-2015, 03:09 PM   #1
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default 5 main, chev, crankModel A engine

I know this is not for ever one, so don't look if you do not want to see a chev crank in a, A engine.

After a couple of years I'm back working on this engine. Today I started to make rods for this engine out of 7075 Alum. I made a wooden one first to make sure my math was right. If there is any interest I can post some pictures of making the rods along the way. This engine will be for my home built over head cylinder head.
Attached Images
File Type: jpg 5 main block and Ryan 005.jpg (55.6 KB, 1169 views)
George Miller is offline   Reply With Quote
Old 10-05-2015, 03:21 PM   #2
Juggler
Senior Member
 
Juggler's Avatar
 
Join Date: Aug 2010
Location: Phoenix AZ/Bath UK
Posts: 481
Default Re: 5 main, chev, crankModel A engine

Interest here

Pics please Mr Miller
Juggler is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 10-05-2015, 03:24 PM   #3
Kohnke Rebabbitting
Senior Member
 
Join Date: May 2010
Location: 60615,330th Ave.,Clare, Iowa, 50524
Posts: 1,457
Default Re: 5 main, chev, crankModel A engine

Quote:
Originally Posted by George Miller View Post
I know this is not for ever one, so don't look if you do not want to see a chev crank in a, A engine.

After a couple of years I'm back working on this engine. Today I started to make rods for this engine out of 7075 Alum. I made a wooden one first to make sure my math was right. If there is any interest I can post some pictures of making the rods along the way. This engine will be for my home built over head cylinder head.
Oh, Ya, George! PICTURES.

Herm.
Kohnke Rebabbitting is offline   Reply With Quote
Old 10-05-2015, 03:29 PM   #4
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default Re: 5 main, chev, crankModel A engine

Ok I will take them after each operation. Also I will be using 283 Chev pistons.
George Miller is offline   Reply With Quote
Old 10-05-2015, 03:30 PM   #5
super flat
Senior Member
 
super flat's Avatar
 
Join Date: Jan 2011
Location: west bend wi
Posts: 314
Default Re: 5 main, chev, crankModel A engine

George, Whittle away and lots of pictures please! Gary
__________________
I am usually relatively happy------Gary
super flat is offline   Reply With Quote
Old 10-05-2015, 04:08 PM   #6
Cockshutt Kid
Member
 
Join Date: May 2013
Location: Ontario, Canada
Posts: 81
Default Re: 5 main, chev, crankModel A engine

Sponsored Links (Register now to hide all advertisements)
Would love to see more about the crank installation also. Is that a timing chain that I see? That looks real interesting.
Cockshutt Kid is offline   Reply With Quote
Old 10-05-2015, 04:09 PM   #7
Vicky
Senior Member
 
Vicky's Avatar
 
Join Date: May 2010
Location: Colorado
Posts: 235
Default Re: 5 main, chev, crankModel A engine

I'm watching, interesting
Vicky is offline   Reply With Quote
Old 10-05-2015, 04:11 PM   #8
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default Re: 5 main, chev, crankModel A engine

Day one. The picture of putting in wrist pin holes. Also the wooden rod that I made to make sure my math was right. Also to make sure it cleared every thing in side the engine. The alum rods will be a little different in shape.
George Miller is offline   Reply With Quote
Old 10-05-2015, 04:16 PM   #9
flatford39
Senior Member
 
Join Date: May 2010
Location: NE Illinois
Posts: 499
Default Re: 5 main, chev, crankModel A engine

Please keep the pics coming. Are you building a racing motor for the salt flats???
flatford39 is offline   Reply With Quote
Old 10-05-2015, 04:25 PM   #10
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default Re: 5 main, chev, crankModel A engine

Quote:
Originally Posted by flatford39 View Post
Please keep the pics coming. Are you building a racing motor for the salt flats???
No Just wanted to do it. I wanted to use it with the cylinder head that I made a few years back.
George Miller is offline   Reply With Quote
Old 10-05-2015, 04:27 PM   #11
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default Re: 5 main, chev, crankModel A engine

Quote:
Originally Posted by Cockshutt Kid View Post
Would love to see more about the crank installation also. Is that a timing chain that I see? That looks real interesting.
Yes. I will see if I have any pictures of when the crank was put in.
George Miller is offline   Reply With Quote
Old 10-05-2015, 04:58 PM   #12
JohnTee
Junior Member
 
Join Date: May 2010
Location: Clinton, Tennessee
Posts: 11
Default Re: 5 main, chev, crankModel A engine

Thanks for this post Mr. Miller. How about some specs on the crankshaft. Been trying for some time to find one like this. Never thought to look at chev as the source.
JohnTee is offline   Reply With Quote
Old 10-05-2015, 05:21 PM   #13
Rex_A_Lott
Senior Member
 
Join Date: Jun 2011
Location: Upstate South Carolina
Posts: 794
Default Re: 5 main, chev, crankModel A engine

NIce! Never seen anybody whittle a rod out of barstock. Good Luck
Rex_A_Lott is offline   Reply With Quote
Old 10-05-2015, 05:41 PM   #14
Russ/40
Senior Member
 
Russ/40's Avatar
 
Join Date: May 2010
Location: Santee, California
Posts: 3,505
Default Re: 5 main, chev, crankModel A engine

Im most curious how you handled the cam lobe timing.
Russ/40 is offline   Reply With Quote
Old 10-05-2015, 06:04 PM   #15
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default Re: 5 main, chev, crankModel A engine

Quote:
Originally Posted by Russ/40 View Post
Im most curious how you handled the cam lobe timing.
Used the chev cam that went with the crank.
George Miller is offline   Reply With Quote
Old 10-05-2015, 06:14 PM   #16
Miles in MN
Member
 
Miles in MN's Avatar
 
Join Date: May 2010
Location: St. Paul, MN
Posts: 45
Default Re: 5 main, chev, crankModel A engine

Quote:
Originally Posted by George Miller View Post
Used the chev cam that went with the crank.
What is the source of the Chev crank and cam? Are they early or are they from the 153 cid overhead? Didn't Chevrolet transition from four to six cylinder in 1927 or 28? Very interesting project!!
Miles in MN is offline   Reply With Quote
Old 10-05-2015, 06:51 PM   #17
Ron W
Senior Member
 
Ron W's Avatar
 
Join Date: Jan 2011
Location: Central Me.
Posts: 260
Default Re: 5 main, chev, crankModel A engine

It looks like the center lines of #2 and #3 journals may be offset from the bores? I'm curious how you will handle that. Ron W
Ron W is offline   Reply With Quote
Old 10-05-2015, 06:58 PM   #18
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,975
Default Re: 5 main, chev, crankModel A engine

Quote:
Originally Posted by Miles in MN View Post
What is the source of the Chev crank and cam? Are they early or are they from the 153 cid overhead? Didn't Chevrolet transition from four to six cylinder in 1927 or 28? Very interesting project!!
They went to the 6 cylinder in 29. The crank is from a V8, so you can not use the A cam, because the A is a flat crank. The chev is 90 degree crank. The valve timing would be wrong.

The 153 crank would be great, but it is to short for the A block. The A block is wide between 2,3 cylinders because of the dist. going through the head and into the block.
George Miller is offline   Reply With Quote
Old 10-05-2015, 07:30 PM   #19
AL in NY
Senior Member
 
AL in NY's Avatar
 
Join Date: May 2010
Location: Southern Upstate New York
Posts: 1,149
Default Re: 5 main, chev, crankModel A engine

George, I don't think you can get a "smooth" firing order using the V8 90 degree crank. Depending on how you set up the valve timing, a 720 degree firing cycle would go 180-90-180-270 or 180-270-180-90. You can't get 180 degrees of crankshaft rotation between each of the 4 cylinders in the firing cycle. Seems to me the engine would run ruff.
__________________
AL in NY
AL in NY is offline   Reply With Quote
Old 10-05-2015, 07:46 PM   #20
Tom Wesenberg
Senior Member
 
Tom Wesenberg's Avatar
 
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
Default Re: 5 main, chev, crankModel A engine

Yep, as Al said..........I wonder if it will sound like a pair of John Deere tractors running together?

It will be interesting..........as well as a lot of work. What is the stroke?
Tom Wesenberg is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 04:07 AM.