The Ford Barn

Mamel · 10-18-2018, 12:01 AM

Wondering why the model A engine sits in an angle in the chassis, is this important?

Chris Haynes · 10-18-2018, 12:33 AM

Mine sits vertical.

Richard in Anaheim CA · 10-18-2018, 12:46 AM

I doubt that your engine sits vertical.

All engines sit at an angle to help align the drive line to the rear end. I think it is 3 degrees.

Look aat your intake manifold. It too is machined at that 3 degrees so the carburetor sits level.

dave in australia · 10-18-2018, 01:29 AM

They sit vertical, that is viewed from the front, straight up and down, but they sit tail down from horizontal.

Lawrie · 10-18-2018, 01:32 AM

Richard, unless you are in Australia,then its upside down.
Good to here from you.
Lawrie in australia

Mamel · 10-18-2018, 02:06 AM

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Do I need to keep the 3 degrees?
The reason that I ask this because I have a model T chassis that I has been lying around and I have some spare model A parts.
I am building a brass era speedster with model A running gear.
So I will be making engine supports for the model A engine.

Dodge · 10-18-2018, 02:49 AM

Yes, keep the 3 degrees.

Bob Bidonde · 10-18-2018, 06:42 AM

The engine's angle coincides withe angle of the drive shaft and differential. The idea is to have a static straight line from the pinion gear to the crankshaft.

Bob C · 10-18-2018, 11:27 AM

Also it you change the angle the carburetor will not sit level.

Bob

Phil Brown · 10-18-2018, 02:49 PM

I think that you also need the angle to help fill the rear of the valve chamber to supply the rear main with oil. Sitting level just the front part of the chamber will fill then start spilling over on the timing gears
Might also help with venting of the cooling system, eliminating trapped air that would become steam pockets

Bob Bidonde · 10-22-2018, 12:54 PM

The valve chamber dams were designed to accommodate the 3 degree driveline angle.

Chris Haynes · 10-22-2018, 01:02 PM

Quote:

Originally Posted by Richard in Anaheim CA

I doubt that your engine sits vertical.

All engines sit at an angle to help align the drive line to the rear end. I think it is 3 degrees.

Look aat your intake manifold. It too is machined at that 3 degrees so the carburetor sits level.

I was thinking of looking at it from the front, not the side. Of course the engine is higher in front.

100IH · 10-23-2018, 05:23 PM

Universal joints need a slight angle for a normal stance so the needle bearings don't fail from not spreading the load and the lubricant.

10-18-2018, 12:01 AM	#1
Mamel Member Join Date: Oct 2014 Posts: 52	Angle engine Wondering why the model A engine sits in an angle in the chassis, is this important?

10-18-2018, 12:33 AM	#2
Chris Haynes Senior Member Join Date: May 2010 Location: Camarillo, CA and Pine Grove, CA Posts: 2,832	Re: Angle engine Mine sits vertical. __________________ 1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go?

10-18-2018, 12:46 AM	#3
Richard in Anaheim CA Senior Member Join Date: May 2010 Location: Anaheim California Posts: 551	Re: Angle engine I doubt that your engine sits vertical. All engines sit at an angle to help align the drive line to the rear end. I think it is 3 degrees. Look aat your intake manifold. It too is machined at that 3 degrees so the carburetor sits level.

10-18-2018, 01:29 AM	#4
dave in australia Senior Member Join Date: May 2010 Location: Victoria, Australia Posts: 1,176	Re: Angle engine They sit vertical, that is viewed from the front, straight up and down, but they sit tail down from horizontal.

10-18-2018, 01:32 AM	#5
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,215	Re: Angle engine Richard, unless you are in Australia,then its upside down. Good to here from you. Lawrie in australia

10-18-2018, 02:06 AM	#6
Mamel Member Join Date: Oct 2014 Posts: 52	Re: Angle engine Sponsored Links (Register now to hide all advertisements) Do I need to keep the 3 degrees? The reason that I ask this because I have a model T chassis that I has been lying around and I have some spare model A parts. I am building a brass era speedster with model A running gear. So I will be making engine supports for the model A engine.

10-18-2018, 02:49 AM	#7
Dodge Senior Member Join Date: Nov 2011 Location: Sonoma, CA. Posts: 1,495	Re: Angle engine Yes, keep the 3 degrees.

10-18-2018, 06:42 AM	#8
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 3,463	Re: Angle engine The engine's angle coincides withe angle of the drive shaft and differential. The idea is to have a static straight line from the pinion gear to the crankshaft. __________________ Bob Bidonde

10-18-2018, 11:27 AM	#9
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,747	Re: Angle engine Also it you change the angle the carburetor will not sit level. Bob

10-18-2018, 02:49 PM	#10
Phil Brown Senior Member Join Date: May 2010 Location: Santee Calif. Posts: 508	Re: Angle engine I think that you also need the angle to help fill the rear of the valve chamber to supply the rear main with oil. Sitting level just the front part of the chamber will fill then start spilling over on the timing gears Might also help with venting of the cooling system, eliminating trapped air that would become steam pockets

10-22-2018, 12:54 PM	#11
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 3,463	Re: Angle engine The valve chamber dams were designed to accommodate the 3 degree driveline angle. __________________ Bob Bidonde

10-23-2018, 05:23 PM	#13
100IH Senior Member Join Date: Dec 2011 Location: SW Idaho Posts: 970	Re: Angle engine Universal joints need a slight angle for a normal stance so the needle bearings don't fail from not spreading the load and the lubricant.