10-18-2018, 12:01 AM | #1 |
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Angle engine
Wondering why the model A engine sits in an angle in the chassis, is this important?
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10-18-2018, 12:33 AM | #2 |
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Re: Angle engine
Mine sits vertical.
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10-18-2018, 12:46 AM | #3 |
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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 |
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Re: Angle engine
They sit vertical, that is viewed from the front, straight up and down, but they sit tail down from horizontal.
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10-18-2018, 01:32 AM | #5 |
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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 |
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Re: Angle engine
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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 |
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Re: Angle engine
Yes, keep the 3 degrees.
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10-18-2018, 06:42 AM | #8 |
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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.
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10-18-2018, 11:27 AM | #9 |
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Re: Angle engine
Also it you change the angle the carburetor will not sit level.
Bob |
10-18-2018, 02:49 PM | #10 |
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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 |
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Re: Angle engine
The valve chamber dams were designed to accommodate the 3 degree driveline angle.
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10-22-2018, 01:02 PM | #12 |
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Re: Angle engine
I was thinking of looking at it from the front, not the side. Of course the engine is higher in front.
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
10-23-2018, 05:23 PM | #13 |
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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.
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