VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1912-1928 1928 4cyl crank gear

Does this crank gear have an oil slinger that sit's on the front of this gear?, or does it mount behind the gear??
I have looked in the books but cannot find this.
Can anyone shed light on this???


Keeping vintage Chevy alive.

The front crankshaft slinger mounts between the gear and timing cover. It slings the oil away from the opening in the cover so it won't get out of the engine.

Thank's Chipper
That fixed the problem.
When I bought the car, the motor was all apart in boxe's, so I decieded to clean it up and put it back together.
Is there a certain way the flywheel is to be aligned with the crankshaft??? I have read that you should mark the crank and flywheel for reassembly, But the two parts were taken apart before I got them and not marked.
Is there anything I have to watch for when I bolt the flywheel to the crankshaft ? any factory mark's? or a certain position it should be in?


Keeping vintage Chevy alive.

Yes,
The flywheel should only go on in one position in order to line up the timing mark. Because there are six bolts and no locating pin it is possible to put the flywheel on in six different positions. Only one will result in the timing mark (UIC stamped on the edge of flywheel) aligning with the window in the clutch housing. The proper procedure is in the '28 Service News. It can be done without the Service News by rotating the number one piston to TDC (Top Dead Center)and firing position (both valves closed) then aligning the timing marks in the window. It is possible to get it 180 deg off if number 1 piston (furthest forward) is not in the firing position. Be careful as last time I put on a '28 flywheel I got it wrong.

You can't get the flywheel on wrong IF #1 Piston is at TDC, and you put the timing mark on the flywheel in the timing window. However,you can get the valves out of time if you don't line up the timing marks as per the service and repair manual instructions. This is because the timing gear turns only 1/2 of a revolution for each revolution of the crankshaft and the flywheel. Therefore you CAN get the timing gear 180 degrees off, and that will mean that for only one rev of the timing gear the flywheel will turn 2 revs. and one of the times that the flywheel timing mark is in the window it is 180 degrees out of time.

Thank's Chipper
Did any engine damage happen when you installed the flywheel in the wrong position?
I will try the method you mentioned, look's like I have to put the head back together first so I can get things lined up.


Keeping vintage Chevy alive.

Thank's MrMack
When I get the head back together I will make sure that the valves and piston are in the right positions (TDC) when I bolt up the flywheel and the timeing mark is in the window.
As long as I don't crush my fingers with the flywheel putting it in.
Thank's again.



Keeping vintage Chevy alive.

No damage except to my pride. All that happens is you can't line up the timing mark if it is not in the window when it should be.

I always like to put the flywheel on before I put the head on. but that is just me. Most of the time I put the engine head on before I install the engine in the car, but not always. If you are using one of those engine stands that the flywheel has to be off to mount the engine it is the thing to do (put the head on before mounting the flywheel).
You don't need the head mounted to time the valves. I always mount the camshaft right after installing the crankshaft. You better get the camshaft correct before you put on the timing gear cover and dampner, crank pully.

I fully agree on getting the camshaft timing right. Just ask Brucie. You can still double check the cam shaft by installing the lifters, making sure that both lifters on #1 are at the bottom and #4 are not and #1 piston is at the top. That is still TDC or UIC and the flywheel can be mounted correctly.