Wen, who sells a harmonic balancer for the A?
Balancing an engine at home (Newbie)
- Thread starter Straw530
- Start date
Wen, who sells a harmonic balancer for the A?
I went down to the local 'emporium' and bought a gram scale..balanced the rod piston pin and rings as assemblies,I know it isn't the proper way to balance but I did get them within a gram.they did have a 10g or so variance so it helped.The biggest bang for your buck balancing is getting your flywheel,pressure plate and clutch done as an assembly.
In line four cylinders have an inherent shudder,accentuated in the A with siamese intake ports ,mine runs pretty smooth,thouigh I dont know if the fooling I did with the scale was the difference..probably not
Rail, what did you to balance everything. Grind, file, drill?
Dave in MN
Well-known member
Check with Murray Horne.
I have one of his front pulley dampeners.
Murray Horn <horn@xtra.co.nz>
Good Day!
denniskliesen
Well-known member
Does your dampener have the spiral cut groove and if so what are you using for a front seal? I'm done with rope seals. Never had one that didn't leak.
Dave in MN
Well-known member
Yes, It has the spiral grooves and used with rope seal. 11,600 miles and no leak...yet.
Railcarmover
BANNED
I smoothed the casting ridge on the side of the rod. It wast a scientific job,weight variance an the piston has a greater effect on vibration than a weight variance at the big end of the rod,its further from the axis (center of crankshaft)
I figured anything would help,the imbalance on a low rpm engine isnt that big of an issue,as rpm rises (like 4 or 5k) it becomes huge. If memory serves I pulled out a 10g variance.
Rusty Karz
Member
Who makes a harmonic balancer pulley for a Model A? Sounds like a good solution to me.
Terry NJ
Well-known member
Chances are that that the flywheel housing will be radial cracked around the bolt holes, almost every one is..
I don't recall whether or not that I read that you replaced that 4 inch tube that drains oil from they rear main. The engine can leak quite a bit of oil if it's missing (Don't ask me how I know) Also, there is a tiny tack weld that prevents it from turning itself out.
If you have access to a large lathe, turn some weight off that monster flywheel (63 lbs) There are drawings of where the extra stock should be removed. Then have the flywheel professionally balanced. (cost, about $60-80) This will reduce the rotating mass.
Check your compression! Ideally each cylinder should be within a few lbs of the others.
Terry
I don't recall whether or not that I read that you replaced that 4 inch tube that drains oil from they rear main. The engine can leak quite a bit of oil if it's missing (Don't ask me how I know) Also, there is a tiny tack weld that prevents it from turning itself out.
If you have access to a large lathe, turn some weight off that monster flywheel (63 lbs) There are drawings of where the extra stock should be removed. Then have the flywheel professionally balanced. (cost, about $60-80) This will reduce the rotating mass.
Check your compression! Ideally each cylinder should be within a few lbs of the others.
Terry