Timing gear screw up...

1. What about heating the crank gear and causing damage to the front main Babbitt?

2. There is a reason why AER does not use metallic cam timing gears on their rebuilds ...Does anyone know why?
 
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Lots of cars and trucks used alum gears. But the clearnce was correct so not metal in the oil, also used a new cam gear not a ruff one.
 
FWIW: When purchasing metal timing gears, maybe one way to look at it .... e.g. if one later performs a "Search" on metal timing gears.

Manufacturing gears and precisely meshing metal gear teeth on two (2) separate gears is about as delicate as meshing a set of top false teeth to a set of bottom false teeth.

Nothing worse than not being able to thoroughly chew peanuts with your grandkids at a Circus.

If one wants a set of bottom false teeth and a set of top false teeth; appears for a good fit, it would always be best to go to the same dentist to precisely make both top and bottom to insure proper meshing ....... and ...... if one loses one's set of top false teeth, and wants to replace them, don't go to the dentist without one's bottom false teeth ........ you won't be able to even chew watermelons.

If one wants to do it right the first time and avoid guessing what gears will work with what gears, Mr. Dan McEachern makes the non-ferrous gears, (bronze & aluminum) ......... "and" ........... also the metal crank gear with precise measurements to insure proper meshing of teeth ...... and contrary to the many Model A messages years ago when Model A matching metal gears were not always guaranteed, his are not noisy.

Just hope this helps someone somewhat in the future to do it once.
 
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IF Vermin ever has a "serious" problem,:eek:--- I WON'T put it on here. I'll jist figger it out by my LONESOME!!! (Along with my Dogs':cool: help!) EVERYONE seems to have TOO many varying OPINIONS!
Wish he had THUMBS, I'd teach him to WRENCH stuff!:D
Bill W.
 
FrankWest said:
What I find amazing is that when I had to replace my Time Gear, I asked a million questions on this board about timing gear materials from the original, to super hard original type material to aluminum and bronze too. No mention was ever made by manufacturers and by anyone this board about the danger of using anything other than the original :fiber" material because it could introduce dangerous particles that could wear away engine bearings. The only caution that was made was that it could be noisy.
I never would have chosen a Bronze time gear if I had know of the Dangers!
Click to expand...

For your information, the crap that comes off of a fiber cam gear can destroy an engine just as fast as a metal one.
As far as the "dangers" of metal gears, they are no more "dangerous" than slicing an onion. You can cut your finger off slicing an onion if you are uninformed.
Gears when set properly will last as long as the engine or longer with NO shedding of material.
People that babble on about stuff like that need to go back to school.
As far as helping you any more, forget it.
Vince was right.
 
The archives of the other Model A Forum years ago were "loaded" with warnings about do "not" buy "noisy" metal timing gears ...... that is ...... until one guy posted that he had just bought "quiet" metal gears from Mr. McEachern.

He was next brutally & verbally attacked by the then Forum Cardinals and writers of strict Model A Canon Law ........ but ........... rather than face Excommunication and burned at the stake ............. this young man stood his ground and was later found not to be a Heretic.

There was no doubt considerable Model A Forum background moaning and also ........... gnashing of teeth ........... but ....... none with his new aluminum Model A matching timing gear quiet teeth.
 
Check the gear lash. Should be .003-.004. May be too late for this set, but do it when you reassemble it.
 
Thanks to everyone for your help and advice. I do wish I'd replaced the crank gear when I'd replaced the timing gear. I think that was a mistake on my part and definitely not the fault of the material that was used for the timing gear or the quality of the part. I was surprised that the crank gear had so much surface rust on it, but I guess I was fooling myself by thinking it wouldn't cause problems. I'm usually pretty "fussy" about replacing old and worn parts, but in this case I'm afraid I took the "Mickey Mouse" approach...:(

Thanks again and have a great New Year!

Len
 
Hi Len,

You are a wonderful and great teacher. Thanks.

We "all" still makes mistakes ..... and some have too much pride to share such "real" learning experiences.

It appears much easier to remember what "not" to do ..... rather than what "to" do ........ for example ..... in formal training on how to use C-4, dynamite, DET Chord, and nitroglycerin blasting caps, especially during a thunderstorm ..... what "not" to do is most important. LOL
 
When engine set unused for long periods of time (years), it seems the crankshaft timing gear and distributor shaft are the first parts to rust. Many times the rest of the engine will stay rust free.
 
Len'
I appreciate your hindsight and willingness to admit it.
Let you who have never faced a "woulda, coulda, shoulda" moment cast the first lug nut.
 
Frank how old is the engine? To clean it properly would require a complete disassembly and solvent cleaning. Your engine looks like it has some miles on it? I would just replace the timing gear with a good quality fiber gear. I would also pull your oil pan and clean it out good with diesel fuel. Don't try pulling the crank gear. I would run the car and check your gear to see if in fact the crank gear is chewing up your timing gear. If it's chewing the gear then try pulling the crank gear in the car knowing you may end up removing the engine and crankshaft to press it off.
 
My experience: Minerva had a Bronze cam gear & a new crank gear, it made "some" noise that gradually went away, in the first 3,000 Miles.
In my years at Volvo, the INLINE 6 Cylinder gears were NOTORIOUS for failing. The Factory sent us Aluminum gears & they were a "little" noisy. A few times, they even sent us some STEEL cam gears, my GOD, they were NOISY, beyond belief! We had to change them back to Aluminum gears, except for one man that liked his, because it sounded like a DIESEL!!
Bill W.
 
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