all were noisy garbage and became worn however, after Mr. There existed hundreds of Model A forum metal timing gear complaints about (20) years ago. And maybe, what was the estimated original timing gear backlash? Notice also the gear teeth in the indicated diagram below are round rounded on both sides however, this captioned Model A worn aluminum timing gear, after several revolutions, lost it's round on one side of the teeth. and the other metal gear is made in the Far West, among a herd of skinny cattle, in April, by a fat guy using a different English System, while drinking green tea under a celeste fig tree while in khaki pants, can anyone imagine both trying to "exactly" match all of the below critical helical gear dimensions of say b-1, b-2, B-3, j-th tooth, z-1, y, etc., from miles away. If one metal gear is made in the Far East, among a herd of fat camels, in September, by a slim guy using the Metric System while under a live oak tree, and drinking coffee while in blue jeans. Lots of good information above, and no oil noticed on timing gear is important.Īlso, notice the engineering diagram further below indicating the complexity of manufacturing two (2) "exact" matching gears designed to turn at 1,900 rpms for millions and millions of revolutions in a Model A engine. Don't forget the most important advice from Mitch's post above, i.e., to disassemble and clean out everything prior to the next start-up and road trip. we often learn after time that cheap fixes are at times far more expensive and far more time consuming in the long run.ĥ. Life is so short for senior Model A owners. Third: If he advises obtaining his new aluminum gear and his matching crankshaft gear, obtain both and you may be able to ride in the 2021 Christmas Parade in lieu waiting for the 2022 or even the 2025 Christmas Parade after having replaced Babbitt, and/or gone through several different size timing gears.Ĥ. This will be no more expensive than costing only a few postage stamps to be mailed in a special USPS recommended postage box to obtain an "expert" opinion.ģ. however, to possibly be 100% sure, ask if it would help if you mail your chewed-up timing gear to him for further detailed observations as to why he thinks it failed. Second: Your aluminum gear is already toast, so you can ask him to look at your above posted photo of your chewed up gear. nicest Model A gentleman and perhaps the most knowledgeable Model A timing gear expert you'll ever hear on the phone. First: Please call Dan McEachern at (510) 532-8228. and after thinking further, here is my most humble, compassionate opinion:ġ. After re-reading your original Topic, " advice needed".
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