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03-11-2018, 02:19 PM | #1 |
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How to check dist/oil pump/ timing gear backlash?
Question for the old pros on here. How do you properly check gear backlash? Putting my motor back together and there are several checks for backlash required. Hope to see recommendations for each check, thanks in advance, Greg.
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03-11-2018, 03:01 PM | #2 |
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Re: How to check dist/oil pump/ timing gear backlash?
Timing gear is on the timing gear and crank gear. Ford specified a small backlash, however my own engine with 35,000 miles has none, and there are no problems.
The distributor lash is easily checked by moving the tightened distributor rotor back and forth. That one doesn’t matter too much because the lash is removed when setting the timing and the engine turning always keeps it at zero. If the cam/distributor drive is out you can look at the gear wear. |
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03-11-2018, 03:20 PM | #3 |
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Re: How to check dist/oil pump/ timing gear backlash?
Thanks Chuck, but that does not help at all! LOL! I'm asking for actual method to measure the backlash. I know what "seat of the pants" feels like, just curious as to exacting methods.
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03-11-2018, 03:44 PM | #4 |
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Re: How to check dist/oil pump/ timing gear backlash?
Are you looking for something more than standard techniques for measuring gear backlash? There should be many examples online. Is one of the Model A gear measurements giving you a problem?
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03-11-2018, 04:16 PM | #5 |
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Re: How to check dist/oil pump/ timing gear backlash?
No, no problem, just have not seen this addressed here with searching, etc..and always find it interesting what the old school guys did.
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03-11-2018, 04:31 PM | #6 |
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Re: How to check dist/oil pump/ timing gear backlash?
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I'm part of the only ever generation with an analogue childhood and a digital adulthood. Last edited by Synchro909; 03-13-2018 at 09:36 PM. |
03-11-2018, 08:44 PM | #7 | |
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Re: How to check dist/oil pump/ timing gear backlash?
Quote:
I LOVE your sign off line, at WHAT Age does that start??? I hope it's awhile after 82. Just had ALL my Lab Tests, Dr, sez I'll live to 121 1/2--LOL Bill Young
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03-13-2018, 08:54 PM | #8 |
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Re: How to check dist/oil pump/ timing gear backlash?
A dial indicator is easy and fast for checking tmg gear lash if the valve springs are out. Otherwise, use a feeler gauge
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03-13-2018, 09:37 PM | #9 |
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Re: How to check dist/oil pump/ timing gear backlash?
Started last week for me!!
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03-13-2018, 10:22 PM | #10 |
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Re: How to check dist/oil pump/ timing gear backlash?
distributor/oil pump drive is a visual inspection,oil pump drive tang should be flat with no edge rolling.
the drive cam gear should not have 'hourglass' teeth .004 on the cam timing gear can be done with a flexible magnetic base and a dial indicator but its a pain.I do it by feel,a 'light click'. |
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