change timing on a 3.5 vertical B&S?

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Old 07-22-08, 06:11 PM
indypower500's Avatar
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change timing on a 3.5 vertical B&S?

I had a strange call today. He was looking to change the timing to TDC on a 3.5hp vertical B&S engine so he could run it on Hydrogen. Anyone ever heard of doing this?
 
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Old 07-22-08, 11:45 PM
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Never heard of it. You can change timing by removing the flywheel key and setting the flywheel wherever you want on the crankshaft, and then tighten the flywheel nut very tight, but there is no timing index to set it by.
 
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Old 07-23-08, 04:49 AM
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Cheese, I told him the easiest thing is drill & tap a new mounting hole next to the existing hole for the coil.
 
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