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Use 1/4" hole on starter for engine ground?

 
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rparigoris



Joined: 24 Nov 2009
Posts: 780
PostPosted: Wed Aug 26, 2020 9:45 am    Post subject: Use 1/4" hole on starter for engine ground? Reply with quote
Hi Group I have a Rotax 914 with heavy duty starter. There is a casting at the rear of the starter with an untapped 1/4" hole perhaps 1/2" thick. Is there any reason why I couldn't use this as my only engine ground? I can't use the engine lift point as ground because the wire will interfere with cooling air baffle air flow down and around the B&C SD20S alternator. There is a tapped 6mm hole on the 2 aft cylinders but the starter is closer to the firewall ground pass through. Ron P.

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user9253



Joined: 28 Mar 2008
Posts: 1908
Location: Riley TWP Michigan
PostPosted: Wed Aug 26, 2020 2:11 pm    Post subject: Re: Use 1/4" hole on starter for engine ground? Reply with quote
Actually that ground lug on the starter is the ideal location for the engine ground cable.
Current will not have to pass through the engine block to crank the engine.

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