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Re: Roosa Master Injector pump with solenoid


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Posted by jdemaris on August 14, 2010 at 18:47:56 from (72.171.0.140):

In Reply to: Re: Roosa Master Injector pump with solenoid posted by acny on August 14, 2010 at 05:48:37:

As I already stated, the solenoids rarely short out. That metal threaded 10/32 stud that's in your photo where the wire-lead hooks to has a rubber insulator over it - where it passes through that top cover on the pump. The isulator goes bad over time and can cause a short to ground. You cannot see the insulator until you pull that cover off (via three small bolts).

In regard to eliminating it? Yes, if you take out the solenoid completely, it will run fine without it. You just won't have any sure way of shutting the engine off. You'll have to stall it, or turn the fuel off, or lower the idle so low it dies when you detrottle.


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