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Author Topic: Opposed Briggs 18hp  (Read 13479 times)

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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #15 on: August 29, 2014, 11:12:10 pm »
Thanks for the heads up on the pushrods. I think I'm going to go ahead and get a billet flywheel, ARC rods and a new cam. Once I see how it's running with those parts I'll think about the other work.
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Offline flatlanderfornow

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Re: Opposed Briggs 18hp
« Reply #16 on: August 30, 2014, 12:21:18 am »
If you use the stock crank and pistons you will have to get the stock
length rods.
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Offline PJG56

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Re: Opposed Briggs 18hp
« Reply #17 on: August 30, 2014, 10:34:45 am »
Assuming your motor is 42ci splash lube,you will need ARC part#6302 rods,
Briggs part#792307 std.pistons(if bore is good) to go with the ARC rods.

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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #18 on: September 01, 2014, 10:17:20 am »
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Offline Jim Knutson

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Re: Opposed Briggs 18hp
« Reply #19 on: September 01, 2014, 10:26:46 am »
Yep, thats it.
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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #20 on: September 01, 2014, 10:41:06 am »
Ok thanks for the help.
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Offline Rooster

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Re: Opposed Briggs 18hp
« Reply #21 on: September 04, 2014, 06:21:00 am »
If you do run it on stock rods, clearance them and flip the top one!
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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #22 on: September 20, 2014, 08:15:51 pm »
I haven't done anything to the engine yet so it is still stock. I've had it running several times to test my mower, today I couldn't get it to start. The starter just can't turn the engine over quick enough. Do I have a bad starter?
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Offline stvn_VA

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Re: Opposed Briggs 18hp
« Reply #23 on: September 20, 2014, 08:18:47 pm »
Maybe weak battery. 


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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #24 on: September 20, 2014, 08:56:55 pm »
I've tried several differnt batteries. I am just hooking jumper cables from a car battery to some fins on the side and the positive terminal on the starter. This method has worked several times I don't know if it's the best way to do it though.
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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #25 on: September 21, 2014, 09:30:22 pm »
Could I have a bad starter.
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Offline snowdude

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Re: Opposed Briggs 18hp
« Reply #26 on: October 21, 2014, 05:13:37 pm »
I have my new billet aluminum flywheel and I just removed my old flywheel. The old flywheel had tons of magnets on the inside and the new one doesn't have any. Is that a issue or do I just bolt on the new flywheel.
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Offline rotten ron

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Re: Opposed Briggs 18hp
« Reply #27 on: October 21, 2014, 06:38:22 pm »
It seems you probably need some heavier cables for the starter and ground
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Offline Jeff McKelroy

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Re: Opposed Briggs 18hp
« Reply #28 on: October 21, 2014, 06:52:28 pm »
Quote from: snowdude on October 21, 2014, 05:13:37 pm
I have my new billet aluminum flywheel and I just removed my old flywheel. The old flywheel had tons of magnets on the inside and the new one doesn't have any. Is that a issue or do I just bolt on the new flywheel.

Magnets on the inside were for charging/lights. Just keep your battery charged, and you'll be fine.
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Offline allntexas

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Re: Opposed Briggs 18hp
« Reply #29 on: October 22, 2014, 05:21:19 pm »
And change the starter while you have the flywheel off.  Just went through having to replace mine because it was dragging.
Dennis
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