Heymow - Lawnmower Racing Forum

Engine Help => Briggs Flathead => Topic started by: 86turbodsl on May 24, 2019, 07:44:01 pm

Title: Specs on opposed rods
Post by: 86turbodsl on May 24, 2019, 07:44:01 pm
Does anyone have specs on the pressure lube holes / rod dimensions?  I need to figure out what the 42" pressure lube rods have for oiling provisions.

Thanks in advance.
Title: Re: Specs on opposed rods
Post by: birdman_express on May 25, 2019, 10:31:55 pm
Are you talking about stock rods, or ARC rods?


https://www.arcracing.com/6303-arc-billet-rod-briggs-boxer-mod-42-p-4-96x-801/
Title: Re: Specs on opposed rods
Post by: 86turbodsl on May 27, 2019, 10:36:51 pm
Stock rods.  I'm not racing, i'm just trying to assemble a pressure lube motor that somebody before me completely screwed up with non-pressure lube rods.
Title: Re: Specs on opposed rods
Post by: birdman_express on May 28, 2019, 12:55:52 am
If you are just assembling a stock motor, then buy the new rods and install them.
Title: Re: Specs on opposed rods
Post by: 86turbodsl on May 28, 2019, 01:03:54 pm
i can't find the proper rod part number.  I am going from a 40cu engine to a 42 cu engine.  The original pressure lubed 12.5hp engine was underpowered.

And don't tell me to just go to a small engine repair shop.  They are all useless around here.
Title: Re: Specs on opposed rods
Post by: cycloneracer on May 28, 2019, 11:37:42 pm
Don’t waste your money on that crappy engine.    Go buy a bigger v twin if you want more power. 

You can buy a Chinese knock off of a Kohler v twin for less than the Stock rods will cost.  And it will bolt right up.
Title: Re: Specs on opposed rods
Post by: 86turbodsl on May 29, 2019, 07:13:00 am
I would, but i'm kinda stuck with it.  The engine is directly under the operator.  It's one of the old zero turn mowers like a Grazer/Ingersoll/White/Deitz.  I've got a MAX engine height of around 19-20" and all the Vtwin horizontals are taller than that.  I ALSO have to have pto on both sides to drive the deck and the hydro motors.

About the only thing i've found that MIGHT work in it's place is a Kubota Z482 diesel.
Title: Re: Specs on opposed rods
Post by: Negrey on June 05, 2019, 03:04:16 am
You can buy a Chinese knock off of a Kohler v twin for less than the Stock rods will cost.  And it will bolt right up.

Do you have a link to where they're available? Thanks