Wiring diagram help.

[BrianSki]

I am wanting to do an engine swap and checking to see if there are any wiring diagrams before I start.
The original engine is a Briggs...

 

[BrianSki]

The "new" donor engine is... 2 pictures because of the glare. Engines seem to be close... I did not get a close look yet. Wanting to get some info first.

 

[Auto Doc's]

I would say they are close.

One is a '97 and the other is a '99 according to the first two digits in the code information. Both are 16HP V-twin design according to my quick online search. and will bolt up because they have an industry standard bolt pattern. The difference come with the wiring and how the two compare. Also, the crank length and diameter may be different.

Do both machines these engines come from have an electric PTO option?

 

[StarTech]

Well Briggs Power Portal differs.

The 35 is coming as a 18hp and the 30 as a 16hp.

and 30 has considerable longer PTO end at 3.140 vs the 35 at 2.362. The 35 has 809808 crankshaft and the 30 has a 692159 crankshaft.

With both having 3 different stators available.

What is worst is Briggs does not show an IPL for 303777-1142-A1 but does for a 303777-1142-E1.

 

[BrianSki]

and 30 has considerable longer PTO end at 3.140 vs the 35 at 2.362. The 35 has 809808 crankshaft and the 30 has a 692159 crankshaft.

I was afraid of crank being different size... Will see what happens.

The mower has a 18hp and a 16hp sticker... Might have been cover swap.

The 35 is on a John Deere mower... and has a oil cooler. I was told the 30 was off a Zero turn and doesn't have an oil cooler. That is all I know.