Dave's 1650 Project - Page 48

CC1650Dave · #**471** 10-26-2011, 12:19 AM

Step 20: Install side air baffles and cylinder head baffle

(AKA engine tins) Pretty simple stuff, but you'll probably want to have taken a lot of good pictures on disassembly to assure that you know how it all goes back together.

Step 21: Install dipstick:

Step 22: Install fuel tank: We skip over, since this was written for Kohlers with the tank mounted to the engine.

Step 23: Install electric starter:

Step 24: Install retractable starter and Step 25: Install fuel pump are both skipped. My K341 has neither.

CC1650Dave · #**472** 10-26-2011, 12:40 AM

Step 26: Install external governor components and throttle controls

The governor arm goes on the shaft and is left loose for the time being:

The spring on my K341 was originally located on the third hole up from the bottom. I recall reading somewhere that it appears to be the same for most all Kohlers, but this is one of those things you're going to want to get pictures of before disassembly, so you'll know how it goes together correctly.

Then the controls are bolted up to the blower housing:

And the spring connects in the second hole from the top on my engine (again, good stuff to get pictures of before disassembly to assure your correct holes.)

(This pic was taken a little late, after the carb was already on - of course, we haven't put the carb on yet. On to the next step...)

CC1650Dave · #**473** 10-26-2011, 12:54 AM

Step 27: Install carburetor and throttle linkage

This is where the service manual makes no mention of the plastic spacer between the carb and the intake. I guess it must've been an IH specification.

My K341 had the spacer. And, the rebuild kit only included one carb gasket. Because of this spacer, you're going to need two of them. Another order, delay, and trip to the dealer...

I think I already discussed earlier in the thread how I cleaned the gasket material off this thing. In hindsight, I think this would have been a good place to just go out and buy some gasket material remover.

But here it is anyway: I used a razor blade ever-so-gently, then WD-40 with a scrubbing pad, and eventually used a scrubbing pad on my mouse sander (with WD-40)

With a gasket on either side of that spacer, you can mount up your carb and connect the linkage, which I apparently don't have any pictures of yet. Will try to add that later.

And that's it for tonight. We're on the home stretch!

Methos · #**474** 10-26-2011, 01:34 AM

Dave your making some great progress! Awesome pics as always!

Matt G. · #**475** 10-26-2011, 06:48 AM

You're about to discover that the choke linkage should be attached to the carb and bellcrank before bolting the carb onto the engine...

ACecil · #**476** 10-26-2011, 11:19 AM

Great update and pics, Dave!

CC1650Dave · #**477** 10-26-2011, 12:20 PM

Quote:

Originally Posted by Matt G.

You're about to discover that the choke linkage should be attached to the carb and bellcrank before bolting the carb onto the engine...

I do have it together, and you're right Matt. I think I was able to take one of the other parts off to get it together, but I can't remember for sure. That's what I get for doing these updates too long after I actually did the work, I forget some of the details.

Sugarmaker · #**478** 10-26-2011, 08:54 PM

Dave,
Do I really need two carb gaskets? One on each side of the thick spacer? That does make sense. But why would they not put two thin gaskets in the gasket kit?
Regards,
Chris

CC1650Dave · #**479** 10-27-2011, 03:23 AM

Quote:

Originally Posted by Sugarmaker

Dave,
Do I really need two carb gaskets? One on each side of the thick spacer? That does make sense. But why would they not put two thin gaskets in the gasket kit?

I think it's because Kohler has their "general" specs for your engine, while IH specified variations on the standard Kohler engine.

Kohler didn't design the engine with a carb spacer, IH spec'd it in.

logically, it would need a gasket on either side. It's not like that piece of plastic could be a gasket on either side....

Regarding your rebuild kit, I'd guess it included the gaskets needed for a standard Kohler engine, not one built to IH specs (with the spacer.)

CC1650Dave · #**480** 10-29-2011, 08:17 PM

She's alive...ALIVE!!!

The Big K341 took its first breaths as a newly rebuilt motor today!

As you may recall, I have mounted it up in the 1450 Sub-project tractor so I can actually drive a Cub while I'm putting the 1650 back together.

I don't have any pics or video yet (the camera was out of battery) so I'll try and get some tomorrow.

I'm having some difficulty getting the carb dialed in.

I started with the Kohler recommended beginning points for the high-speed needle (3-1/2 turns out) and low idle needle (2-1/2 turns out.)

The tractor is difficult to start. It needs to crank quite a bit, and it seems to start best at mid-throttle (at least when it's warm with no choke.)

I double-checked my timing via the static method, and I'm DEAD ON the "S" when the points begin to open.

Then I follow the instructions to find the sweet spot on the high speed needle, and I can turn the darned thing in or out a 1-1/2 turns and even more before I notice any change in engine speed at WOT. What's up with that? It's supposed to find it's range within 1/2 of a turn, and I can't seem to find a difference over a much larger range.

It got to the point that I gave up and went back to the standard settings because I wasn't sure how many more threads I had to back the high idle screw out....

I'm going to let it rest for the night, do some more reading (and hopefully get some good advice here) and then go back at it tomorrow.

But...She's Alive!