OMC part #, anybody know which year?

[SS Minnow]

I have a 1990 Evinrude 140 that needs new reeds. Took it apart yesterday and I am pretty sure it is not the stock intake manifold. The part number on the manifold is 332243-3 and it is the round bore where I was sure I was supposed to have the diamond shaped bores.

And the heads are part number 333686-1 and -2
Anybody know if those are 1990?
Will get back to this later today, going to see what jets and bleeds are in the carbs.

[Motv18]

My info has 0332243 as old part replaced by 0397497 both 1990 all 140 like years.

Their 0+ Number

head doesnt match any I have, but I don’t have superseeds on them. But there is a low compression kit that also didn’t match.

[SS Minnow]

Thanks for the reply.

I was surprised to see that manifold on there. Kind of nervous too honestly, as it has the stock jets in it still. I just cleaned out the idle and mid bleeds too. All but the idle on #4 were clogged, badly. The motor ran good before besides needing reeds replaced. Waiting for parts now and then will run it and see.

Was kind of bummed in a way to see that manifold in there as I wanted to add that to the motor along with the earlier heads, and gut the air box. Usual work over for these pigs. Jetting is what scares me. That will be the most expensive part of it.

[Motv18]

I never worked much on them. I know the air box should have diamonds,

[keefallan]

Are you keeping the stock reeds or going composite?

[powerabout]

can you post some photos

[MattGreen]

Like Powerabout said, post a picture of the manifold where the carb bolts to. A 1990 140 should have the earlier style rounded entry/good flowing manifold. The latest style “diamond” intakes are not dramatically different performers, you can find some posts by Al Stoker that confirm this. What you don’t want are the early 1990s “brick wall” intakes that the charge literally hits 90 degree angle after the carb.

Matt

[SS Minnow]

Are you keeping the stock reeds or going composite?

I ordered a set from Carson, along with stuffers. Not sure if his are composite, or......?

can you post some photos

Yes, I will snap a bunch and have them up later today.

Like Powerabout said, post a picture of the manifold where the carb bolts to. A 1990 140 should have the earlier style rounded entry/good flowing manifold. The latest style “diamond” intakes are not dramatically different performers, you can find some posts by Al Stoker that confirm this. What you don’t want are the early 1990s “brick wall” intakes that the charge literally hits 90 degree angle after the carb.

Matt

Yes, will get some pictures up.

I have a good manifold. Two of them actually because I ordered one over the winter before I opened my motor up. I thought I had the bad one, at least from what info I could find on here. I forget but think it was around $30, so no big loss. Plus I can "practice" a little shaping. The castings are so bad on both the manifolds and what I could see inside of the cases. I can see so much power just sitting there if it were just cleaned up a bit, no changes to ports or what not.

The motor already ran like a raped ape. I cannot wait to see what it will do with a good set of reeds and the case filled a little.

[keefallan]

The reeds that Chris offers are composite. I think basically, if you aren't going stock...........yur buying a composite. You will be happy with those reeds. I have bought three sets from him.......for various motors, love em.

[SS Minnow]

[SS Minnow]

My info has 0332243 as old part replaced by 0397497 both 1990 all 140 like years.

Their 0+ Number

head doesnt match any I have, but I don’t have superseeds on them. But there is a low compression kit that also didn’t match.

Are you keeping the stock reeds or going composite?

can you post some photos

Like Powerabout said, post a picture of the manifold where the carb bolts to. A 1990 140 should have the earlier style rounded entry/good flowing manifold. The latest style “diamond” intakes are not dramatically different performers, you can find some posts by Al Stoker that confirm this. What you don’t want are the early 1990s “brick wall” intakes that the charge literally hits 90 degree angle after the carb.

Matt

I took a bunch of pictures that looked good on the small screen, but once on computer they were not so good. Anyways, here are the ones that turned out OK.

I lapped the cages with 220. Took quite a while before they were flat. Was always that one stubborn edge. They were way out. I then lapped with 400 wet. I fitted the old reeds to the lapped cages and that alone made a huge difference in how they seated. Cannot wait to see how the new fit.

Thanks for the help!!!

[keefallan]

Isnt that funny how the camera betrays you? Your part looks better in person than in the camera.......right? I feel ya. That happened to me when I was posting my porting pics a few weeks back.

Lapping........a pain in the butt..............but worth it in the end................no pun intended.

[Motv18]

Looks great.

Thinking polished or natural on the “throats?”

Some swear by polish others swear by cast “goofball” finish.

[SS Minnow]

Isnt that funny how the camera betrays you? Your part looks better in person than in the camera.......right? I feel ya. That happened to me when I was posting my porting pics a few weeks back.

Lapping........a pain in the butt..............but worth it in the end................no pun intended.

I have to mess with my camera more. It is/was a really good camera. So many more settings then I have figured out how to use yet. Funny story, out with friends and my buddies daughter grabbed my camera and snapped a bunch of pictures and they turned out really, really good. Next time I seen her I asked her how she got the pictures to turn out so well, as I had been having trouble using the camera. She tells me that she set the camera to "A" which stands for Auto. Damn kids. But, that does not work best for all occasions, especially close ups. So.........

Lapping was a pain. Thinking I should have started with the next grit lower then 220. It took quite a while putting some serious pressure on the action. And I can already see how much better it is. Before I took it all apart I looked through the assembly with a light and I could see light around the rim of almost every reed. Re-installing some old reeds just to see if I could notice a difference and yes, almost all of the old reeds were sealing up almost entirely. It is going to make a difference for sure.

It is obvious that someone was in the cages already by marks on screws etc. Just wonder if they lapped the cages and they wore this much already? Or if they just put new reeds in? Obvious that the carbs were opened before as well.

[SS Minnow]

Looks great.

Thinking polished or natural on the “throats?”

Some swear by polish others swear by cast “goofball” finish.

I am going to replace the reeds and install case stuffers for now. This is my only set up and I cannot mess with tuning at the moment. If jets were a little more readily available I might, but they are all mail order and too expensive to order a range to try.

I do have a second manifold I bought because I thought I was going to have one of the less desirable. The castings are very bad and could use some cleaning but I am not sure where to start. Mostly what holds me up is what tools should I be looking to get to smooth out some of the rough spots?

With summer coming I am not going to do much indoor work now. We have 8 months of winter here and I do work like that then.

Thanks again everybody !!!!