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PE-95 Carter WO carburator alternative


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  #1  
Old 01-31-2015, 12:00:38 PM
plym49 plym49 is offline
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Default PE-95 Carter WO carburator alternative

The original Carter WO carb in my PE-95 has been rebuilt plenty of times over the years and I am just not happy with it.

Looking down the carb throat while the genset is running, the fuel dribbles out of the orifice in the venturi. That does not seem right for good operating economy.

Usually, right after a rebuild the fuel come out in a proper mist, but soon it resumes dribbling.

I suspect that there is some crud inside a passage that has escaped all of the disassembly, dipping, passage cleaning, blowing out, etc., etc.

I can rebuild it yet again, send it out for someone else to do it, or look for a replacement. Which got me thinking that I should be able to replace it with a (slightly) more modern and more available unit. Maybe a Jeep vehicle carb, or from a VW or something.

Does anyone know of other carbs that are reasonable alternatives for the engine in my PE-95?
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Old 01-31-2015, 12:09:49 PM
yellowlister yellowlister is offline
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Default Re: PE-95 Carter WO carburator alternative

That's how they work.. my onans if you look down the carb while running its the same.. and they use the gph as stated by the factory.. those engines are thirsty.. do you know how much fuel your burning and at what load?
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Old 01-31-2015, 12:20:42 PM
plym49 plym49 is offline
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Default Re: PE-95 Carter WO carburator alternative

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Originally Posted by yellowlister View Post
That's how they work.. my onans if you look down the carb while running its the same.. and they use the gph as stated by the factory.. those engines are thirsty.. do you know how much fuel your burning and at what load?
I actually got mine down to about 1.3 GPH under load. Now full load but a decent run-the-whole-house load. That was from milling the head. Before that it was something like 1.8 GPH.

However, I have occasionally gotten my carb to mist instead of dribble. It is not dribbling under no load. Hence my concern - but your statement is interesting; did not realize the dribbling could be normal.

Edited to correct typo ('not' instead of 'now').
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Old 01-31-2015, 01:30:58 PM
Kevin K Kevin K is offline
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Default Re: PE-95 Carter WO carburator alternative

I have a PE-95 as well, that I don't use because of the gasoline consumption. It's just too much to fuel it over a multi-day power outage.

There is a replacement carburetor for the L134. It runs about $150.

http://www.kaiserwillys.com/product/...ts-accessories

I assume it would work in a generator application as well.
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Old 01-31-2015, 02:40:53 PM
plym49 plym49 is offline
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Default Re: PE-95 Carter WO carburator alternative

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Originally Posted by Kevin K View Post
I have a PE-95 as well, that I don't use because of the gasoline consumption. It's just too much to fuel it over a multi-day power outage.

There is a replacement carburetor for the L134. It runs about $150.

http://www.kaiserwillys.com/product/...ts-accessories

I assume it would work in a generator application as well.
Thanks for the link - that looks promising. Looks like the throttle linkage connection is a bit different; not too bad to handle.

I have been researching the original PE-95 Carter WO, and it seems that the lower casting is different. Smaller passages and some other changes. I wonder if the differences are because the generator carbs really don't idle - they always run at 1800 rpm.

That makes me wonder if closing the idle jet all the way would make a difference in how they run, as maybe a little fuel is always dribbling out of the idle jet. Something to fool with, I guess, but not the main issue.
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Old 01-31-2015, 04:52:02 PM
Kevin K Kevin K is offline
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Default Re: PE-95 Carter WO carburator alternative

The intake manifold is different (smaller passages) on the L134 used in the PE-95 generators, and the power needle in the carb is different. I wasn't aware the carburetor body was different.
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Old 01-31-2015, 05:10:03 PM
plym49 plym49 is offline
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Default Re: PE-95 Carter WO carburator alternative

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Originally Posted by Kevin K View Post
The intake manifold is different (smaller passages) on the L134 used in the PE-95 generators, and the power needle in the carb is different. I wasn't aware the carburetor body was different.
I believe it is the cast iron base that is different. I could be mistaken, but that's what I got out of some other threads.
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Old 01-31-2015, 10:44:17 PM
Rich Mc Rich Mc is offline
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Default Re: PE-95 Carter WO carburator alternative

I sent you a PM
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Old 02-01-2015, 12:37:32 AM
plym49 plym49 is offline
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Default Re: PE-95 Carter WO carburator alternative

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Originally Posted by Rich Mc View Post
I sent you a PM
Got it, thanks. Replied.

I ordered a Solex replacement. Will report back on how much adaption is needed and how it runs afterwards.

I spent some time thinking about why I've been having chronic problems with the carb getting clogged. It's been happening for years: get everything good and clean, unit runs perfectly, shut it down -- unit can sit for 6 months to two years before being needed again. Start it up, carb gets clogged right away, open her up, clean her out, unit again runs fine, rinse and repeat.

This is despite good gas, clean gas tank, new fuel filters, etc.

Here's what I think is happening:

Over the life of the generator, rust and silt and who knows what has built up a layer on the inside surface of every component of the fuel system. Think of it like cholesterol lining an artery. Not enough to restrict flow; just a surface layer. But everywhere.

Next, add today's fuels with alcohol and detergents.

My opinion is that the new gasolines break down this layer of schmutz and rinse it downstream. Since it covers every interior surface of the fuel system, changing a fuel filter is not enough since there is hard line, the fuel pump, etc. etc. that never gets changed out.

Also, even an inline filter right before the carb is ineffective because the dissolved silt is so fine that some passes through. But it can and will clog the interior passages and jets of the carb.

If this theory is correct, then I need to replace every component of the fuel system. I already have a clean tank, but everything downstream of that must be replaced.

This includes the hard line and fuel pump - I am going to try one of those generic 2-3 psi electric pumps. New filters and sediment bowls.

Hopefully, that will solve this issue. We'll see.

In the interim, does this theory make sense?
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Old 02-04-2015, 11:50:00 PM
plym49 plym49 is offline
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Default Re: PE-95 Carter WO carburator alternative

I picked up a Solex clone (Omix-Aida) from Amazon. I could have gotten a genuine Solex from the link someone posted earlier; in the end it is easier to deal with Amazon.

Here are shots of the original Carter WO and the Solex replacement.

The key will be getting the governor linkage to duplicate the original geometry.

I will also be replacing the stock mechanical fuel pump with a generic 2 - 3 psi electric. Plus in line filters.

Would like to post pix, but it looks like an iPhone photo is too large for this site.
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