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Old 09-05-2018, 06:17 PM   #1
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Cummins Generator support warning

Hi All
I recently had to replace the gas cut-off solenoid on my Cummins 5.5 HGJAB generator. While doing so I damaged the carburator bowl gasket. You can usually get one in a carburetor kit for less than $30. Well, this part is not available in a kit or separately. The only way to get one is to buy a whole carburetor for over $450. Cummins claims it is because of emission regulations that they can't sell a kit or separate parts. Absolutely ridiculous. So my next move is to remove the carb and get the measurement for the gasket and try to find one from a gasket or O-Ring supplier.
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Old 09-05-2018, 06:37 PM   #2
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I feel your pain. Had an issue with a carb on a 7kw a couple years ago. No rebuild kit, just an overpriced carb! The Cummins-Onan conglomerate is not the Cummins of yester-year. The only thing that stayed the same is the logo.
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Old 09-05-2018, 08:36 PM   #3
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I had the same issue trying to rebuild a carburetor on my gasoline engine pressure washer. No parts available but plenty of carbs for sale. Same emissions story.
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Old 09-05-2018, 09:02 PM   #4
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I doubt Cummins has elves carving those gaskets somewhere in a backroom. They're likely catalog parts from some gasket manufacturer, the tricky part is to figure out the manufacturer number. If you can identify the carb manufacturer and model you should be able to find gasket kits on the Internet. Worst case, there are gasket making kits.

Similar story, own experience, years ago I had a leaking damper on a mountain bike. Manufacturer wanted me to send it in and fork over $120. After some digging I got 10 of the seals for $15 from a industrial seal supply....
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Old 09-06-2018, 07:00 AM   #5
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Cummins was no help

I tried to get the manufacturer of the carb from Cummins. They said it was Onan and there was no parts breakdown for it. period.
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Old 09-06-2018, 07:15 AM   #6
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So how complex is the carb bowl gasket??

Back in the day- I would buy some gasket paper of the correct thickness and take the carb bowl and place it on the gasket paper and carefully trace around it.
Then I might carefully smear just a little coating of grease on the carb bowl edges and press it onto the gasket paper.
Now get out your scissors and exacto knife and make a new gasket.

There are tons of knock off carbs and carb kits on ebay. I guess you all have searched there for some replacement parts?
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Old 09-06-2018, 07:28 AM   #7
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Yes I have searched and found some knock-offs but they are still too much money in lieu of a $2 gasket. This gasket has to fit in a groove that the bowl sits into, so the gasket would have to be cut absolutely perfect and it is only about 1/16" wide. Easy to cut the outside diameter but the inside would be very difficult. It is like a square O-ring. I found a source for those. I just have to take the carb out and get the exact dimensions.
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Old 09-06-2018, 08:58 AM   #8
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Find someone with a Cricket Cutter, or same,and scan the gasket and have them cut it out. If you scan it and send the material, I can have my wife give it a go.
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Old 09-06-2018, 09:08 AM   #9
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A thread being discussed on the IRV2 forum. Maybe offer to buy one of the "old" carbs from one of these guys.

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Old 09-06-2018, 09:28 AM   #10
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Quote:
Originally Posted by AquaMan View Post
Find someone with a Cricket Cutter, or same,and scan the gasket and have them cut it out. If you scan it and send the material, I can have my wife give it a go.
The gasket material is probably too thick. I tried this on my wife's Silhouette and couldn't get it to work
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Old 09-06-2018, 09:41 AM   #11
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Quote:
Originally Posted by llr View Post
The gasket material is probably too thick. I tried this on my wife's Silhouette and couldn't get it to work
My wife has a larger commercial unit also that may get through it, or score it deep enough to cut the rest by hand. Although her smaller unit has cut some pretty thick stuff.
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Old 09-06-2018, 12:04 PM   #12
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You can also buy deep cutting blades for the Silhoutte Cameo, etc.. They'll cut leather, so they should cut thin rubber or gasket material. You can also recut it as long as you don't remove it from the cutter. You can do that as many times as it takes to cut through.
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Old 09-06-2018, 01:32 PM   #13
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Angry Cummins support does not support

For the past year I have been dealing with Cummins because my Marquis Gold 7K generator has been shutting off after 20 min to an hour and of half of runt time. The Code is 47 "Ignition Fault" The generator has been worked on 3 times by Cummins to the tune of $2900.00 and still does the same thing. Cummins keeps throwing parts at it BUT doesn't fix it.


I decided to contact support at the Company Website by email and listed all of the invoices, work done, parts replaced, AND DOLLARS CHARGED. There response was "Code 47 is an ignition fault, I should contact a Cummins service center and have it checked.
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Old 09-06-2018, 02:30 PM   #14
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Cummins ought to put a warning label on the outside of the carburetor, "No User Serviceable Parts Inside." And save folks a lot of trouble.
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Old 09-06-2018, 02:35 PM   #15
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Try McMaster.com They list "square o rings" in a very wide variety of sizes, but sell only in packages of the same size. At worst case, you will be able to sell them one by one, and quickly recoup your small investment. Here's a copy of the listings:
006 1/8 1/4 0.114" 0.254" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T111 $10.48
007 5/32 9/32 0.145" 0.285" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T112 10.48
008 3/16 5/16 0.176" 0.316" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T113 10.48
009 7/32 11/32 0.208" 0.348" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T114 10.48
010 1/4 3/8 0.239" 0.379" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T115 10.48
011 5/16 7/16 0.301" 0.441" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T116 10.48
012 3/8 1/2 0.364" 0.504" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T117 10.48
013 7/16 9/16 0.426" 0.566" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T118 10.68
014 1/2 5/8 0.489" 0.629" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T119 10.10
015 9/16 11/16 0.551" 0.691" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T12 6.40
016 5/8 3/4 0.614" 0.754" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T121 9.96
017 11/16 13/16 0.676" 0.808" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T122 5.80
018 3/4 7/8 0.739" 0.879" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T123 5.82
019 13/16 15/16 0.801" 0.941" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T124 8.90
020 7/8 1 0.864" 1.004" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T125 9.82
021 15/16 1 1/16 0.926" 1.066" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T126 8.96
022 1 1 1/8 0.989" 1.129" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T127 13.42
023 1 1/16 1 3/16 1.051" 1.191" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T128 10.16
024 1 1/8 1 1/4 1.114" 1.254" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T129 11.04
025 1 3/16 1 5/16 1.176" 1.316" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T13 10.32
026 1 1/4 1 3/8 1.239" 1.379" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T131 10.42
027 1 5/16 1 7/16 1.301" 1.441" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T132 12.26
028 1 3/8 1 1/2 1.364" 1.504" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T133 10.48
029 1 1/2 1 5/8 1.489" 1.629" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T134 11.36
030 1 5/8 1 3/4 1.614" 1.754" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T135 12.10
031 1 3/4 1 7/8 1.739" 1.879" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T136 14.82
032 1 7/8 2 1.864" 2.004" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T137 13.56
033 2 2 1/8 1.989" 2.129" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T138 13.18
034 2 1/8 2 1/4 2.114" 2.254" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T139 13.62
035 2 1/4 2 3/8 2.239" 2.379" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T14 10.80
036 2 3/8 2 1/2 2.364" 2.504" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T141 7.46
037 2 1/2 2 5/8 2.489" 2.629" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T142 27.00
038 2 5/8 2 3/4 2.614" 2.754" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T143 14.98
039 2 3/4 2 7/8 2.739" 2.879" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T144 9.16
040 2 7/8 3 2.864" 3.004" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T145 14.14
041 3 3 1/8 2.989" 3.129" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 100 4061T146 28.38
042 3 1/4 3 3/8 3.239" 3.379" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T147 8.56
043 3 1/2 3 5/8 3.489" 3.629" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T148 13.96
044 3 3/4 3 7/8 3.739" 3.879" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T149 10.58
045 4 4 1/8 3.989" 4.129" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T15 26.90
046 4 1/4 4 3/8 4.239" 4.379" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 50 4061T151 10.38
047 4 1/2 4 5/8 4.489" 4.629" Durometer 70A (Medium) ASTM D2000, SAE AS568, SAE J200 -30° to 212° Black 25 4061T152 12.96
049 5

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