Serious flaw with Kohler engines in new Lincoln and Miller welders...

   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #1  

Arc weld

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Mar 23, 2013
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Location
Edmonton, Alberta
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MF 135
I was talking to my buddy last week who is a rig welder. He sold his old truck with a Lincoln Ranger 305G. The welder had 5700 hours on it but still ran great. He used synthetic oil since about 200 hours(break in). He really liked the 305G so bought another one. The new one seemed to rev. a little faster and put out a few more amps. He noticed it was using oil where is old one never did. He figured after break in and it should get better. It did get better but at 600+ hours was still using about 3/4 of a litre between oil changes. He took it to the warranty depot and what they told him was shocking. They said the engine is only designed for about 200 hours a year and is about a 2000 hour engine before needing a rebuild. He said that's BS, my old 305 had 5700 hours and was still running strong.

Apparently the newer Kohler engines have some kind of emissions system that feeds excess fuel back to the fuel tank and if you overfill the tank, it causes carb. flooding that in turn washes the cylinders of the engine so the rings won't seat! The worst part is that there is no mention of this in the owners manual and no sticker on the machine to warn about over filling. Millers now have a sticker warning not to overfill the tank and leave room for expansion. They didn't used to have this sticker. A new engine was $1800 but the shop said they could hone the cylinders and install new rings and head gaskets to fix the problem. They also said they had 8 other 305's with the same problem!:eek: So they did the work and my buddy went to pick up his machine. They charged him $1500 :censored: Still not bad enough is that none of it was covered on warranty!:thumbsdown: I know one of the customers where I work had the same problem. Lincoln and/or Kohler should step up to the plate. Could you imagine if you could only fill your truck 3/4 full so it wouldn't flood and cause engine damage? There'd be so much backlash, they'd have a massive recall.

My buddy sold the welder and said he'd never buy another Lincoln machine again! I can't blame him. He won't buy Miller either but that's not necessarily Millers fault. He bought a demo Miller 350P MIG welder with the aluminum package. He was building an aluminum deck for his new welding truck and wanted really nice welds on the fender wells. The pulse on the machine didn't work so he talked to the Miller rep. The Miller rep., went through the procedure to set the pulse and it still didn't work so he said to take the machine back where he bought it, Praxair. About a week and a half later, my buddy went to see what was happening with the machine. They were asking my buddy when he was going to pay for the machine and had no clue there was a problem with it!:confused3: It was still sitting in the same place where he dropped it off. My buddy was expecting it to be repaired or replaced with a new machine but they did absolutely nothing and his deck is 3/4 finished taking up space in his friends welding shop.

Customer service and standing behind your products seems to be a thing of the past. I'm sure my buddy had to use a lot of restraint in both situations. I don't know how I would have handled it.
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #2  
Must be something new. In order to pump excess fuel back to the tank, there would have to be 2 fuel lines connected to the tank. Most every small engine I have seen only has one fuel line. A lot of the bigger engines dont even come with a fuel tank.
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #3  
WOW!:shocked: What a story. A guy who makes his living with a welder doesn't want to hear that crap!:thumbdown:
Over on welding web there are a couple guys who are getting the run around with their Trailblazers.
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #4  
I have 2010 305G. I rig weld as a profession and have never had a problem with it( so far ) 2800hrs. Maybe I got a good year. But i will watch how full i fill the tank now. Thanks for posting
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders...
  • Thread Starter
#5  
These machines have separate fuel tanks supplied by the welder OEM. I don't know for sure if they have a fuel return line or not. That's what my buddy was told. We have a couple new TB 325's on the floor and I never really paid much attention to them until after my buddy told me about his problems. The sticker by the fuel cap says to not overfill and allow for expansion or carb. flooding will result. Looking at the full level marked on the semi-clear tank, even an auto shut off nozzle at the gas station would likely over fill it. Lincoln has nothing to warn about it. That's what really PO'd my buddy. What do you when your machine is tucked away between your tool cabinets and/or other tools and you need to fill up? It just seems really stupid that over filling the tank could cause expensive engine repairs. I don't know if the EFI machines are any different but the sticker is on the EFI model as well.:thumbsdown:

Swlman2, checking your oil consumption would be a good indicator of the problem. I'm almost certain your machine is new enough to be affected. My buddy had to add oil to his every 8 to 12 hours since new. Like I said, it did get better but never went away. It's also not an isolated incident. My buddy might have bought a Miller but the Subaru/Robin engine is no longer an option in them. He ended up getting a diesel Shindaiwa 400 amp dual operator with 15K generator for about $11,000. Apparently they are very popular in Australia. It is completely enclosed and only about 62 decibels full throttle but also has a feature similar to Millers excel power where it doesn't have to rev. up unless it needs to. Not too many of them here but he seems to like it so far. Has a 3 cyl Kubota.
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #6  
Thanks for the info. it has never used any oil so far but am sure to change it at least every 200 hours. This machine has made me alot of money and when its ready i will let her go. It is a great welder for the money paid.
Next up 69 sa red face!
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders...
  • Thread Starter
#7  
Could you imagine the backlash if SA200's suffered engine damage from overfilling the gas tank?:shocked: Imagine if it was a popular model of car. It just sounds so ridiculous that neither Miller or Lincoln or Kohler bothered to come up with a simple way to automatically prevent it. You go to a big job out in the boonies and you want all the fuel you can carry. :confused3::pullinghair:

Seeing as how Miller must be aware of the problem because they added the warning stickers, I bet Lincoln also knows about it. Seems like a good way to get into a class action suit? My buddy couldn't believe the cost to hone the cylinders and install new piston rings either. That shop does good work, is also a Lincoln dealer but their prices are very high. It's the same shop that fixed my 61 SA200 when I bought it. I told them to let me know if it was going to be over $500. They just went ahead and fixed it for a little over $800. I still ended up only $1300 into a good running redface but someone told me I could have held the shop to the $500 since I specifically told them to let me know if it was going to be more.
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #8  
WoW!! Makes me glad I've still got my '99 Trailblazer with the Onan engine........BobG in VA
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders... #9  
Are you talking about the Electronic Fuel Injected?

Every piece of equipment I have ever run says "Do not overfill"
Some people are just lazy to read the owners manual
 
   / Serious flaw with Kohler engines in new Lincoln and Miller welders...
  • Thread Starter
#10  
Both EFI and non EFI. EFI obviously doesn't use a carb. The lincoln manual doesn't mention it anywhere. That's why my buddy was so ticked and his has a carb! For oil, it's common but for a gas tank not so much. It's a big PIA on a welding machine! It's not like keep it 2" below the filler neck, it's more like 6-8" on the Miller. Considering a busy welder will fill the tank at least once everyday, if he accidentally over fills it, he causes serious engine damage? What if he's using a slip tank and can't keep a real close eye on the fuel level. I think the old keeping it a few inches below the filler neck is just so the fuel won't spill on the hot engine and catch fire. Imagine if you could only fill your lawn mower 3/4 full or you'd damage the engine? I think everybody that owns a lawnmower has over filled it at least once. They need to come up with a better way to prevent engine damage from an accidentally over filled gas tank. Maybe something simple like an overflow tank would work?
 

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