Chevy and GMC Duramax Diesel Forum - View Single Post

dbert · 07-12-2009, 08:43 AM

defer, I converted my LMM last summer with GFS system. Biggest mistake I've made in 20 years.

I used to idle the engine for an hour or two at a time. I think that may have led to my problem, but I'm not the expert. I had about 1k on the engine oil when the engine oil life monitor told me to replace it. Missed opportunity. Perhaps if I DID change the oil, it may have saved me. I was convinced it was an error due to the WVO conversion. After 2k on the engine oil, I went to pull out of my drive one morning and the DIC told me there was no oil pressure. I checked the dipstick...nothin' but a sticky mess on the end of the stick. I pulled the drain plug..NUTHIN'! I dropped the lower oil pan and found it was full of a black thick jello-o-like substance. Long story longer...somehow the WVO leaked past the piston rings, contaminated the engine oil and polymerized it. After pulling the engine out, we discovered a spun main bearing. The engine had less than 20k total miles. Ever try to find a used or even a NEW replacement LMM? The first used I got was from a crap yard in Cincinatti. I pulled the glow plugs, spun the crank and was treated to a nice rusty water fountain from the cylinders. The engine had LOTS of water in it. I returned that $6,500 piece of scrap metal, but ate the $330 shipping cost. Anyway, I' ve received a few e-mails asking for my opinion on VO and DMax. Her it is again, take Chris' advise..DON'T DO IT! If you decide to try it anyway, I've got all the hardware for the dual 60gal trekker w/ IOS and a centrifuge/pump setup for sale!

07-12-2009, 08:43 AM	eBay Motors #14 (permalink)
dbert Junior Member Join Date: Aug 2008 Posts: 3	defer, I converted my LMM last summer with GFS system. Biggest mistake I've made in 20 years. I used to idle the engine for an hour or two at a time. I think that may have led to my problem, but I'm not the expert. I had about 1k on the engine oil when the engine oil life monitor told me to replace it. Missed opportunity. Perhaps if I DID change the oil, it may have saved me. I was convinced it was an error due to the WVO conversion. After 2k on the engine oil, I went to pull out of my drive one morning and the DIC told me there was no oil pressure. I checked the dipstick...nothin' but a sticky mess on the end of the stick. I pulled the drain plug..NUTHIN'! I dropped the lower oil pan and found it was full of a black thick jello-o-like substance. Long story longer...somehow the WVO leaked past the piston rings, contaminated the engine oil and polymerized it. After pulling the engine out, we discovered a spun main bearing. The engine had less than 20k total miles. Ever try to find a used or even a NEW replacement LMM? The first used I got was from a crap yard in Cincinatti. I pulled the glow plugs, spun the crank and was treated to a nice rusty water fountain from the cylinders. The engine had LOTS of water in it. I returned that $6,500 piece of scrap metal, but ate the $330 shipping cost. Anyway, I' ve received a few e-mails asking for my opinion on VO and DMax. Her it is again, take Chris' advise..DON'T DO IT! If you decide to try it anyway, I've got all the hardware for the dual 60gal trekker w/ IOS and a centrifuge/pump setup for sale! __________________ 2007.5 3500 LMM Dually crew cab long bed. *No longer* running SVO with dual 60 gal tanks.