WoodAbuser
aka WoodchuckAbuser
Um.........there isn't any wood in it!
Um.........there isn't any wood in it!
How’s ur newby doing , square cutter , LolWell I'm heading out to do a bit of cutting, today's giants to slay will be; catalpa, maple(hard/sugar), and mulberry. Figured since it will most likely be me myself and I out there today that I should have a recovery saw(one to run after I'm to tired to hold anything else), so I threw a chain on the ms200 rear handle. Probably throw this one on Craigslist later, used chain, but still a little life in it, cut great the last time I had it out .
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When I was downstairs changing out the chain, I realized I had another vice I forgot about. It's been busy for quite some time holding one of my square grinders lol.
Not sure about the brand name, looks real similar to those craftsmanship, like my dad's got, for all I know, that's where I got it, I can't remember . Also, who the heck made that mess on my bench .
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It's resting by the front door lol.How’s ur newby doing , square cutter , Lol
How’s the barn coming along , ?It's resting by the front door lol.
Hope to put it in the barn this fall sometime.
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New files to go into my truck sharpening kit, the other pair goes to the basement for now, also to be put in the barn in the near future(don't think I'll use 24 plus what's already in the truck by then).
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Got concrete a couple weeks ago, and I have 4 windows, one installed and 3 openings that I need to frame in yet. The first one takes the most time, as I'm sure you know.How’s the barn coming along , ?
Wish I had of taken pics. I was into drag racing and had a little 112” wheel base front engine dragster with a Dodge 340 on it. Best time was low 9’s at 168 mph. Always wanted to put a 392 Hemi on it. Didn’t want a blower, wanted an 8 Stromberg log on it. Anyway, when Rick showed me the engine, and I saw those blowers sitting there, I was amazed. It never dawned on me how they would be driven? Front blower had a big McPherson belt. The rear blower had a short prop shaft coming out of the rear of the front blower, into the front of the rear blower. Both blowers had GMC 8-71 on them. We were told that the 71 on a blower was the optimum cubic inch per cylinder. We always joked that’s why the 6-71’s were so good on the 426 Hemi’s. 6X71 is exactly 426. With that math, two 8-71’s would put the Cat 12 over 1100 cubic inches?That was the FASH shutdown and I was caught in the middle of it which is a long story but not for here. The Cat V12 was a railroad engine, heavy and expensive to work on (like all Cats were /are) Never seen one with a Roots style blower, plenty with single and twin turbochargers however.
NiceHi guys.
Fun weekend with the kids. Boundary waters trip with a couple of day excursions from the campsite. Amongst other things, visited the oldest tree in Minnesota. ~1100 year old white cedar on Basswood lake.
Our recently refurbed boats and motors performed almost flawlessly. Needed one quick repair on the Lund’s motor due to a faulty hose connection behind the disconnect.
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(Above) The former Four Mile portage. Closed due to tree huggers and govt bureaucracy.
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Steam engine used during the logging days to pull logs out of the lake.
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Basswood portage keepers quarters.
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well, maybe one or two of your lil digger ~ ?Wish I had of taken pics. I was into drag racing and had a little 112” wheel base front engine dragster with a Dodge 340 on it. Best time was low 9’s at 168 mph. Always wanted to put a 392 Hemi on it. Didn’t want a blower, wanted an 8 Stromberg log on it. Anyway, when Rick showed me the engine, and I saw those blowers sitting there, I was amazed. It never dawned on me how they would be driven? Front blower had a big McPherson belt. The rear blower had a short prop shaft coming out of the rear of the front blower, into the front of the rear blower. Both blowers had GMC 8-71 on them. We were told that the 71 on a blower was the optimum cubic inch per cylinder. We always joked that’s why the 6-71’s were so good on the 426 Hemi’s. 6X71 is exactly 426. With that math, two 8-71’s would put the Cat 12 over 1100 cubic inches?
Cat made a lot of v12 engines over the years, so it's difficult to decern what could have been in your friends truck. Also your blower calculations aren't nessisarrily correct. The 2 stroke Detroit series of engines relied in the blowers just to run, being a uniflow design, they don't use the crankcase like a loop scavenged 2 steoke to force air into the cylinder. Basically they had no way to get air into the cylinder without a positive displacement blower. Knowing this, Detroit did indeed size the blowers accordingly, but depending on the hp level, turbos were often added for higher airflow. On the larger v series engine it's was common for twin blower and turbo applications. Those same 6-71 engines would break the little drive shaft going to the blower and wouldn't start. Was a fairly common issue back in the day. Most the old diesel grunts I know kept a few on hand in the shop and on their service trucks.Wish I had of taken pics. I was into drag racing and had a little 112” wheel base front engine dragster with a Dodge 340 on it. Best time was low 9’s at 168 mph. Always wanted to put a 392 Hemi on it. Didn’t want a blower, wanted an 8 Stromberg log on it. Anyway, when Rick showed me the engine, and I saw those blowers sitting there, I was amazed. It never dawned on me how they would be driven? Front blower had a big McPherson belt. The rear blower had a short prop shaft coming out of the rear of the front blower, into the front of the rear blower. Both blowers had GMC 8-71 on them. We were told that the 71 on a blower was the optimum cubic inch per cylinder. We always joked that’s why the 6-71’s were so good on the 426 Hemi’s. 6X71 is exactly 426. With that math, two 8-71’s would put the Cat 12 over 1100 cubic inches?
12-71's were the backbone of our fleet when I broke into the ferry boat business. Our oldest and smallest boat is still running a pair of them, I'll try and remember to grab a picture of the old girls tomorrow morning.Cat made a lot of v12 engines over the years, so it's difficult to decern what could have been in your friends truck. Also your blower calculations aren't nessisarrily correct. The 2 stroke Detroit series of engines relied in the blowers just to run, being a uniflow design, they don't use the crankcase like a loop scavenged 2 steoke to force air into the cylinder. Basically they had no way to get air into the cylinder without a positive displacement blower. Knowing this, Detroit did indeed size the blowers accordingly, but depending on the hp level, turbos were often added for higher airflow. On the larger v series engine it's was common for twin blower and turbo applications. Those same 6-71 engines would break the little drive shaft going to the blower and wouldn't start. Was a fairly common issue back in the day. Most the old diesel grunts I know kept a few on hand in the shop and on their service trucks.
On since a 4 stroke diesel doesn't need the blower (assuming maturally aspirated design) the blower was used just the same as a turbo, more air= more fuel to add= more power. Diesels require substantially more air to burn efficiently then gas engines and typically can run much higher boost levels. Realistically it could have been a 500 cubic inch engine and still been able to take advantage of twin blowers, and have more power and better efficiency.
I would be very curious to know what specific engine your buddy had in his truck.
Edit, thinking about it, my best guess would be a 3412, 27L engine. Had a pretty narrow V design, I believe they would fit, never seen a blower model, they were all single or twin turbo.
That's a rare bird in v12 format. Should have been 2 v6 bolted together. Very versatile engines. Last few I messed with were out of 60 metric ton haul trucks. 12v92 engines. Only ever messed with one 16v149 series and the engine ended up being scrapped, unfortunately and was replaced with a mtu.12-71's were the backbone of our fleet when I broke into the ferry boat business. Our oldest and smallest boat is still running a pair of them, I'll try and remember to grab a picture of the old girls tomorrow morning.
Not sure there was ever a 12V71 that was two 6V's bolted together. I rebuilt many 12V-71 over the years and all were one piece blocks and cranks. Now the 16V-71 they were basically two 8V-71s bolted front to front with two sets of timing gears running the four camshafts and all the ones I worked on had two piece cranks bolted together. The 12Vs had two V6 blowers and the 16V had two 8-71 blowers. Some had turbos blowing into the blowersThat's a rare bird in v12 format. Should have been 2 v6 bolted together. Very versatile engines. Last few I messed with were out of 60 metric ton haul trucks. 12v92 engines. Only ever messed with one 16v149 series and the engine ended up being scrapped, unfortunately and was replaced with a mtu.
Thinking about it, I think you're right. The v12s had a single head,(?) the v16 ran 4 heads. Admittedly I didn't work on any 71 series larger then the 6cyl. They weren't used in quarries or coal mines around here. Just seen truck and crane applications.Not sure there was ever a 12V71 that was two 6V's bolted together. I rebuilt many 12V-71 over the years and all were one piece blocks and cranks. Now the 16V-71 they were basically two 8V-71s bolted front to front with two sets of timing gears running the four camshafts and all the ones I worked on had two piece cranks bolted together. The 12Vs had two V6 blowers and the 16V had two 8-71 blowers. Some had turbos blowing into the blowers
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