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Re: Re: Re: 414B ENGINE
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Posted by jdemaris on April 06, 2004 at 19:03:36 from (209.23.28.87):
In Reply to: Re: Re: 414B ENGINE posted by Greg on April 06, 2004 at 07:56:53:
I'm referring to the BD series diesels. I assume BD stands for British diesel. My first experience was from a B275 I bought at auction. It had water in the oil, bad crank journals, etc. When I pulled it completely apart I found cracks in the crankshaft main-bearing webs. Major cracks that were beyond repair. Also found many stress cracks in the cylinder head all around the precombustion chambers. When I began searching for a good used block, all I found were also cracked in the same areas. After looking a half a dozen used blocks that were ALL cracked, I finally seemed to have found a good one. It was a BD144 that had been put into a B414. The original BD154 had gotten a cracked block and the owner bought a Central Tractor "rebuilt" block. That was the one in it, and the one I bought. After getting it home, and steam cleaning it, I discovered that it too was cracked in the same spots but had been welded, then covered with Bondo, and painted - i.e. the repairs were hidden. That's the block I've been using ever since because I was never able to find one that was better. I have to assume there is a design flaw in the block. I also noticed, when assembling the engine, that the connecting rods don't have any positive method of locking the caps. Most modern rods have dowels, or slots, or fractured surfaces to keep rod caps from shifting. These rods have nothing. So, I consider the engine somewhat low-tech and low-engineered. It's also a poor starter as far as diesels go. So, I love the tractor that it's in, but don't have a lot of faith in the engine. I've probably got 500 hours on it since I put it together. Only time will tell how long it will last, but I don't expect 10,000 hours out of it.
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