What if B cylinders
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Topic: What if B cylinders
Posted By: tractorman
Subject: What if B cylinders
Date Posted: 01 Mar 2015 at 5:35pm
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So if i had an impaired B engine and a couple donor B engines with different bore and stroke, what would happen if i put one or two of the smaller sleeves and pistons into a block with 2 or 3 of the larger sleeves and piston sets ? ------------- Play on 38 B 49 WF , working on D14, D15 B10, Bee 12 B110. use 185 and 190 |
Replies:
Posted By: DiyDave
Date Posted: 01 Mar 2015 at 5:58pm
| Not a good idea to mix and match, it might end up sounding like 2 john deeres runnin... |
Posted By: CTuckerNWIL
Date Posted: 01 Mar 2015 at 7:08pm
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Unless you have regound a crank, the stroke is the same on ALL B engines. The worst thing you could do would be to put one cast piston, or 2 on the same side throw to unbalance things. Whatever you do mixing parts with different diameter pistons, and different compression ratios, is likely to cause vibration problems.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Steve in NJ
Date Posted: 02 Mar 2015 at 8:13am
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Probably would make a window in the block... LOL! ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: Gerald J.
Date Posted: 02 Mar 2015 at 8:52am
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Or break the crank from the unbalance. Actually it would benefit from matching the piston and rod weights. Why they are often bought in sets. Gerald J. |
Posted By: HudCo
Date Posted: 02 Mar 2015 at 10:34am
| well if you done that could you make a short video when you started it ? |
Posted By: PaulB
Date Posted: 02 Mar 2015 at 11:57am
| I have a lot of different used B & C engine parts available. I think I have 2 good usable matched sets of the smaller (3-14") pistons with sleeves, maybe a few od ones as well. Then I also have a selection of the 3-3/8" pistons as well. What is the number on the best ones you'd like to match up? |
Posted By: Dick L
Date Posted: 02 Mar 2015 at 3:14pm
The strokes on your B's will be the same. If you place the same size on one and two and use a different size as long as they are the same size on three and four you should be able to hold the engine together. To keep it somewhat in balance you will want the same weight going down at the same time the exact same weight is going up. If you have one weight going up as another weight is going down you would get some shake at higher RPM's. If I had the parts and was short on cash I would do it in a heat beat. The difference between you and I would be I would never told anyone.  
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tractorman wrote:Posted By: DaveKamp
Date Posted: 02 Mar 2015 at 10:36pm
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I've heard of guys doing things seemingly much worse, and not having any major issues... just keep it all in mind when you're running it... ------------- Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest. |