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By blocky - 6 Years Ago
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hi all some assistance is required. while going through the pile looking for a y block dizzy i found one with a shorter shaft and want to know what it may suit . numbers are as follows. it is BOSCH. 9230063803. next.U-TFU8. NEXT .ARDOOE-12127-C. CAN ANYONE PLEASE HELP??
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By Robs36Ford - 6 Years Ago
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A search on Google does not find any of these numbers.
It would be best to contact them for info: http://www.bosch-classic.com/en/internet/bosch_classic/ueber/bosch_classic___kontakt/bosch_classic___contact.html
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By Florida_Phil - 6 Years Ago
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This issue was covered in detail in a previous thread. Some re-builders are using small block Ford (289/302) distributor cores as substitutes for Y-Block distributors. I have seen one so far where the shaft was repinned. The difference is in the distance from the mounting face of the distributor and the end of the drive gear. This causes two potential issues. One is with the distributor gear and cam gear alignment. The other is the short shaft does not allow the distributor gear to bottom out and ride on the block as it's suppose to. These Frankenstein distributors may work for a time, then fail.
In my opinion, your best bet is to find a known 1957 and up Y-Block distributor and rebuild it yourself. They are around, but are getting pricey. I see them on EBay for $150-200. Brand new distributors are available for big bucks. Here is a photo I took of a real 1957 Ford Y-Block distributor and an incorrect small block rebuild sold as a Y-Block replacement. As you can see, the shaft on the left distributor is 1/4" too short. I purchased the incorrect distributor from Macs a few years ago.
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By MoonShadow - 6 Years Ago
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It amazes me that any company would think that swap would work. Obviously they know nothing about the Y-Block distributor/oil pump configuration. Could this problem be solved with a longer oil pump drive if the gear location was changed to the right depth? I wonder how many "wrong" distributors they have sold and how many either failed or took out an engine. 
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By Florida_Phil - 6 Years Ago
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They work until they don't. The one I bought worked for six months of light driving. I was in the process of rebuilding my engine when it came up on this forum. With the engine apart, it was easy to see that the drive gear was not resting on the block. It was hovering about 1/4" above the block pad. This means the distributor case is holding the gear in place instead of the block surface. How long would it be before it started to wear down the distributor case itself? Probably quite some time. A friend has one of the distributors with the gear repinned. This fixes the gear issue, but the distributor shaft is still too short which does not allow the oil pump drive shaft to seat all the way. Under load this is sure to fail. The best thing to do is hunt down a genuine Y-Block distributor.
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By blocky - 6 Years Ago
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thanks so much for your info
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By blocky - 6 Years Ago
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thank you to all . very helpful cheers
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By paul2748 - 6 Years Ago
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54-56 Distributor
Tim Quinn (6/10/2019)
Here are some numbers on the distributor that might be helpful: FDT 12127 B2 623 Will sell for $50.00 plus about $12.00 freight Tim Senior Citizen Waiting Room for Heaven Florida 33706   
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By charliemccraney - 6 Years Ago
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Post it in the classifieds for much better visibility.
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By 2721955meteor - 6 Years Ago
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that is a 57 list,early cent advance,the later ones are easy to convert to ford durraspark. have converted several. the one shown can be converted but more work. the one shown would work fine as long as the later petrol is used, certainly better than vacuum only,and a must for latter carb conversion on 55/56 aplication
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By charliemccraney - 6 Years Ago
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Visible advance springs = load-o-matic. Were the very first mechanical ones the same?
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By 2721955meteor - 6 Years Ago
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the 1 i thought was early 57 is different than the picture # 12127 on mine, oae and ohd stamped on body i think you are corrects the 1 i have is cent advance and a deeper body. the advance has a straight rode like the loadematic. i was incorrect,picture is a loadamativ as vacume unit not adjustable.
mine is adjustable
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By GREENBIRD56 - 6 Years Ago
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The photos show a Load-O-Matic with vacuum advance only. Requires a carb that can supply VENTURI vacuum. Aside from exact restorations, few owners or tuners like them. The dual vacuum pot version that was on my '56 'bird resides in the attic of my garage in an unlabeled box.
I can think of about three versions of the '57+ distributors - the 1957 had a ball bearing point plate to facilitate the vacuum advance (ported vacuum was the OEM source). The next version was an Autolite with the "kidney" shaped flyweights and a simple slip pivot for the point plate to provide the vacuum advance movement.----- There is also I believe, a Motorcraft version used circa 1962/63/64. it would have the later (up into the 70's) flyweights and springs.
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By Tim Quinn - 6 Years Ago
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ITEM HAS BEEN SOLD
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