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    The new Wisco pistons I now stock for the 20, 40...

    The new Wisco pistons I now stock for the 20, 40 and 60 cubic inch engine call for .0065 clearance. I also use that with my merc pistons we run in D mod
  2. Doug Kay in Roseville MI. Another note I will...

    Doug Kay in Roseville MI. Another note I will have new D piston by mid October. Std. .020" and .040" oversize. Rings, pin and clips will cost $135.

    Alan
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    Sticky: Selling 3 Y-80's and parts

    In addition I am selling all my Y-80 engines and parts.
    I have 3 Yamato 80's with lots of spare parts that I am selling as a lot. It includes, pistons (new, used and oversize), ignition parts (new...
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    Sticky: Yamato 250 powerheads

    I have found a couple Yamato 250 powerheads that appear to be complete and in good condition. They roll over and are not stuck. Like to get an idea of the value of these. I would like to keep one for...
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    Sticky: 20, 40, 60 cubic inch pistons are moving forward....

    20, 40, 60 cubic inch pistons are moving forward. The forging die has been paid for and now being manufactured. Expect it to be completed in 4 weeks. Next week Wiseco will assign the part numbers for...
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    Sticky: Mercury 40 cubic inch pistons

    I have been working with Wiseco on a Mercury 40 cubic inch piston. I am paying for new dies and will have them in Standard, plus .020 and .040 inches oversize. My initial run will be for 50 pistons....
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    Sticky: Correct. They went to a metric ball bearing....

    Correct. They went to a metric ball bearing. Different thickness also
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    Sticky: The 30-H case became the 20-H replacement case...

    The 30-H case became the 20-H replacement case after mercury ran out of the short castings. APBA published info on How to cut the Skeg to meet KG-4 requirements. Later Mercury made a shot case with...
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    Sticky: Hi, Although the case is the same the drive...

    Hi,
    Although the case is the same the drive shafts are different in the A/B unit and the C unit. The A/B has a smaller 6 spline shaft and the C has a larger diameter and 10 splines on it....
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    Sticky: The 30-H introduced the deep skeg foot as did the...

    The 30-H introduced the deep skeg foot as did the 55-H. The towers are identical except for the foot mounting stud dimensions and the water tube. Later on the replacement tower for the four cylinders...
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    Sticky: Selling some engines

    David and I have a few engines that we are selling. Actually about 45 or so. Let us know what you need. There are a number of towers and lower units that we are selling also. Along with the engines...
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    Sticky: Google Mercury Parts Catalogue and follow the...

    Google Mercury Parts Catalogue and follow the likes under 2 cycle carb engines
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    Sticky: If you check the Mercury parts catalogue you will...

    If you check the Mercury parts catalogue you will find the 30-H tower listed as P/N is 1505-1115A1 and 55-H1505-1091A1. Both engines are listed together in the parts catalogue. Mercury never put the...
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    Sticky: Waldman B Looper

    A close examination of my "B" Looper that once belonged to Jerry Waldman shows that the engine is on a "C" tower with a "C" foot. This foot was also used on the 20-H unmodified as a replacement part...
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    Sticky: Mercury designed a revised Mercury skeg contour...

    Mercury designed a revised Mercury skeg contour for Waldman and I have a few. Note on this engine that there is a unique adapter between the power head and the "C" tower. It is believed that only 7...
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    Sticky: If your talking about the foot it is a D...

    If your talking about the foot it is a D Quicksilver unit
  17. Replies
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    Sticky: Marchetti and B Looper

    I have obtained an outstanding Marchetti hydro and will finish the restoration. My choice of engines will be a Jerry Waldman "B" Looper version 2.3 that I will restore over the winter. This is the...
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    Marchetti Restoration

    New Marchetti hydro added to my collection. What color should I make the deck and who's number should I use to finish the restoration.
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    Sticky: Hi Jerry, The head is orange. The S/N is...

    Hi Jerry,
    The head is orange. The S/N is 90H406 followed by an 8 laying on its side. Did a compression check and all are 155.

    Alan
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    Sticky: Just looked at a couple 40-H and they have them...

    Just looked at a couple 40-H and they have them but the friction plate is a bit thinner. Slightly different part number in the data but basically the same size. Also question on the 44XS. Did you...
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    Sticky: I think from my old parts books the Mark 50 and...

    I think from my old parts books the Mark 50 and possibly the MK 40
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    Sticky: Hi Jerry, I have not seen any on ebay or for...

    Hi Jerry,
    I have not seen any on ebay or for sale. My guess is there worth about $20 in that you can also find them in old junk 4 cylinders before the MK58.

    Alan
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    Sticky: NO, they look the same but the HG-7 is much...

    NO, they look the same but the HG-7 is much smaller. The part I need is 21960 while the KG-7/20-H is 20951.
    Thanks for asking,
    Alan
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    Sticky: Mercury 55-H/30-H Co-pilot disk

    I will be building a few engines over the winter and need 6 P/N 21906 co-pilot disks. If anyone has some to sell drop me a line.

    Thanks
    Alan
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    Sticky: Alky 10XS

    I lifted this from Hydro Racer!


    Re: MERCURY 10XS HISTORY...

    10-08-2016, 08:10 AM


    Correct me if I'm wrong, but I believe Beth was running the 7.5J, not the 10xs. Two different engines. I...
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    Sticky: Hi John, I was just informed that the 10XS...

    Hi John,
    I was just informed that the 10XS alky issue is really up for grabs. There is a thread on Hydro Racer that was posted to this thread that has statements that the engine was converted to...
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    Sticky: Thanks John, guess I was given some bad info....

    Thanks John, guess I was given some bad info.
    Found this on the Engine!
    Sam is right. Mercury and OMC, in the mid 80's were trying to romance the Stock category and get new engines approved....
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    Sticky: the lost foam units are thicker and not as...

    the lost foam units are thicker and not as accurate as the ones that came from dies. Actually need to get them profiled to get the most from them
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    Sticky: The lower units on the 44XS, 25XS and 10XS were...

    The lower units on the 44XS, 25XS and 10XS were made using the lost foam process. When they could not find the dies from old production they needed a cheap way to cast the Quicksilver units. They are...
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    Sticky: Thanks for posting. Not often do you see a 10XS.

    Thanks for posting. Not often do you see a 10XS.
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    Sticky: Mercury 10XS

    Though I would post a couple photos of a new Mercury 10XS that has never been run. Now have the complete set. 44XS, 25XS and 10XS. Mercury it is believed made 100 of these little engines. 25 were...
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    Sticky: Hobby Shop

    The hobby shop is filling up.
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    Sticky: Let the melting begin! LOL David and I work hard...

    Let the melting begin! LOL David and I work hard to keep race parts in circulation. In fact we manufacture most of the lower unit parts for the quicksilver Merc units, 2 cylinder gasket sets, Parker...
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    Sticky: Mercury racing parts

    621286212762126Last week David and I bought a trailer load of Merc Parts and engines. We are sorting them out now but when that is done we will have lots for sale. PM me or call 337-304-0379. Quick...
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    Sticky: With the NBRA racing season moving to the LBRA...

    With the NBRA racing season moving to the LBRA opening event in May we have arranged for an NBRA room rate with two hotels in Alexandria, LA. Both hotels are fairly close to the Tunk’s race site. The...
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    With the NBRA racing season moving to the LBRA...

    With the NBRA racing season moving to the LBRA opening event in May we have arranged for an NBRA room rate with two hotels in Alexandria, LA. Both hotels are fairly close to the Tunk’s race site. The...
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    Sticky: It is like my old MIDAS system I used way back...

    It is like my old MIDAS system I used way back when I owned a Mercury dealership. It is a great asset for the collectors, home mechanics and a help for dealers. Mercury did a great thing with this...
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    Sticky: Mercury Parts Catalogue

    https://www.mercurymarine.com/en/us/parts-and-accessories/parts-catalog

    It is always hard to find the parts catalogue for old engines but now Mercury has put an online catalogue all the way back...
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    Sticky: New 44XS

    With the NBRA season getting close it was time to finish up our new 44XS. This engine was built from mostly new parts that I had on the shelf. We ran it last weekend and all was well so the next step...
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    With the NBRA racing season moving to the LBRA...

    With the NBRA racing season moving to the LBRA opening event in May we have arranged for an NBRA room rate with two hotels in Alexandria, LA. Both hotels are fairly close to the Tunk’s race site. The...
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    Sticky: The Louisiana Boat Racing Association (LBRA) is...

    The Louisiana Boat Racing Association (LBRA) is pleased to announce that the City of Alexandria through the Greater Alexandria Economic Development Board (GAEDA) has approved a grant for the club to...
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    Thank you so much Steve. We are able to provide a...

    Thank you so much Steve. We are able to provide a receipt that is tax deductible for your contribution due to the 501c3 status we hold. Looking forward to seeing you at Tunk's where I am sure you...
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    Sticky: Quincy modified 20-H

    I started on the restoration of my Quincy 20-H and found it to have some issues. When I bought the engine I did not know the condition. Well the sad thing is that it will require a replacement crank....
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    LBRA and OBRA clock fund

    We are very close to our goal of $6,200., to pay for a new 36" Alzetec clock that we'll be used at some of our races and the Claremore Nationals. Many clubs have this clock as it is the standard now...
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    Louisiana Boat Racing

    As we try to rebuild boat racing here in the south we have set some basic goals. The first of which is to get our club up and running with now has 23 members. We had to create LBRA this past spring...
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    Sticky: 20-h s/n

    Sorry Tom, I did not want to blow your cover! You did a great job finding Len's old list. This morning I found 4 other 20-H's here in Louisiana and yesterday I talked with Albert Snell about getting...
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    Sticky: Louisiana Boat Racing Assn. (LBRA)

    The Louisiana Boat Racing Association (LBRA) is pleased to announce that the City of Alexandria through the Greater Alexandria Economic Development Board (GAEDA) has approved a grant for the club to...
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    Sticky: 20-H engines

    My brother David is preparing a list of 20-H S/N that are out there. Len Lupkin had started it but the effort was discontinued when the web site was shut down. We were able to recover the list and...
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    888 ignition

    Hi Tim,
    I have been looking at my Electromotive ignition system we developed and run on our 4 cylinder Mercs and I believe you can use the box with the dual output coils. It should be very easy...
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    Sticky: 75-H Project

    Over the last couple months I was able to buy most of a 75-H. I now have most of everything I need to build the engine. What I am looking for are 2 prop shafts and 2 drive shafts to put the two lower...
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