Mercury Mark 40-H - Page 19

**Mark75H** · 01-17-2009

You think he could win 5 championships if it didn't work??

Aeroliner · 01-17-2009

I have a set of Quincy 4 to two chromed. I have a new un machined filler block and the a new water passage external casting. The pipes are with me and could send a photo. The filler blocks are at home in Louisiana. I will be selling them here soon. I have a number of new filler blocks that I will be selling. 2 through 6 cylinder Mercs and some Hotrod. I'm using an old Hubble set on my 30 mod engine Doug is building. Harries crank is going into this engine.

Alan

Aeroliner · 01-17-2009

The porting that you see is to Harries last specification that I found in his notes. There is a whole new set of angles employed. Wait till you see the intake side and the pistons. If this setup works this engine will be a barn burner. The crank also has some unique beveling that will enhance the flow path required from the new reed setup. I will post a limited number of photos until we see how it runs. Have a new hydro we will be running it on that should provide for a stable platform. Right now the powerhead is ready to be assemble and should be together in about 2 weeks. Nexts come the carbs then the throttle linkage. We plan on running a Merc mag at first. I have run a Merc mag on my test table and it will generate excellent spart up to 10,000 RPM. As you can see we moved the Mag mount 15 degrees aft so we can maintain the spark advance. The carbs will beTillison HR series. The tower housing will be a brinkman leg and utilize a new shaved "D" foot.

Alan

**Mark75H** · 01-17-2009

Quote:

Originally Posted by Aeroliner

I have a set of Quincy 4 to two chromed. I have a new un machined filler block and the a new water passage external casting. The pipes are with me and could send a photo. The filler blocks are at home in Louisiana. I will be selling them here soon. I have a number of new filler blocks that I will be selling.

Alan, the 40H exhaust is a bit different from the later Mercs isn't it?

Aeroliner · 01-17-2009

Hi Sam,
Yes it is. It has a two and two setup cast into it. Here is the photo of the exhaust side of the Red 40-H. Actually Quincy made a two part filler block for the engine that worked quite well. This phot is before we added the big sleaves and did a Brinkman port job. As you can see someone made a big error by using a file to square the ports. This is the reason we decided to play with it in that we could not bring it back to stock easily. Its a shame because it was a factory red engine. By the way I have a Mark 40-Q almost completed

Alan

Roy Hodges · 01-17-2009

[QUOTE=Aeroliner;66610]Here are some progress photos of the Merc 44 Mod engine Doug Kay is building for me. This engine is ported to the Brinkman standard and a number of unique things we are doing. Hope you enjoy the photos.

Alan.............................................. .................................................. ................................
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Seems like a Quincy looper deserves a new crankcase half like this ? - referenced to #176

**Mark75H** · 01-17-2009

something up my sleeve

John (Taylor) Gabrowski · 01-17-2009

Mark 75H: There is more to a winning engine than just the crankshaft be it standard or beveled. There is a whole engine more to include a crank to finish an entire engine. Tags make me skeptical when I didn't put them there myself. The other thing is that people can hang tags on things for a moment of convenience and miss label. That will happen time and time again as the tag can be relative and for some at the moment could be good enough. A buyer of a tagged item if it looks good generally takes things based on good faith. I thought I had new standard bore Quincy Flathead classes A / C Dykes L type pistons rings because that is what the tag said. The new owner informed me that they were all new .020 rings which gave him more latitude to deal with the looser bores in his block making him happier so some one shows me a tag so there is a tag and one takes it at face value but in fact it may not be properly tagged and those rings were not since 1967! I also find it hard to believe that someone would remove and leave out good components from good proven or winning engines though it does happen. Case in point that I had a twin blocked 4 cylinder Anzani here in components dissassembled and shelved years ago by Bill Tenney since 1964 only to find out what it was an put it together again here during the winter of 2006. There were tags involved too but with out the whole picture meaningless. Get my drift? Maybe tagged but I remain skeptical. It could have been used in the winning engine but it was shelved as a part that did not work out and where something else for a crank worked better and is still in that motor now if the engine still exists.

By the way Sam, I have two good running Merc C-Mods 4 cylinder engines I did using Brinkman's book as a general guide but neither of them use beveled crankshafts because they increased the crankscase CCs too much loosing some performance. One 30H Mod uses a Mark 50 crank and the other a Mark58 crank so both motors can use D gearcases instead of the underengineered C versions. Of the two beveled cranks I have both are in Merc FE 44 blocks were they work just fine. As you can tell I am not sold on beveled cranks either.

Still makes for speculation and good discussion don't you think?

**Mark75H** · 01-18-2009

First you say its not any different BECAUSE of the crank, then you say yours WAS different BECAUSE of the crank.

Make up your mind

John (Taylor) Gabrowski · 01-18-2009

Mark 75H: There are engine builders out there of all kinds, so you must know best. I am not in any competition with you as I only do things to satisfy my curiousity and indulge others in friendly dialogues to promote enlightenment for enlightenment sake through the same curiousities they might exhibit. What do you do it for for with the kind of one line punch lines you indulge in is for what readership wide enlightenment purposes?

You don't need to answer as your answer is moot already that I need no further answer from you for that am I ever going to bother answering in the future. There is no further point to it with but, with others curious, of course.