Thread: One Way To Build A 12 Cylinder Ardun or not

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Pat-Thanks for all the suggestions and help, please keep them coming.

Ted- Yes the valve diameters are the same, I'm going to change that. I think they did that just to do everything they could to get it to breath.






We have got a lot done, I know the valve angle we are going to use, valve diameter and the geometry for the rocker arms.
We wanted to make sure that our drawings so far were accurate. So we took the drawing to our lazier cutter and had him cut us what looks like a very thick head gasket. Now we know we have everything in the right place, water passages, head studs and bore centers.
The next thing is the drawings for the valve train and intake and exhaust ports.
Just a side note on this, usually when you draw something like this you just draw a center line down the middle and draw one side then make a mirror image for the other side. Not the case with this engine!!
Ken

Ken I don't know how you do it. Work, then the 32 project and the Ardon all at once. Keep posting. Also what block are you using? Did ardon have a v-12? or is the block from something like a Jag? Hope I'm not repeating a question here!

Originally Posted by stovens

Ken I don't know how you do it. Work, then the 32 project and the Ardon all at once. Keep posting. Also what block are you using? Did ardon have a v-12? or is the block from something like a Jag? Hope I'm not repeating a question here!

Looks like one of the old Lincoln V-12 blocks, a very interesting engine considering when it was designed!!!!!

Steve- It's a Lincoln V12 flathead out of a '46 Lincoln coupe, like Dave said.
The Ardun project I work on it when I'm at work, that's not to time consuming for me. I'm just designing it, the real time comes in the drawing department, I can't do that. Then I go home and work on the roadster. My friend works nights, he's off for veterans day so we will pull an all nighter, the clock is ticking
Ken

That's certainly some very nice work Ken, ain't them laser cutters just the neatest thing since sliced bread????

Been awhile since I worked on a V-12, but I sure do remember what a booger it is to do work on the distributor while it's still installed!!!! Just looking at the surface and layout of the block shows that their is no room for error in designing any of the components for an OHV conversion..... I'll bet a CNC man could start a whole new career writing the program to make a billett head for it!!!!!!!!

Another outstanding project Ken, maybe this is the one to plan ahead for an entry in the GNRS. Just a thought.

Mike

Ken, given your history with bikes this might be some inspiration............

That is one double throw down super kewl scooter you found a pic of Uncle Bob!!!!! Some day I'm going to get caught up and start me a trike project with some sort of outlandish engine, the V-12 would sure do it!!!!!

Originally Posted by Dave Severson

That is one double throw down super kewl scooter you found a pic of Uncle Bob!!!!! Some day I'm going to get caught up and start me a trike project with some sort of outlandish engine, the V-12 would sure do it!!!!!

how about a donovan 734 i know a guy that will sell one

Originally Posted by pat mccarthy

how about a donovan 734 i know a guy that will sell one

That would be way big fun, huh?????

Dave-Thanks, I'm thinking of using two six cylinder distributors with a common drive off of the cam.

Mike- Thanks, I will be luck to make it threw this one

Bob-Wow, never saw that before, thanks.

Pat- My theory is,If some is good, more is better, and too much is just enough

Here are some preliminary drawings on the heads.
Ken

looks good have to move the spark plug in front of the two valves .i like to see the intake runners lay out. are you going to tube the intake push rod and run it thru the port . you going with the t@D /jesel rocker stands type . i hope you do not mind here is one of my heads i had to show someone i have alot of time in them but nothing like you are doing

Pat-Nice head, you must have a lot of time in them.
I'm going to make it a swirl port design, so the intake runner will actually clear everything. Where it gets tricky is the location of the intake and exhaust valves. They swap positions depending on the location of the head studs so I can keep the runners close to the same. The cam grinder is going to love me The rocker stands are going to be a little different, I will show that next with the port design.
Ken

Originally Posted by Ken Thurm

Pat-Nice head, you must have a lot of time in them.
I'm going to make it a swirl port design, so the intake runner will actually clear everything. Where it gets tricky is the location of the intake and exhaust valves. They swap positions depending on the location of the head studs so I can keep the runners close to the same. The cam grinder is going to love me The rocker stands are going to be a little different, I will show that next with the port design.
Ken

about the cam are you going to make your new steel core for that .thank on the heads . i will have some time in the engine when done the block is just about done i hope to have the the two titanium crower rods or just may have some steel olivers rods made up some of the same stuff your doing i just did not have to make the heads

Pat-Yes it will be a roller, I think with all the angle's I'm dealing with it will help. I'm using Chrysler roller lifters, the diameter matches the lifter bore. Lucked out on that one
Ken