An intelligent gentleman has referred to this as "Gremlins", must be because he knows these Flatheads. Vergil
Same thing will happen if you just bolt an aluminum plate to a piece of iron, (think aircraft structures). They refer to it as dissimilar metal corrosion, and is the reason they coat the aluminum with zinc chromate primer. Add water which becomes electrolyte and you create corrosion faster. Find a non acidic coolant or fill the block and run it dry. If it did that to those plates, it will do the same thing to your aluminum heads. If you look at most old aluminum heads it's visible around the coolant holes.
Yea I'm aware of the corrosion but was surprised on how quick it reacted in this block will put a sac anode in the new block and other things.......as I have ideas on cooling between rounds and need the h2o...........
Well another thing I do to these motors when using a C4 is to get a truck pan do a little surgery on it, a little welding and poof I get to tighten up the torque converter bolts without dropping pan, I use a Dremmel to make a fine cut to the pan
The Man is always THINKIN, hey Carl on your motor plate was that city water or well water in there, I have a well out here I can grow all kinds of crazy looking stuff in a bucket of water , suprised it hasn't killed me yet HA HA
Tim Just realized that the last h20 in the block was Eagle field H20 oh well on to the anodes. Found some "pencil anodes" that I will put into the block that will be easy to change...... Thanks Buddy we are always looking for ways of making things easier for me as I get older, n older, n older.............
Got a few things done today...... New pilot bushing made, couldn't find one I had laying around so made one, new pulleys for fuel pump as I am going to re mount it lower, Anode holder and H2O connection, Anodes will be removable, started on head work unshrouding ect, ect, ect...............
Hey Carl: What ratio do you run your injector pump at? Can't remember, but are you running a 2-port Hilborn 4-71 injector?
I am using it to supply fuel to three carbs, and it was 1 to 1 now will be underdriven to slow it down a bit. I run a bypass line back to the tank and it has worked out well so far. Would like to run Injection when I go to the 4-71 and a 2 port would be the cats ass.
I do drain it and run water in the FED but I keep it in the Uni, if it leaks on the lake bed it soaks right in.
Thanks! Was wondering, most of the pump setups I see run at about 50 - 66% of crank speed. Part of the reason is to reduce the amount of fuel going to the bypass . . . guess some folks worry about heat and air in the fuel. This is probably more of an issue with a small tank like a digger runs. Yeah, a 2-port Hilborn sure looks nice on a 4-71 blower!
B&S: Thanks! Was wondering, most of the pump setups I see run at about 50 - 66% of crank speed. Part of the reason is to reduce the amount of fuel going to the bypass . . . guess some folks worry about heat and air in the fuel. This is probably more of an issue with a small tank like a digger runs. Yea I am running a 2 gal tank and have not had problems with heat yet just wanted to slow it down a bit anyway..... will run carburated for a while and if that ain't enough than its off to huff huff land for a while....
Humm just got the anodes in......left to right: anode and holder, put together and in the front motor mount.......
I like your anode setup - where did you buy them and do you happen to have a part number? These would be good to add to the FlatCad - as we'll have the same issues and I really don't want to corrode the heads. Nice stuff!
Carl, I'm real glad you posted this! We never even thought of it happening, so we'll benefit from your experience!
The Jalopy Journal
