Bad news, good news... I just need news at this point.
You're absolutely right about the intake ports, they are quite smaller than the Dell manifolds. Thats a shame , the Dells are nice units.
There is no serial on the oil filler stand, just the case stamping behind it. Not sure on the crank.
Any idea what it might be worth? We've toyed with a few different powertrain ideas, now might be the right time to let this one go.
Quote:
Originally Posted by Daves911L
Lots of stuff going on here.
Sorry to be the bearer of bad tidings, but that is NOT a 912 motor.
Pistons appear to be flat-top 1600N, 7.5:1 CR (not much compression even when brand spanking new)
Heads have no cast gusset in the valve gear area and stamped 58.0cc which both indicate early (pre-62). Probably A or B Normal heads.
Cast iron rocker stand, also indicates earlier motor.
All this makes me conclude this is very likely a 356 A or B motor from a Normal. 7.5:1 cr, 60hp. Can't see the ports, but I can imagine they are very small for your Dellorto manifolds and have a big mismatch. The Dellortos are a poor choice for this motor and will never run right. Zeniths would be correct.
P/C's will be shot. I guarantee it. Don't even consider honing and re-ringing. Even if you could, you would still have a 60 hp motor, overcarbed and unresponsive. First step would be to figure out what you have. What is the SN on the oil filler stand? What rods are in it. What crank? Maybe it can be turned into something worthwhile, or maybe it would be best to find a different motor.
Absolutely nothing wrong with a 1600 Normal. I love them and have a couple. Cool running, smooth, long lived little guys. But your 912 is several hundred pounds heavier than the 356 this belongs in, and is going to be feel pretty gutless even on the best of days with this motor.
DG
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