Alternative Fuels

yahoo: back on the road again. Recut the valves and seats, install new valve springs, and proper size shim ( gave the original machine shop a kick in the pants too!!) The garage doing the initial tune recommended running without vacuum advance hooked up. I didn't like like with all my research....so...

so...machine shop information ....valve seats were non concentric by several thou over factory tolerances, and compounded by spring height needing .060" of shims to bring it to factory specs.....will recut seats, grind valves and install new springs( that will actually close the valves!!)and shims. ...

Thanks for the replys....compression test ( worst cyl 80 lbs , best 185 lbs, rest all over the map.) Leak down test 95% leak down on 4 cyl, 90% on one , 70, 42 and 38 %. Checked HC and no blown head gasket. All air leaking back thru the mixers. So...off with the heads. ....back from the machine shop...

HC/COx test can be done @ rad shop??? Brought truck back from shop last night, definatley missing now on at least one cylinder. I will do compression test and leak down test today. I have an Edelbrock dual plane, dual 4 barrel manifold with 2 - 425 Impco's on it. It is a common chamber intake manifo...

....misinterpeted ....I'm not blaming fuel....love my lil LPG hot rod . I am looking for answers to why there is rusty valves and what can be done to prevent this in the future. Eng built in 2007, installed in truck 2008 ( dry shop, rolled over by hand occasionally)run occaisionally in 2009/10 and p...

lil history...approx 8500 km on 383 stroker engine, dual impco 425's on dual H420 Woodward regulators, single VFF lockoff......took it in to have the impco's checked and the garage calls back with a low cylinder pressure on #8 ( 80 lbs) and 185 beside it. a boreoscope check reveals rust on valves an...

I have just gotten my 1940 truck on the road which is LPG powered ( and gobs of it too, I might add 8) I am having an issue with hooking up the fule gauge. I am running an Auto Meter #1434 gauge (0-90 ohms) and a 0-90 ohm magnetic gauge on the LPG tanks. My gauge on the dash is reading full ALL THE ...

Sounds like you have your car tuned real well. this truck has been a lot of years in the making and like my earlier post said (Still waiting on the body shop....) I have a stock GM Gen I block , cast RMS heads (2.02 in, 1.6 ex) roller rockers (1.6) Edelbrock dual intake .....beefed up 700r4....with ...

Hello. Just stumbled across this site a week ago and decided to join. I am currently working on a 1940 Chevy 1/2 ton pick up. (Mostly waiting for the body shop to finish up now) I am running a 383 stroker engine, dual 425 Impco mixers, dual regualtors, single vacuum lock off. ( 700r4, NP217 transfer...