Hi Bob; Is that Bainbridge Island? I just came from there. I have a Friend on the Island who used to have a 65 GS. PONCH:blast:
i have used the atf down the carb/water too use a squirt bottle and turn the nozzle to mist and bring the rpms up some just so engine doesnt die ,i do one side of carb at a time kind of steam cleans the cylinders i do this once and a while to reduce run on check the plugs before and after so you can gauge any effect it had
The water and ATF down the carb does work....... if you use ATF, you will have to change plugs when you are done. It will pretty much ruin them. ... and WARNING for the guys that have never done this........ don't pour the water or ATF in too fast, there is a danger of hydro-locking a cylinder and causing rod and bearing failure!
Hey Ponch, Yep, that's where I am. Next time you're in town, let me know and I'll buy you a cup of coffee. ----------------------------------------------------------------------- Alec & Mike, The mist bottle is a great idea! Never thought about that...of course, how many shop owners do you know who'd be willing to shell out that kinda dough! p Yes, quite true about pouring too fast. Of course the engine would be hard pressed to stay running, even at WOT, if you do more than trickle or spray it in. ...however, pouring the ATF in the gas tank during fill-up seems to work quite nicely. The friend who told me about it said the engines he's rebuilt have come out with very clean cylinder heads, after doing that procedure for a while. I figured, since it appears to work as a mild octane booster, "iowasfinest" might be able to get away with a little more ignition advance and not realize quite so much of a loss of power that retardation yields. Bob
My boat's engine, a late 50s or early 60s Chevy 283, I believe doesn't have these hardened seats, and the thing runs like a champ on 87. It only has 8:1 comp, and the manual specifically says to use leaded gas and also says white unleaded gas is not recommended. :laugh: This engine is constantly run hard, pulling up skiers and cruising at its red line of 4200 RPM. No blue smoke ever, even at startup, however if you leave the valve cover breather off the amount of blow by gases makes the motor look like a fog machine.:spank:
back in the 70's, there was a product on the market, in a rattle can, that u sprayed thru the venturis of the carburetor to remove the built up carbon on the piston tops. i used it & it worked. the crap that spewed out the tailpipes was awful .
I really don't have a clue what the boat is, but it is great. It may be a Chris Craft as this motor was marine-ized by Chris Craft. It's only 15' long and it's pretty much all motor. This thing is loud too. Two 3" exhaust hoses going straight out the back. No mufflers.:laugh:
Is it wood? Sounds like an "oldie-but-a-goodie" :laugh: Some of those old boats were fairly loud, with the exhaust exiting above the water line. Bob
i buy 10 gallons of av gas once a month and the residual ammounts are enough to keep 89 octane happy on the inbetweens 10 bux every other weekend or so.. Then if you're running points you can engage your choke lever , listen for the knock & "SLIGHTLY" adjust the dwell to chase it away on those really really hot days all by ear using your trusty dusty allen wrench. Mine runs a lil on the warm side as it is since I removed the heater core.i JUST ALWAYS MAKE SURE ITS @MAX VAC PRESSURE on the intake.
im gona call the buick 350 hotline late one night while breathing extra heavy and singing lief garret songs lol:idea2:
hahahah. Funny thing is I'm in a hotel lounge right now on a silly roadtrip to pickup a 65,000 mile 350 with 10 boxes of parts I've been sending to a freinds in Michigan. I got past the border paying NO DUTY or taxes because the guy was interested in the Buick parts in the back of the rental truck! Everytime I ship something across I get nailed for duty though... So roadtrip it is!
Wasn't 70 the last year for the high compression engines? If so, you should use premium fuel. From 71 on up, regular is fine.
c.r. went down somewhat in '71, but the "8:1 era" officially started in '72 (across the board). However, you are correct, in a sense. '70 would be considered the last year for (what seemed like) "unlimited c.r.". Bob
My '70 LeSabre had the "low compression" 350 which ran on regular fuel. But, there was also a "high compression" 350 which was in the 10.5:1 range and ran on "high test."
Guys, there were 2 compression ratios on the 70 350 engine. the 4bbl version had a higher compression ratio than the 2bbl. The difference was in the pistons dish. I have a 2bbl bottom end with a 4bbl intake and carb. I can run cheap gas with the timing at about 28. in mine pushing 93 octane i can bump it up to about 32. But I'd rather use the cheap gas. oh i have no smoke out the rear either. i believe the 2bbl has a 9:1 CR
If regular is fine for my 72, will it run better with higher octane fuel? Can anyone tell me about how much av fuel costs? can you just go to the airport and buy it? chris
