Hard turning 355 NEED HELP ASAP
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 25
Likes: 0
From: California, KY
Car: 1985 Chevrolet Camaro Sport Coupe
Engine: 355 4-bolt edelbrock 650 carb 58cc heads
Transmission: TH700r4 2500 stall
Hard turning 355 NEED HELP ASAP
ok read all of this and then try to help me..
i recently pulled the stock 305 and my friend rebuilt a 355 i have 58cc heads on it he put new rings in it, valve cover gaskets, oil pan gaskets, timing chain gasket. and you get the picture
well we dropped it in the maro...put the starter on bolted it up..
weve had it started several times.. but its locked up a couple staters and the new one i got the motor snapped the nose on it...i replaced with an old nose and that seemed to toughen the starter... well its turns reall good but the starter solenoid will get stuck i n the flywheel at certain points...and sometimes the engine will even rotate the opposite direction to get the solenoid out.. so i shimmed it and it grinds going in and everything so we decided its not shimming....i decided to take the plugs out and turn it...the engine turns great like this but once the plugs are in the problems start.... ideas...well i think it could be the flywheel cause it is getting stuck in certain spots.. we are going to pull the motor out and try new flywheel
i asked the mechanic at my work if he new he said i have a bad motor ..i even checked the compression with my SNAP-ON compression tester...195 psi (thats alot) yes i did it right
could it be a bad bearing a bad motor or what...
man i need help
i recently pulled the stock 305 and my friend rebuilt a 355 i have 58cc heads on it he put new rings in it, valve cover gaskets, oil pan gaskets, timing chain gasket. and you get the picture
well we dropped it in the maro...put the starter on bolted it up..
weve had it started several times.. but its locked up a couple staters and the new one i got the motor snapped the nose on it...i replaced with an old nose and that seemed to toughen the starter... well its turns reall good but the starter solenoid will get stuck i n the flywheel at certain points...and sometimes the engine will even rotate the opposite direction to get the solenoid out.. so i shimmed it and it grinds going in and everything so we decided its not shimming....i decided to take the plugs out and turn it...the engine turns great like this but once the plugs are in the problems start.... ideas...well i think it could be the flywheel cause it is getting stuck in certain spots.. we are going to pull the motor out and try new flywheel
i asked the mechanic at my work if he new he said i have a bad motor ..i even checked the compression with my SNAP-ON compression tester...195 psi (thats alot) yes i did it right
could it be a bad bearing a bad motor or what...
man i need help
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 25
Likes: 0
From: California, KY
Car: 1985 Chevrolet Camaro Sport Coupe
Engine: 355 4-bolt edelbrock 650 carb 58cc heads
Transmission: TH700r4 2500 stall
Come on i know you guys are smart on this i know nothing off starting i just help build engines and throw them in..
and thke motor seems to be very hart to turn by hand weve had some tough ones this is almost nearly impossible in spots
and thke motor seems to be very hart to turn by hand weve had some tough ones this is almost nearly impossible in spots
Senior Member
Joined: Jun 2003
Posts: 627
Likes: 0
From: Carson City Nevada
Car: 86 coupe
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3.27 posi
58cc will give you about 11/1 static compression,what kind of cam do you have?if it's a stump puller,you could have some really high compression!
stilll,it sounds like you hsve some timing issues.
stilll,it sounds like you hsve some timing issues.
Member
Joined: Sep 2003
Posts: 183
Likes: 0
From: Bucks County Pa
Car: 85 Firebird
Engine: 355 Vortec TPI
Transmission: 700r4 with Pro-Built goodies
Axle/Gears: LS1 3.42 Posi Disc
Yeah, with 58cc heads you are running a faily high compression ratio even with the stock dished pistons. You may want to look into a thicker head gasket to reduce your compression ratio, along with a high torque starter.
Member
iTrader: (2)
Joined: Nov 2004
Posts: 230
Likes: 0
From: Innisfil, ON ,Canada
Engine: 360 .060 over TPI
Transmission: T-5
check your piston to vavle clearance. also you may need to shim your starter. BTW your compression will be close to 11:1, that happened on a motor I had that detonatied it's self to death.
DISCLAIMER: I didn't put it together but that is another story!
Rotate it by hand to check that it rolls over ok.
DISCLAIMER: I didn't put it together but that is another story!
Rotate it by hand to check that it rolls over ok.
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 25
Likes: 0
From: California, KY
Car: 1985 Chevrolet Camaro Sport Coupe
Engine: 355 4-bolt edelbrock 650 carb 58cc heads
Transmission: TH700r4 2500 stall
well i have probblems i know....but i need to know if i should get rid of the engine and save it for a project and throw my 283 in it or not....any ideas (283 .30 over, hump heads Milled down...pistons Springs, General kenetics cam its loaded but i need rods roller rockers and solid lifters... )
ANYWAYS
HELPPPPPPPPPPPPP
ANYWAYS
HELPPPPPPPPPPPPP
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Junior Member
Joined: Feb 2006
Posts: 11
Likes: 0
From: canada
Car: 80 Porsche 924 TURBO
Engine: slant four, turbo
Transmission: 5 speed
hey, i may have the answer for you. i JUST finnished pretty much the same prodject your doing, and i have somewhat the same probblem. i built up a 350, new rings, new bearings, gaskets, heads (world power S/R Torquer heads), intake, exhaust etc. when i first started trying to turn it over, i was haveing the same problem (its gets REALY tight and will barely turn), the funny thing was that it sometimes turns fine. i thought at first it was cause the new bearing had very little oil in them, so i just had to prime the pump, get it started and and after running a bit it should be fine. but that didnt fix it. basicaly, your bearings are probably fine, your motor is probably fine, its just that that started motor is not meant to turn an 350 with those heads on it. the compresion is just to high (and by the sounds of it you kind of jerry riged it, i wouldnt recoment that). if i were you id go out and buy a new higher torque starter (like a couple of guys have already said). that will be abel to to turn that thing over NO problem. and you may be right, you may need a new flywheel. but start at the easier things to fix, and then work your way to the more complex things like changeing the flywheel. i hope this helps (also, try charging your battery
good luck!
good luck! Supreme Member
Joined: Jan 2003
Posts: 2,133
Likes: 4
From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Change the timing to relieve some of the compression, and use a boost battery to crank until it starts on it's own, but best to use the proper starter.
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 25
Likes: 0
From: California, KY
Car: 1985 Chevrolet Camaro Sport Coupe
Engine: 355 4-bolt edelbrock 650 carb 58cc heads
Transmission: TH700r4 2500 stall
well this is a new starter the battery is new but drained now... i have decided to keep the engine we are going to tear the heads off and throw some 67 chevy Hump heads on it...but i need the brackets because the heads as some of you know dont have accessory holes...but keep checking ill up date when we try the starter
thanks for the help
thanks for the help
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 25
Likes: 0
From: California, KY
Car: 1985 Chevrolet Camaro Sport Coupe
Engine: 355 4-bolt edelbrock 650 carb 58cc heads
Transmission: TH700r4 2500 stall
ok i got a new flywheel today im going to try to get the high torque starter.. charge my battery again..its drained from all the craking...and then what is my last choice if this soesnt help...to lower the compresssion right...
ill post back in a bit when i get the wheel and starter on thanks guys..appreciate it
all
ill post back in a bit when i get the wheel and starter on thanks guys..appreciate it
all Thread
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