Attn: Ocbaud and TIMSPEED - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gldevall · 11-24-2004, 09:49 PM

Didn't you guys have flywheel problems? Cracked or broke. What did it do? Did it knock?

ocbaud · 11-24-2004, 09:58 PM

my stock flexplate was cracked pretty bad about a year and a half ago on the 305. i had a shop replace it along with the rear main seal that was leaking.

the ticking wasnt noticable while driving, but you could hear it if i went in reverse at any speed whatso ever. it would make the ticking sound every once in a while right after i come out of park and tap on the gas in drive.

picture this:

the big round holes that are all around the flexplate. well, i had cracks running from at least 4 of the crank bolts all the way to each of those holes.

Slonaker · 11-25-2004, 12:46 AM

When the flexplate on my friend's C10 cracked, it just made a clicking sound when the engine was running.

Slonaker

BowTieMan · 11-25-2004, 01:03 AM

My 88 4.3 blazer makes a high click at idle. Then when you go to about 1500 rpm it speeds up then at 2000 its completely gone. And when I kick the air on at idle - 1500 its is a really loud fast click. And it sounds like it is coming from under the truck and the back of the motor. Think its the flexplate?

MylilBowTie · 11-25-2004, 01:21 AM

Mine the whole center broke out from the rest of the flexplate. Funny thing was it still started right up and not even a hint of it being bad. I found this out when I changed the transmission that went out. If you loosen the convertor and push it back. Take a screwdriver metal end and tap the flexplate. If it rings like a bell its said to be good, if its dull its said to have a fracture in the flexplate.

ocbaud · 11-25-2004, 01:36 AM

Quote:

Originally Posted by BowTieMan

My 88 4.3 blazer makes a high click at idle. Then when you go to about 1500 rpm it speeds up then at 2000 its completely gone. And when I kick the air on at idle - 1500 its is a really loud fast click. And it sounds like it is coming from under the truck and the back of the motor. Think its the flexplate?

sounds like it is

gldevall · 11-25-2004, 01:33 PM

That is what I think it is. It is a $20 flywheel from AutoZone. I figure I have between 300-350 ft/lbs of torque running through it. I don't think that it is strong enough to handle that much

cochran63 · 11-25-2004, 03:10 PM

I didn't want these problems with my BB so i ordered a tci one for my truck.

TIMSPEED · 11-25-2004, 06:08 PM

I didn't have flexplate problems..just had the wrong starter. Now, my truck starts nice and queitly.

ocbaud · 11-25-2004, 06:50 PM

Quote:

Originally Posted by cochran63

I didn't want these problems with my BB so i ordered a tci one for my truck.

qft

i got a nice sfi approved tci one for my engine

SanitysBane · 11-25-2004, 06:51 PM

i got a generic sfi arpoved, good enough for me

11-24-2004, 09:49 PM	#1
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	Attn: Ocbaud and TIMSPEED Didn't you guys have flywheel problems? Cracked or broke. What did it do? Did it knock? __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

11-25-2004, 12:46 AM	#3
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	When the flexplate on my friend's C10 cracked, it just made a clicking sound when the engine was running. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

11-25-2004, 01:03 AM	#4
BowTieMan Registered User Join Date: Dec 2003 Location: Glendale Arizona Posts: 747	My 88 4.3 blazer makes a high click at idle. Then when you go to about 1500 rpm it speeds up then at 2000 its completely gone. And when I kick the air on at idle - 1500 its is a really loud fast click. And it sounds like it is coming from under the truck and the back of the motor. Think its the flexplate? __________________ "A true hotrodder wouldn't be content untill he had created a car so violent, so hairy, so totally sick that the very act of dropping the hammer would result in instant death. Anything less results in the need to go faster." - Tony DeFeo

11-25-2004, 01:21 AM	#5
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	Mine the whole center broke out from the rest of the flexplate. Funny thing was it still started right up and not even a hint of it being bad. I found this out when I changed the transmission that went out. If you loosen the convertor and push it back. Take a screwdriver metal end and tap the flexplate. If it rings like a bell its said to be good, if its dull its said to have a fracture in the flexplate. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

11-25-2004, 01:33 PM	#7
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	That is what I think it is. It is a $20 flywheel from AutoZone. I figure I have between 300-350 ft/lbs of torque running through it. I don't think that it is strong enough to handle that much __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

11-24-2004, 09:58 PM	#2
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	my stock flexplate was cracked pretty bad about a year and a half ago on the 305. i had a shop replace it along with the rear main seal that was leaking. the ticking wasnt noticable while driving, but you could hear it if i went in reverse at any speed whatso ever. it would make the ticking sound every once in a while right after i come out of park and tap on the gas in drive. picture this: the big round holes that are all around the flexplate. well, i had cracks running from at least 4 of the crank bolts all the way to each of those holes.

11-25-2004, 03:10 PM	#8
cochran63 Registered User Join Date: Jan 2004 Location: Oklahoma Posts: 1,057	I didn't want these problems with my BB so i ordered a tci one for my truck. __________________ Youth soon passes away, but immaturity can last a life time.

11-25-2004, 06:08 PM	#9
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	I didn't have flexplate problems..just had the wrong starter. Now, my truck starts nice and queitly. __________________ I have a few cars... See Them Here

11-25-2004, 06:51 PM	#11
SanitysBane Registered User Join Date: May 2004 Location: Lubbock, Texas Posts: 2,121	i got a generic sfi arpoved, good enough for me __________________ '96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer

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