Any had an Engine ticking problem?

matthew.burgess@yahoo.com · September 10th, 2006, 06:02 PM

I Have a 1995 Aurora with the 4.0 northstar, I know a little about engine but I'm not certain on what this noise is. Since its DOHC I know that elimanates a lot because it has no lifters and rods. It sounds like to me a problem with something in the valve train. I'm not positive what this car has under the covers. I know you can not adjust valve clearance because it is has hydraulic lash adjusters but do them things ever go bad? Do you think the noise could be the valve hitting the seat, or maybe a worn sping? I have no clue some help would be nice! Thank you

rockethound · September 10th, 2006, 06:52 PM

if true that it has a hydraulic lash adjuster it sounds like it could be like a flat hydraulic lifter. i don't know much about north stars either but like the hydraulic lifter when they go flat they make a tiking sound. which would make a clearence problem in the valve train.

matthew.burgess@yahoo.com · September 10th, 2006, 08:18 PM

Since the lash adjuster is in the head how hard do you think it would be to change? Should I change one, the four on that side(front) - or do you think all 8? The back 4 four would be a pain.

toonsters · December 6th, 2006, 08:53 PM

I have a 98 Aurora, and it was ticking. I thought it was the engine ticking, it sounded like valve train noise, but the shop I took it to told me it was a cracked flywheel. I didn't quite believe them so we put the car on a lift and sure enough the noise is comming from the tranny right where the flywheel is. I don't know if this will help you, but that is what the noise was in mine.

Oldsguy · December 7th, 2006, 05:50 AM

FYI guys, I think they are actually called cam followers. I am not really that up to speed on OHV engines, someone correct me if I am wrong.

Redog · December 7th, 2006, 05:04 PM

A.I.R. tube leaks sound like valve taps

matthew.burgess@yahoo.com · December 9th, 2006, 03:49 PM

Well I had the front 8 exhaust lifters, and oil pump replaced at Cadilliac which cost about $1250 and about a week after that the back head started ticking but i'm not putting any more money in this car it only ticks at certain times so I'm just gonna let he tick. Good luck with yours.

September 10th, 2006, 06:02 PM	#1 (permalink)
matthew.burgess@yahoo.com Junior Member Join Date: Sep 2006 Posts: 4	Any had an Engine ticking problem? I Have a 1995 Aurora with the 4.0 northstar, I know a little about engine but I'm not certain on what this noise is. Since its DOHC I know that elimanates a lot because it has no lifters and rods. It sounds like to me a problem with something in the valve train. I'm not positive what this car has under the covers. I know you can not adjust valve clearance because it is has hydraulic lash adjusters but do them things ever go bad? Do you think the noise could be the valve hitting the seat, or maybe a worn sping? I have no clue some help would be nice! Thank you

September 10th, 2006, 08:18 PM	#3 (permalink)
matthew.burgess@yahoo.com Junior Member Join Date: Sep 2006 Posts: 4	Yea I think so too Since the lash adjuster is in the head how hard do you think it would be to change? Should I change one, the four on that side(front) - or do you think all 8? The back 4 four would be a pain.

December 6th, 2006, 08:53 PM	#4 (permalink)
toonsters Junior Member Join Date: Dec 2006 Posts: 1	I had the same problem I have a 98 Aurora, and it was ticking. I thought it was the engine ticking, it sounded like valve train noise, but the shop I took it to told me it was a cracked flywheel. I didn't quite believe them so we put the car on a lift and sure enough the noise is comming from the tranny right where the flywheel is. I don't know if this will help you, but that is what the noise was in mine.

December 7th, 2006, 05:50 AM	#5 (permalink)
Oldsguy Hot Rodder at heart Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 5,315	FYI guys, I think they are actually called cam followers. I am not really that up to speed on OHV engines, someone correct me if I am wrong. __________________ Dan '77 Cutlass Supreme '46 2 door "The rocket 455.....it's a sledgehammer approach to a thumbtack world" LuxBlue of HAMB.

December 7th, 2006, 05:04 PM	#6 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 1,144	A.I.R. tube leaks sound like valve taps __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1967 Olds 330 motor sitting on a stand 1985 Delta 88 w/1968 350 rocket ( MURDERED )

September 10th, 2006, 06:52 PM	#2 (permalink)
rockethound Registered User Join Date: Jul 2006 Location: michigan Posts: 88	if true that it has a hydraulic lash adjuster it sounds like it could be like a flat hydraulic lifter. i don't know much about north stars either but like the hydraulic lifter when they go flat they make a tiking sound. which would make a clearence problem in the valve train.

December 9th, 2006, 03:49 PM	#7 (permalink)
matthew.burgess@yahoo.com Junior Member Join Date: Sep 2006 Posts: 4	Lifters Well I had the front 8 exhaust lifters, and oil pump replaced at Cadilliac which cost about $1250 and about a week after that the back head started ticking but i'm not putting any more money in this car it only ticks at certain times so I'm just gonna let he tick. Good luck with yours.

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