Lifter noise
02-12-2008, 10:21 AM
#16
Instructor
Thread Starter
Join Date: Apr 2002
Location: Just south of TX
Posts: 239
Likes: 0
Received 0 Likes
on
0 Posts
allright! now I'm ...... scared 
. If I decide to relaplace the offending lifter, I might as well replace them all, that is all 12. if I'm doing it? what else shoud I change once the engine is out?
david
. If I decide to relaplace the offending lifter, I might as well replace them all, that is all 12. if I'm doing it? what else shoud I change once the engine is out?david
02-12-2008, 10:33 AM
#17
Guru
Lifetime Rennlist
Member
Rennlist Small
Business Sponsor
Lifetime Rennlist
Member
Rennlist Small
Business Sponsor
Lifters can be replaced with the engine in the car. Unless you have other 'engine out' work to do, leave it in the car.
02-12-2008, 11:16 AM
#19
Rennlist Member
Aren't lifters somewhat expensive? Not sure it's really necessary to replace 12 lifters if only 1 is bad. If it ain't broke...
I didn't think you could do top-side lifters without pulling the engine, but it's nice to know you can.
I didn't think you could do top-side lifters without pulling the engine, but it's nice to know you can.
02-12-2008, 01:06 PM
#20
Instructor
Join Date: Mar 2004
Location: Amelia Island, Florida
Posts: 202
Likes: 0
Received 9 Likes
on
9 Posts
A couple of thoughts on replacing the lifters.
On my 95 I had some pronounced lifter noise, especially when running hard in hot weather. There was no way I could isolate the offending lifter so I replaced all 12. Considering most of the job is preparing the car for the work it seems prudent to do all 12. The effort needed to pull out each lifter ruins it anyway so its not like they can be reinserted.
In 8/06 I was able to source 12 lifters from Euroeast @ $16.90 each. The dealer wants every bit of $80. Vortex(Bob) would be a safe bet for a good price. I did not try Sunset.
With the car up off the ground (I used jackstands),mufflers off, remove heat exchanger hose(black), then remove the sheet metal for access to the upper bank. Digital manipulation at its best. Some of the nuts are tight and you need to thread the plug wires though their opening. All work can be done from the bottom. A great time to do plugs and valve cover gaskets.
I am trying to attach a pic to give you a better idea.
Be prepared for a racket when you start the car up! It may take 10-20 seconds for all of the lifters to pressure up and get quiet. Some choose to turn the car over 1st to build pressure prior to starting. Remove the coil wire from both caps.
Good luck!
Neil
On my 95 I had some pronounced lifter noise, especially when running hard in hot weather. There was no way I could isolate the offending lifter so I replaced all 12. Considering most of the job is preparing the car for the work it seems prudent to do all 12. The effort needed to pull out each lifter ruins it anyway so its not like they can be reinserted.
In 8/06 I was able to source 12 lifters from Euroeast @ $16.90 each. The dealer wants every bit of $80. Vortex(Bob) would be a safe bet for a good price. I did not try Sunset.
With the car up off the ground (I used jackstands),mufflers off, remove heat exchanger hose(black), then remove the sheet metal for access to the upper bank. Digital manipulation at its best. Some of the nuts are tight and you need to thread the plug wires though their opening. All work can be done from the bottom. A great time to do plugs and valve cover gaskets.
I am trying to attach a pic to give you a better idea.
Be prepared for a racket when you start the car up! It may take 10-20 seconds for all of the lifters to pressure up and get quiet. Some choose to turn the car over 1st to build pressure prior to starting. Remove the coil wire from both caps.
Good luck!
Neil
02-12-2008, 04:29 PM
#22
Race Director
I've had a similar situation with my car for the past 5 years. I live in NYC, but keep the car in Atlanta and only use it for a week each of the 3 or 4 times I make it home each year (so the car only gets from less than 1,000 to, at most, 2,000 miles per year).
Approx 50% of the first time starts from storage I get the clicking noise for maybe 5 minutes and then it goes away. It definitely sounds like only 1 lifter and it seems to go away faster if I actually drive it versus idle (which is probably due to the higher RPM and consequent pressure in the system). And the situation never occurs again after that initial start for the rest of the week or so that I use the car.
...edited
Approx 50% of the first time starts from storage I get the clicking noise for maybe 5 minutes and then it goes away. It definitely sounds like only 1 lifter and it seems to go away faster if I actually drive it versus idle (which is probably due to the higher RPM and consequent pressure in the system). And the situation never occurs again after that initial start for the rest of the week or so that I use the car.
...edited
Maybe you do this already.
07-28-2008, 04:42 PM
#23
Instructor
You probable have collapsed lifter(s). Not uncommon.
I have a theory about this too, that I've never investigated. I wonder if collapsed lifters might cause the engines knock sensors to think the engine is knocking due to the vibration. Then it would retard timing, causing lots of power loss. Just a hypothesis (which could be checked pretty easily, actually).
I have a theory about this too, that I've never investigated. I wonder if collapsed lifters might cause the engines knock sensors to think the engine is knocking due to the vibration. Then it would retard timing, causing lots of power loss. Just a hypothesis (which could be checked pretty easily, actually).
My car has just been diagnosed with a bad lifter and the dealer is quoting me 22 hours of labor and a total bill of about $4000!!!!
07-28-2008, 04:59 PM
#24
Wallflower
Rennlist Member
Rennlist Member
As for fixing it... that's insane. I was going to have all of mine done, including LWF and RS clutch for that price.
I've since gotten another opinion who said not to mess with it at this time. They suggested I drive it harder/more to see if that clears it up, but it's been too warm to do that so far.
