trouble with lifters after cam install
03-28-2006, 01:51 AM
#1
On The Tree
Thread Starter
iTrader: (1)
Join Date: Jul 2005
Location: McAllen, TX
Posts: 136
Likes: 0
Received 0 Likes
on
0 Posts
trouble with lifters after cam install have any of you guys had lifter problems after a cam swap? I just got a new cam put in and i think i have a bad lifter, its not the rockers or springs for sure i already got them checked....
Last edited by formula402; 03-28-2006 at 02:01 AM.
03-28-2006, 03:31 PM
#3
On The Tree
Thread Starter
iTrader: (1)
Join Date: Jul 2005
Location: McAllen, TX
Posts: 136
Likes: 0
Received 0 Likes
on
0 Posts
dont know... i dont think they didnt bleed out, cause i drove the car for a couple of miles and then its started making the valvetrain noise, but for sure its not the spring or rockers or pushrod
03-29-2006, 10:52 PM
#7
On The Tree
Thread Starter
iTrader: (1)
Join Date: Jul 2005
Location: McAllen, TX
Posts: 136
Likes: 0
Received 0 Likes
on
0 Posts
comp 918 springs
titanium retainers
tsp pushrods
ls2 timing chain
Thats what i used... the tapping seems to be coming from the drivers side... we checked all the rocker arms to make sure they were tightened correctly... still tapping... when u first start the car there is no tapping what so ever... then u drive it around the block and the tapping comes really lightly....but as time passes the tapping gets louder... it gets pretty loud... then u let the car cool off and start it up again and no noise until the engine gets warm...we used the stock lifters
titanium retainers
tsp pushrods
ls2 timing chain
Thats what i used... the tapping seems to be coming from the drivers side... we checked all the rocker arms to make sure they were tightened correctly... still tapping... when u first start the car there is no tapping what so ever... then u drive it around the block and the tapping comes really lightly....but as time passes the tapping gets louder... it gets pretty loud... then u let the car cool off and start it up again and no noise until the engine gets warm...we used the stock lifters
Trending Topics
03-29-2006, 11:01 PM
#9
TECH Apprentice
iTrader: (5)
Join Date: Jan 2005
Location: Addison, TX
Posts: 328
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by formula402
comp 918 springs
titanium retainers
tsp pushrods
ls2 timing chain
Thats what i used... the tapping seems to be coming from the drivers side... we checked all the rocker arms to make sure they were tightened correctly... still tapping... when u first start the car there is no tapping what so ever... then u drive it around the block and the tapping comes really lightly....but as time passes the tapping gets louder... it gets pretty loud... then u let the car cool off and start it up again and no noise until the engine gets warm...we used the stock lifters
titanium retainers
tsp pushrods
ls2 timing chain
Thats what i used... the tapping seems to be coming from the drivers side... we checked all the rocker arms to make sure they were tightened correctly... still tapping... when u first start the car there is no tapping what so ever... then u drive it around the block and the tapping comes really lightly....but as time passes the tapping gets louder... it gets pretty loud... then u let the car cool off and start it up again and no noise until the engine gets warm...we used the stock lifters
Thank Goodness Im not the only one. I have the EXACT same problem but it didnt start immediately after the cam install, about 2 weeks later.
It doesnt sound like the skreeching noise like a lifter, its definitely a tapping. driving me focking crazy, i have checked my rockers as well. I gotta figure this **** out!!!
BTW I have Futral F14
Patriot Gold Duals
7.400 hardened pushrods
Stock lifters
03-29-2006, 11:05 PM
#10
Banned
iTrader: (3)
Join Date: May 2005
Location: HTown
Posts: 427
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by formula402
...we used the stock lifters
That could be your problem right there. If you upgrade your cam (and depending on how much lift you go with), you really should get better lifters than stock....like crane.
03-29-2006, 11:07 PM
#11
TECH Apprentice
iTrader: (5)
Join Date: Jan 2005
Location: Addison, TX
Posts: 328
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 11SECDWS6
That could be your problem right there. If you upgrade your cam (and depending on how much lift you go with), you really should get better lifters than stock....like crane.
I dont think its a lifter sound that I am experiencing, (and neither does my shop)
TONS of people have aftermarket cams on stock lifters. TONS.
03-29-2006, 11:36 PM
#14
On The Tree
Thread Starter
iTrader: (1)
Join Date: Jul 2005
Location: McAllen, TX
Posts: 136
Likes: 0
Received 0 Likes
on
0 Posts
it is a stock ls1, stock shortblock and heads... i dont think there should be any piston to valve clearance... i've seen bigger cams with more lift and duration with no problems?
03-30-2006, 04:24 AM
#16
FormerVendor
iTrader: (9)
Join Date: May 2003
Location: Jacksonville, Fl
Posts: 1,573
Likes: 0
Received 0 Likes
on
0 Posts
What was your preload? I had the same taping during the same conditions. I have stock lifters, 228/228 .588/.588 114 with cnc'd 243 heads on stock 98 bottom end. 7.4 pushrods gave me too much preload. Went to 7.350=good preload, no tapping.
03-30-2006, 06:35 AM
#17
10 Second Club
iTrader: (5)
Join Date: Nov 2003
Location: Ft. Lauderdale, FL
Posts: 1,649
Likes: 0
Received 0 Likes
on
0 Posts
Most aftermarket cams have smaller base circle then your stock cam. Stock lifter like about .070 to .120 preload. As you aluminum engine warms up, the block and heads get longer (it will grow more then the pushrods). If your preload is not enough, it can start to tap after the engine warms up. I would buy a pushrod checker and do a little measuring, or at least find the new base circle of the new can and adjust the pushrod length accordingly.