Ok...I just have to do something about my dang lifters in my 70 GS 350... :rant: ...If the car sits for more then 1 hr,it seems all the lifters bleed down and when I re-start the car it sounds :jd: TERRIBLE....tick,tick tick..The noise lasts for 10 or 15 seconds then goes away... The motor has about 3000 miles on the rebuild...which was done by one of our own people 4 yrs ago...all with good stuff..Comp cam & lifters...Oil pressure is good...and the motor runs great..just the dang lifter noise... Would it be possible to put NEW lifters in with the USED cam?? And what brand name would anybody recomend?? Or is it just not possible to fix this dang problem....with out ripping the motor apart...BTW it does have adjustable 5/16 push rods...Thanks for any info...
New lifters with used cam? It will be a crap shoot, you got to yourself, do you feel lucky? If it doesn't work, you have to buy yet another set of lifters & cam... not to mention all the work (and time) again... If it was one, maybe 2 lifters, I might take that chance, but 16? :Brow: I'd splurge for the extra $150 for a new cam, probably not what you hoped to hear. o No: By the way, the cheap a$$ lifters was not the fault of the builder. :rant:
The story is there are fewer manufacturers of lifters now. I lucked out and got an old set of Johnson lifters. I understand they were bought out by someone else. Since it runs good I think I would change the exhaust system to something noisier :spank:. It really stinks that it is such a crapshoot to get good lifters now.
Have you experimented with different oil weight? Heavier oil or even a different brand or fill level (believe it or not) have all been known to affect this issue of yours (at least in my experience). Changing the cam and lifters can all be done with the enigine still in the car. Is not really that big a deal. Although, it certainly is a pain as oppossed to just having the dang thing work, right? :rant:
Thanks for the all the reply's...I did not try a heavier weight oil,just 10/40 and 10/30....I think it might be one of those things to live with I guess :Brow: ....But does any one know if it is ok just to change out the old lifter's with new ones..and STILL use the cam that is in the car now ...and is there a way to check a set of lifter's for leak down problems BEFORE they are installed in the motor uzzled: ..seems I saw a gaget in a service manual that would to just that o No: ..Thanks everyone for any thoughts on the matter :beer ..
Bill, No one has mentioned this, but I remember reading that sometimes new lifters can have quite a bit of dirt in them when they are new. This causes problems in any lifter. Somebody had good results from simply diassembling them and cleaning them. Just makre sure you keep track of what bore each lifter came out of, and don't mix lifter parts up. If you do them one at a time, and are careful, it might be worth a shot. Do a search on Lifters, I've seen this mentioned more than once. Better than replacing the cam. I think you might be OK if you replaced the lifters with new ones(I would put cam lube on the bottoms, and use EOS, then follow the break in procedure), but there's no guarantee that the new lifters would be any better.
I have a simple question for you. What kind of oil filter do you have ? Some oil filters don't have a anti-drain back valve in them. This allows all the oil to drain back into the oil pan. Then when you start it up it takes 10-15 secs for oil to pump up your lifters and oil the rest of the engine. My 2
Larry These lifters were brand new...from J.Burek..( P.A.E.)...along with my cam both from Comp cams..Al..( GS Thunder ) put the motor together and was very very very fussy...I think you know what I mean as you know him :laugh: ...and from the get go they made the ticking noise...but was hoped from the start that it was just a glich...and would not last long.. :Brow: ...but it is still there out of every 10 times I start the motor it happens 6 times or so...but NOT every time :rant: ...but I may try this just to see what happens..what does...EOS stand for??? And Thanks
Bill, I am talking about brand new lifters.(doesn't matter where they came from) There are only a few manufacturers of lifters, apparently they aren't too concerned with cleanliness when putting these things together. I've read more than once on this board about guys clening their lifters and getting good results. It's not hard to take a lifter apart. EOS stands for Engine Oil Supplement. Great for engine and cam break in. Has alot of high pressure additives like zinc, that is lacking in todays oils. Anti scuff properties, I wouldn't start a new motor without it. I even use it with every oil change. Available at most GM dealers. Part # 1052367
