Deniz A

Hi all i just finised doin all swaps to my car oil pump ls2 timing chain 243 heads(stock)is mlled for fresh flat surface,TSP 224R 600 lift cam 114lsa,comp cam Turnion kit, PRC 650 lift dual sprigs,New LS7 lifters with LS2 Retainers,Gm MLS head gasket,ARP head studs everything went really clean but i have a problem about tick sound i fired up the car it started perfect but damn that ticking sound made me really mad btw i cleaned the new lifters with gasoline let them dry with air after that put them in oil for 3 days. i lubricated the o- ring when installing the ported ls6 oil pump gently.Oil pressure is perfect.There is no air bubble or something in the oil because of o-ring.

Does a long pushrod cause a ticking ?

Btw i opened the valve cover all rockers seems oiled i switched 7400 pushrod to 7350 seems the ticking sound lowered.I just want to know longer pushrod cause ticking sound?

I read some articles about push rod some say longer pushrods does not make sound just make the valve open.I am stuck at this point i hope my comp cam lifter lenght checker comes fast.

Waiting for your thoughts.

Regards all

98CayenneT/A

- Check for proper push rod length with the checker
- Torque rocker arms down to 22 ft/lbs with lifters/pushrods/rocker arm on base circle of cam
- probably not causing any problems but consider getting rid of the comp trunnions for a bushing style upgrade

01ssreda4

iTrader: (96)

Brand new lifters are usually noisy for a while. How long has the engine run? Put the 7.4 pushrods back in.

Deniz A

torqued them without the TDC method gonna make it with the tdc method when i have the correct pushrod lenght.Hope its not a big problem.




I run it only 2 min just idle.

farmington

iTrader: (14)

how much was taken off of the heads?
it will probably be a little noisy till it gets up to operating temp. mine is and has been that way since the cam went in 5 years ago.

01ssreda4

iTrader: (96)

2 mins isnt long enough. Wait 5 mins minimum.

Deniz A

Does too much preload because of long pushrod cause valve train noise ?

G Atsma

Worse than that, it can cause a valve to hang open

tech@WS6store

iTrader: (2)

Never soak the lifters. too many people are doing this and we are actually having to put notices in our lifter sets. even if you soak them NEVER clean them with gasoline. 2 big no nos in a row.

Break roller loose. lube the roller, body, and cup and install.

Youre fine you havent built up enough pressure/flow etc to get everything working the way it should.

00pooterSS

iTrader: (40)

New lifters can take several minutes to quiet down. I've had them take what felt like 30 minutes but was probably 10. A lot of the old school guys I've worked with will raise the idle up or rev it lightly to help build oil pressure and quieten them faster.

Soaking in oil doesn't actually do anything that i'm aware of (they get pumped up by pressure not hanging out in oil).

But on any website you read pretty much people all over say to soak them, and if they were soaked in oil that would have been the best way to put them in, dripping with lube.

Run it longer it'll quieten down if it's the lifters after a few minutes.

Tech@ws6store what problems are you guys seeing from soaking them?

tech@WS6store

iTrader: (2)

Many.

Most recently a rebuild customer soaked his. Put them in and had issues when rotating the engine on the stand. He felt resistance, heard a slight noise like grinding, and sometimes the valves would not close all the way.
Another cust soaked them also and not only had noisy startup but also complained the rockers felt like they wouldnt torque right and worried if pushrods were too long.
We have had other issues of them hanging valves open to make for a very extended first start and no start issues.

Those are just a few actual issues related to me by customers. 2 of them within the last 2 months.

That is why we are putting notices in our lifter sets now. The note also gives info on oil hole orientation.

Note: none of these lifters were pumped up while soaking with a screwdriver etc like most were taught on old sbc lifters. they all sat anywhere from overnight to a day.

G Atsma

What is actually happening to the lifter by soaking them? Back in the day, it was "what you did" to new lifters. I always thought engine parts and clean oil were best friends! lol

tech@WS6store

iTrader: (2)

Not only has material design and quality changed but they are already assembled with a prelube in them.
The oiling system in ls is different as well.

01ssreda4

iTrader: (96)

Soaking a lifter causes zero negatives, and it may not cause any positives, but that's not responsible for whatever BS is wrong with your engine.

kinglt-1

iTrader: (26)

^Exactly...

07NBSChevy

iTrader: (1)

I always soak my lifter overnight, then let the oil drip out for a few hours before installing them. Never had any issues. I always make sure the rollers spin freely and the plunger is free and moves, I do put assembly lube on the rollers before installing. I have never installed them right after being soaked tho.

tech@WS6store

iTrader: (2)

The better question then is why even soak them? It wont lube them any more than just using assy lube on the lifter and dropping them in according to what the others have said.

01ssreda4

iTrader: (96)

That's probably true, but it still causes no negatives, so I don't see why it hurts.

tech@WS6store

iTrader: (2)

Those instances are not according to me, but from customer experience. I never soak them so I've never had those issues.

00pooterSS

iTrader: (40)

It's astounding how many askholes are on this forum.

Thanks for the response tech@ws6, I appreciate the info from an experienced standpoint, not just a few instances but from a very large pool of information to pull from. The lifters being overfull/pumped up on install is something I have heard will hang valves open and cause problems. Makes sense that that is why they don't come already immersed in fluid.

I have a strange feeling that when manufacturers build engines they don't soak the lifters first, and look at all their cars going down the road for many hundreds of thousands of miles. Guess someone should tell them they're doing it wrong.

Another alternate view point.. When a manufacturer builds a product, they do what they can to minimize returns, defects, and customer dissatisfaction so they can maximize profits. If lifters needed to be soaked, wouldn't they come immersed in a sealed package full of oil or with instructions saying that you have to before install? If it is necessary and they didn't provide that info, they would be paying for a lot of people's repair bills.