27 replies to this topic

[N/A-PWR]

Hi Brian,

throw another set in, a different brand maybe, that is the Old kiss and tell method hey.

but Oldjohnno will have more info

[S pack]

Nothing wrong with your lifters. A bit of drive train clatter for 5 to 10 seconds at start up after sitting overnight is nothing to worry about.

[Redslur]

My engine did the same after building it even with qaulity anti pump up lifters...I think it is pretty normal for hydraulic lifters and performance cams...

[S pack]

My engine did the same after building it even with qaulity anti pump up lifters...I think it is pretty normal for hydraulic lifters and performance cams...

Pretty normal in bog stock engines also.

[N/A-PWR]

I am Deaf as some know,

 

which is why I have a different view on things,

 

 but noise bothers me when I can hear it hey.

 

- like when a tappet is not working, it taps and is noisy

 

- and when the Big End Goes.

 

Hope you can get the Lifters sounding good soon.

[rodomo]

Anti pump ups will bleed down over night.
They are made with bigger tolerances so they don't pump up. Makes sense?

I'd be pretty sure most lifters these days are made with bigger tolerances.

[madtoranajzedded]

bet me to it rodomo      was getting them put in my ol 6cyl motor years ago and the guy at gorringes told me they rattle on

 

start up,so decided to go the chilled based lifters.nothing wrong with them just didnt want the rattle noises

[N/A-PWR]

I used Standard Lifters,

 

they did the job no worries.

Just so you know

didn't meant I heard anything

Solids that is

[S pack]

AFAIK HT969 are standard lifters.

 

Did it say 'Anti Pump up' or 'Hi Intensity' on the box?

[S pack]

It is normal for lifters that are holding valves open to bleed down so don't be surprised if you still have 10 seconds of chatter when you start her up in the morning.

[TerrA LX]

Along with the big cams (heavy springs) thing above, Oil thickness and ambient, transient and radiant heat also play a part here.

 

Example, if you have thick oil in this motor in summer and it is now winter and you live in a freezing area you best switch to a thinner oil, this will also assist in reduced valve train wear and noise at start up.

 

 

Other than that, worn lifters and valve train will rattle for a few minutes till they warm up.

 

FWIW there are some shite lifters on the market these days, they ain't what the used to be, what with all our manufactures closing down etc etc.

[S pack]

Adjust your rockers down till they are nearly bottomed in their travel, back them up a bit, then when they bleed down overnight, they only have a little bit to take up and bingo, FIXED. 

  Rod.

No offense intended, however, that is the stupidest idea I have heard in a long time to solve a non existent issue.

 

As I have said previously in this topic "It is normal for hydraulic lifters that are holding valves open to bleed down over time". GMH went so far as to advise there service dealers that lifters that took up to 30 seconds to quiet down after start up were within normal operating parameters and should not be replaced.

[N/A-PWR]

Sounds Good Brian.

I only worry when I hear those big noises

and just throw another bottom end in then

[S pack]

S pac,

Non existent issue eh!

Try telling that to customers after they complain about a loud ticking when they start their engine in the morning and you HAVE to fix it.

I will just tell them to come and see you .

That's fine mate, send them and I'll take the time to explain to them why the momentary ticking noise occurs and why it is nothing to be concerned about..

 

BTW, there are reasons why manufacturers specify maximum adjustment figures, generally in the range of 1.5 to 2 turns from zero lash for hydraulic lifters, and you think it's fine to far exceed the manufacturers recommendations. I'm guessing you are a mechanic and you should know better than to screw the lifters down to almost the full extent of their travel.