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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> Save an old set of stock valve covers. Why you ask?
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Topic Review (Newest First)
10-02-2008 04:15 PM
Double_v23
Quote:
Originally Posted by ap72
yea, plus there's the crazy power advantage, unfortuantely you have to lash the valves every few oil changes... but that's soothing to some of us idiots.

Yeah I would rather adjust the lash every 6 months and never worry about cam failure.
10-02-2008 10:02 AM
darkostoj hah the box of worms i have opened up.

I will never adjust the rockers on a motor running, i feel its a waste of time and energy....but you can't convince everyone to do things the easy and right way in this world all the time
10-02-2008 09:55 AM
pepi
Quote:
Originally Posted by Double_v23
Just exaggerating a bit....but if it takes you a really long time...you never know!
I figured that, a really long time and a load of cars, some folks have brain damage and never adjusted a valve train .... must be the water
10-02-2008 09:49 AM
ap72 yea, plus there's the crazy power advantage, unfortuantely you have to lash the valves every few oil changes... but that's soothing to some of us idiots.
10-02-2008 09:42 AM
Double_v23 I agree with that 100%.

If it were up to me every motor I build would have a solid roller cam. There is so much interpretation with Hydraulics. Solids are easy...the feeler guage don't lie!
10-02-2008 09:17 AM
ap72 just another reason to run soild cams... well sort of...
10-02-2008 09:07 AM
Double_v23
Quote:
Originally Posted by pepi

Correct! do it all the time, as to bran damage and oil smoke from doing the adjustment .................. a bit of a stretch, would'nt you agree.

Just exaggerating a bit....but if it takes you a really long time...you never know!
10-02-2008 09:05 AM
Double_v23 Yeah, I have read old car manuals that say to tighten the rocker arm adjusting nut to 20 ft/lbs....that doesn't mean you should.

I don't believe there is a cam manufacturer out there who recommends messing with the preload with the motor running.
10-02-2008 09:02 AM
pepi [QUOTE=Double_v23]wrong. IF you know what you are doing....you will be able to set them and be done with it.

You can set them with it running and when you are all done and there is oil everywhere and you have brain damage from all the smoke you inhaled.

Correct! do it all the time, as to bran damage and oil smoke from doing the adjustment .................. a bit of a stretch, would'nt you agree.

But the first line I am on board totally.
10-02-2008 08:56 AM
ap72 setting a hyd. cam by ear has been proven time and time again to be the best method- as far as your set + 1/2 turn method I just helped a guy who did that and couldn't get his engine to run for more than a few seconds... once he had oil pressure the extra 1/2 turn kept the valves from closing. Know what he said? "I did it just like the book told me to!" Albeit he was an elecrical engineer and I get nervous when they pick up anything more than a souldering iron.
10-02-2008 08:46 AM
Double_v23 wrong. IF you know what you are doing....you will be able to set them and be done with it.

You can set them with it running and when you are all done and there is oil everywhere and you have brain damage from all the smoke you inhaled. The preload will still be wrong.

Lots of people think you can set a motor "by ear" but in the end all you end up with is a wiped out cam.

Same thing as people who think they can set the timing "by ear" all you end up with is a motor that runs lean and hot and burns up plugs.

You need to use numbers and proven techniques that set all the lifters the same and to the manufacture specs.
09-30-2008 06:58 PM
Crazy Fast on Ice
Quote:
Originally Posted by darkostoj
why dont you just adjust the lifters with a 1/2 turn of preload after zero lash with the motor off
Because your engine can only tell you they are set right if it is running, I don't know about you but I've never heard a non running engine say anything.
09-26-2008 09:29 PM
OHD Yup saving old valve covers for bolt bins paid for many new parts when I sold them for 250-350 a set, for the ones for adjustable rocker arms..
09-26-2008 08:43 AM
darkostoj
Quote:
Originally Posted by Double_v23
I agree, if you know what you are doing there is no need to get oil all over your new engine, breath in all the smoke from the headers, cut up valve covers or any of that.

Set them with the motor off.
probably better for your cam too...less chance of clattering and lifters slamming the lobe of your new cam
09-26-2008 08:38 AM
Double_v23 I agree, if you know what you are doing there is no need to get oil all over your new engine, breath in all the smoke from the headers, cut up valve covers or any of that.

Set them with the motor off.
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