Iv have read many threads on this topic. To give you an idea of what i did was remove the old head, put on a cleaner, valve lapped, slightly ported head.
Since doing that i have gained many good things but one bad one. A noisy tapping noise that increases with revs.
Common fixes iv read:
Bad oil pressure (I have a small leak on the bottom end somewhere, never caused a problem tho)
Loose broken rocker/pivot arms (All cleaned and tight to torque specs)
Bent push rods (All straight)
Lifters (Dont see why they would be playing up on this head and not the other).
After doing the head i gave it an oil change too, so new oil and filter.
I have a new set of lifters here, but i was saving them for the new 202 im building. I dont know what else could be causing this annoying ticking noise. I think the timing might be slightly out too. Going to read up on how to use a timing light tomorrow in hope to getting better timing.
Also forgot to mention the last head had a floged out spark plug thread in number 5, to it ran like a bag of shit, but no tapping noise like this new head has.
Also i used the rockers and pivot arms that were with the new head, not the old ones.
Old head:
New head:
![]()
Its not the valves clicking is it?
When they hit the seat?
Are the valve springs standard?
Not worn to the buggery?
You don't have a sticky lifter?
you recessed a seat too far when you lapped the valve and now you need to shim that rocker?
I don't know why... But I had a shitty 3.3 blue motor in a VC & if I changed the oil & didn't fit a RYCO oil filter the lifters would rattle on start up.
As soon as I changed the filter to a RYCO brand the noise would stop...Not sure if this info can be any help but for $10 worth a try.
Cheers for the ideas guys. What ill do is rip the cover off, double check. Chuck in the new lifters i guess too. Its really annoying.
"chuck in new lifters" sounds a lot easier than what it is. make sure you bed those babies in or you will have a lot more noise this time round.
Heres for working on the timing, timing light@Everything2.com , seems pretty straight forward. Have you tested the light yet, see if it works?
-Democracy must be something more than two wolves and a sheep voting on what to have for dinner.
James Bovard, Civil Libertarian (1994)
-Giving money and power to government is like giving whiskey and car keys to teenage boys.
P.J. O'Rourke, Civil Libertarian
-Government's view of the economy could be summed up in a few short Phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.
Ronald Reagan (1986)
Cheers guys, yea mate the timing light works. Ill read up soon. I better read on how to bed the lifters before i crank it over, once i figure out why its not cranking now lol.
I also removed the dizzy to find the plastic cog was missing teeth, so it has a metal one on there now from an oil pump. Only problem is, i didnt take notice of which way to rotor button was facing so i think im going to be up shit creek because its not going to be firing right. I dont know to much about timing and dizzys.
There's a little notch on the dizzy that is where it fires for TDC on #1 cyl, turn the motor over untill #1 piston is at TDC and check where the rotor button is in relation to the notch. Adjust acordingly.
Love the old bangers. So easy.
Cheers for that, but how do i know when #1 is a TDC? Wouldnt the head be required to be off to see that? Or maybe just remove #1 spark plud, put a screw driver in it and wait till its at it highest point?
Screw driver or push rod.
But yeah thats essentially it.
Cheers mate, will do that now. Dont supose you know how to bed lifters too, did a good search and all i found was you should bed them, not how to.
I've only ever done it by just runing the through the rev range nice and gently. Slowly up, hold at around 1500rpm for a couple seconds and then slowly down.
I've only ever done it with solid lifters though.
Ah true, these are hydraulics. I suppose i can give that way ago. I cant really be without a car for too long. Not to mention if this doesnt work, i dont know whati could get for $2 to fix it.. Bloody floods.
plenty of moly bond on each cam lobe and the base of each lifter. really should use a zinc additive to the oil to do it. once its all molybonded up try and do your best to have it all ready to fire immediatly so your not cranking-cranking-cranking, trying to get it to fire. once its started then itll take 20 mins of 1500rpm up to 3000 rpm then back down again.
its pretty easy, just a pain in the arse.
Ah true, its there any other way, dont have any of that lube nor can i oford it at the moment. Im pretty sure these are V8 lifters too, just did a search on the part number.
I think i burnt my coil out some how. I have no spark anymore. Tested by removing lead one, put another spark plug on and earthed it to one of the strut bolts and turned the key, no spark.
What!? Lifters on the Holden 6 are cruisy as to do!
None of this manifold removing like the V type engines
And when using he screw driver method you can get TDC almost perfectly if you really can be bothered. You mark on the balancer and block when the pistons stops moving up and then wind it further till it just starts to go down again and mark it on the balancer again. Put another line between your two balancer lines so its as close to the middle as possible and then align the middle line with the line you drew on the block.
You dont need to do that, screwdriver method is plenty accurate enough for these engines.
Easy if you have the tool. Like 10mins of wanking action with a screw driver to get one lifter out. Was not easy.
Coil has been replaced and got it to run, but still tapping like crazy, tho i did find the inspection plate leaking, badly. So waiting for the gasket to dry out and hope once it doesnt leak there it wont tap. I think its taping worse tho.
Could i get away with using thicker oil? Which would you recommend that i use? Its pissing me right off.
Time for a video of the tapping.
what did you try this time to fix it did you fit lifters and run them in for 20 mins at 2000 rpm
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
Did run it for 20 mins going from 1500 to 3000. But currently the inspection plate is of cause the bottom of the gasket got pushed up. Just waiting for it to dry then do it again. The lifters i got were a Nason: RHT969
Not the best vid but the only recording device i have.
Edit, got hold of a better recording device.
Last edited by seq4x4; 29-01-2011 at 09:32 PM.