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Z Re-builds Rebuilding your ZX? Post about it here. This is for major rebuild threads only, minor mods and tech questions still go in Z Related Technical

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Old 31-01-2017, 06:10 PM   #61
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dam, bad luck. im crazy busy this week, but if i get free time one afternoon or on the weekend maybe i should come listen to it
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Old 31-01-2017, 08:44 PM   #62
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Not just the lifters punping up?
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Old 31-01-2017, 08:46 PM   #63
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In post 47, you said oil was pissing out.
How much did you put in?

It is a Zed and tools can eventually drop out of the engine bay, or jam in.
Tools?
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Old 01-02-2017, 09:44 AM   #64
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Quote:
Originally Posted by rollin View Post
dam, bad luck. im crazy busy this week, but if i get free time one afternoon or on the weekend maybe i should come listen to it
Thanks mate, I'd appreciate it.

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Originally Posted by MagicMike View Post
Not just the lifters pumping up?
Highly unlikely as the motor has been running at least 2-3 times before I started it this time and I very much doubt lifters would be as loud as this noise is.

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In post 47, you said oil was pissing out.
How much did you put in?

It is a Zed and tools can eventually drop out of the engine bay, or jam in.
Tools?
First thing I did was check the dipstick just in case I'd starved it of oil forgetting to put it back in. Smack on the high level mark so no issues there.

Dropped tool was another thing I thought of but there's nothing hanging off the motor at the back where the noise seems to be coming from that a tool could have come into contact with. I'll have another look at the front end tonight just in case I've somehow left a socket extension hanging off something but I'd have thought that would have gotten flung around the garage like a 12mm socket shaped grenade.
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Old 01-02-2017, 01:49 PM   #65
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Not sure if you have all the pipe work fitted but have you checked if anything such as a nut/bolt/clamp etc is sitting infront of a turbo compressor wheel?
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Old 03-02-2017, 09:51 AM   #66
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Quote:
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Not just the lifters punping up?
Turns out Mike won the guessing game, it was indeed lifter(s). I was just being a cat and not running the engine long enough to accurately diagnose the noise. Strange because the engine has been run before without issue but obviously just where the cam had sat after the last shut down.

The lifter hasn't fully unstuck yet but it's much quieter after letting it run for a minute or two yesterday arvo over a few beers so I'm going to continue with the assembly, reinstall the front bumper and cooler piping this weekend and take it for a sighting lap to get everything up to temp and double check all hoses, lines, clamps.

So close!
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Old 03-02-2017, 10:06 AM   #67
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Talking

I think every other time you tested the engine to diagnose or plan the next steps

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Originally Posted by ryZan...........Originally Posted by shineyZx
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Old 06-02-2017, 09:48 AM   #68
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Question: are the VG30's a non interference engine? The mate who has helped me peice this thing back together viewed a first start video my wife put up on FB and is questioning whether it is a sticky lifter and not something more serious.

He believes if the lifter was stuck that the associated valve would be belting the piston and if it's not that then it's more likely done a big end.

I'm going to drop the oil and pull the plugs later today for a closer inspection just in case but what is the likelihood of having done major engine damage after replacing the filter tree gasket? I pulled the filter off and there is plenty of pressure there and the filter was full of oil.

My friend has queried the condition of the internal O ring inside the filter tree. If that was somehow compromised would it prevent oil being pumped around the engine or just allow unfiltered oil to pass the filter and into the oil cooler?

I was ok with the lifter being stuck and just needing to pop out but now I'm paranoid about having a munched engine again :sad:
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Old 06-02-2017, 02:09 PM   #69
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No it usually goes the other way. When people say stuck lifter they mean a lifter that has not pumped up. The Boise comes from the lifter not having preload against the cam so it won't have caused any contact issues. In fact that balance would be opening less than others and still at the correct time

If that o ring was not sealing it would allow a certain amount to bypass the oil filter but won't effect overal oil pressure.

If I was you I wouldn't stress too much. Run it up. Do an oil change and give it some time to settle in
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Old 07-02-2017, 01:55 PM   #70
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Thanks mate, much appreciated. Your explanation of the lifter not pumping up was exactly what I imagined was happening. I've stuffed an interference motor or two with valve slap and I know how horrific that sounds, this didn't seem to be it.

I pulled the plugs on the left bank last night and other than number 4 plug shattering (!) as I removed it, everything seems fine down inside the bores. Don't worry, it was the ceramic part and I made sure to vacuum out all of the pieces sitting in the plug recess.

Going to drop the oil tonight to double check, chuck in new plugs and kick it over. All the intercooler pipework is now together and I have a couple of spare AFM's to test. Looking strong for a block lap later this week!
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Old 09-02-2017, 11:35 AM   #71
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What's the preferred plug of choice for these rigs? Picked up a set of NGK BRPR6ES a few months ago and when I went to fit them yesterday the outer nut is much larger than the ones that came out, so much so that it was impossible to get a socket over them to tighten them up.

The ones that came out look kind of obscure. Still a NGK plug but wildly different model code and overall look. Didn't think to snap a photo but I'll grab one this arvo when I'm home for reference.
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Old 09-02-2017, 08:14 PM   #72
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What's the preferred plug of choice for these rigs? Picked up a set of NGK BRPR6ES a few months ago and when I went to fit them yesterday the outer nut is much larger than the ones that came out, so much so that it was impossible to get a socket over them to tighten them up.

The ones that came out look kind of obscure. Still a NGK plug but wildly different model code and overall look. Didn't think to snap a photo but I'll grab one this arvo when I'm home for reference.




Bcpr6es
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