i have a 1994 Z-28 with a little over 100k on it. i recently posted that i had a nasty lifter tick when its first started, and it goes away after about 10 mins of runing. this all recently started. yesterday i installed new lifters and push rods. and it didnt change a thing. could it be that the oil pump is going south? and not supplying the oil correctly? or could it be something else entirely?
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2000 WS6 T/A M6. Monster stage 3 clutch, flowmaster cat back, 4.10's, SLP lid, Hurst shifter.
1996 Mustang GT 5 speed STOCK DD
past rides:
1996 Mustang GTS bright tangerine orange
2003 Mach 1 azure blue drag car (10.90@118 record holder for fastest N/A mach)
1969 Mach 1 house of colors candy apple red393 stroker 100 shot (10.829@125 in street trim)
2003 Mach 1 Torched red FRPP aluminator/vortech 666RWHP
2008 Mustang GT JDM stroker long block, Saleen 2.3 twin screw
1980 Mustang L 13.7: 418 stroker
1994 Z28 A4 rebuilt from wreck
1994 Z28 A4 totaled -
Both my cars do this. Not sure if it's normal on this car, but my buddies 01 is the same way.97 Chevy 'Raro Z28 M6- Ported & Polished LT1 heads,beehives,1.6/1.94 valves, 226/231 custom cam,K&N FIPK, 94-95 BBK shorty's,ORY,Magnaflow Catback,no cats,BMR LCA Relocation Brackets,Lower Control Arms,Adjustable Panhard Bar,Eibach Pro Kit,SPEC Stage 1,Walbro 255 Fuel Pump,30LB Injectors,Pro 5.0,Short stick,MSD 8.5's,NGK TR55's,LT4KM
01 Honda CBR600 F4i-Two bro's,Corbins,SS brake lines
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many folks get this lifter tic........when they pump up..they stop.
how is your oil pressure? reads ok i assume?
The Goldens: Reno and Rocky
2008 C6, M6, LS3, Corsa Extreme C/B, (it flys) & 2008 Yukon loaded (Titanic), 03 Ford Focus..everydaydriver.
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sold: 97 Firehawk, 97 Comp T/A, 2005 GTO, 2008 Solstice GXP turbo.Comment
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oil pressure is supprisingly good. i hate to say it because i just spent a day and over $200 on parts, but i am almost leaning towards a crack in the exhaust manifold. tomorrow i am going to split the heat shields off of them and see what they look like.2000 WS6 T/A M6. Monster stage 3 clutch, flowmaster cat back, 4.10's, SLP lid, Hurst shifter.
1996 Mustang GT 5 speed STOCK DD
past rides:
1996 Mustang GTS bright tangerine orange
2003 Mach 1 azure blue drag car (10.90@118 record holder for fastest N/A mach)
1969 Mach 1 house of colors candy apple red393 stroker 100 shot (10.829@125 in street trim)
2003 Mach 1 Torched red FRPP aluminator/vortech 666RWHP
2008 Mustang GT JDM stroker long block, Saleen 2.3 twin screw
1980 Mustang L 13.7: 418 stroker
1994 Z28 A4 rebuilt from wreck
1994 Z28 A4 totaledComment
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Could also be piston slap until it warms up then goes away. Factory bores and hones aren't always perfect.
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Before you go to all that trouble, can you listen to your manifolds with an automotive stethascope? If you don't have one, they can be picked up at most auto parts stores and they are really cheap. I use mine frequently when trying to pinpoint a problem like you have. The ticking might also be one of your fuel injectors........with a stehascope you can listen to them too.Originally posted by azkkn
oil pressure is supprisingly good. i hate to say it because i just spent a day and over $200 on parts, but i am almost leaning towards a crack in the exhaust manifold. tomorrow i am going to split the heat shields off of them and see what they look like.Dave S
2000 Black Camaro SSComment
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How well do you maintain your car, in terms of 3,000 per oil change. I've seen some pretty nasty looking oil from people that go 5,000 on every oil change and they all have this same problem...and enevitably the car leaks so the put some crazy oil like 20w 50 in it and it makes the lifter tick worse.
anyways...thats something to think about.82 camaro x2:
82 z28 w/ 305 (for now) 4 speed saginaw
82 berrlinetta with 350 .060 over...3 speed auto
The Z28 is back under the knife, after the transmission, now its the entire engine....will post pics when all finished.Comment
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