Ran 11.53 down the track ! now i hear aloud ticking!

leathal injection · 08-09-2004, 09:07 AM

i went to the track yesterday, ran 11.53 @120 mph. as soon as i drove around to pick my slip up , noticed my cars ticking pretty loud and hesitating, and when i give alil gas sometimes it sounds like its gotta slight backfire.
1st thing i thought was a bent pushrod, as soon as a got home i checked them out , there all straight! witch really didnt surprise me cause i just reaplaced them 6 months ago (with hardened pushrods) ..... what could it be, collapsed lifter ? bent valve ? any ideas ?

ifs it a bent valve, i think im gonna trash my GT40 P's and get new heads... How does the edel RPM performer 2.02 heads, perform against a pair of AFR 185's ?? please help ...

Thanks guys.

~The Jester~ · 08-09-2004, 10:30 AM

Sounds like you're barking up the right tree at least. Ticking is probably a lifter, and the running crappy and minor backfire is probably a burned valve, not necessarily bent but could be. Run a compression test, and that'll let you know where the problem is.

Good luck!

leathal injection · 08-09-2004, 11:22 AM

ok , i went and bought a compression tester...

i take the #5 spark plug out and its TOTALLY MELTED !!! i ran the compression test on that cylinder anf there NO compression in that cylinder.
i thought maybe i bought a busted tester , but it shows compression on other cylinders ! im taking it apart now, i hopes there isnt a huge hole in my piston !

88fivepointoh · 08-09-2004, 02:33 PM

Thats Harsh, I am going to bet on a bent valve... well now you have an excuse for the heads.

MiracleMax · 08-10-2004, 05:59 PM

how bout a burnt piston? , is there real bad blowby? Although the backfire does suggest a bad valve.

leathal injection · 08-10-2004, 06:49 PM

i took the head off and the there is a hole in my exhuast valve. the piston looks pretty good. im going to get new heads today. im thinkin about the edel Rpm Performer heads w/2.02 intake valves ? how good are these heads over my gt40-p's ?

88fivepointoh · 08-10-2004, 07:02 PM

pop-ed a hole in there.. damn... edel brocks are good, trickflows, afr, etc.. everyone has there own flavor, I like them both.

08-09-2004, 09:07 AM	#1
leathal injection Registered Member Join Date: Mar 2004 Location: Long Island Posts: 58	Ran 11.53 down the track ! now i hear aloud ticking! i went to the track yesterday, ran 11.53 @120 mph. as soon as i drove around to pick my slip up , noticed my cars ticking pretty loud and hesitating, and when i give alil gas sometimes it sounds like its gotta slight backfire. 1st thing i thought was a bent pushrod, as soon as a got home i checked them out , there all straight! witch really didnt surprise me cause i just reaplaced them 6 months ago (with hardened pushrods) ..... what could it be, collapsed lifter ? bent valve ? any ideas ? ifs it a bent valve, i think im gonna trash my GT40 P's and get new heads... How does the edel RPM performer 2.02 heads, perform against a pair of AFR 185's ?? please help ... Thanks guys. __________________ 1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba

08-09-2004, 10:30 AM	#2
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Sounds like you're barking up the right tree at least. Ticking is probably a lifter, and the running crappy and minor backfire is probably a burned valve, not necessarily bent but could be. Run a compression test, and that'll let you know where the problem is. Good luck! __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

08-09-2004, 11:22 AM	#3
leathal injection Registered Member Join Date: Mar 2004 Location: Long Island Posts: 58	ok , i went and bought a compression tester... i take the #5 spark plug out and its TOTALLY MELTED !!! i ran the compression test on that cylinder anf there NO compression in that cylinder. i thought maybe i bought a busted tester , but it shows compression on other cylinders ! im taking it apart now, i hopes there isnt a huge hole in my piston ! __________________ 1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba

08-10-2004, 06:49 PM	#6
leathal injection Registered Member Join Date: Mar 2004 Location: Long Island Posts: 58	i took the head off and the there is a hole in my exhuast valve. the piston looks pretty good. im going to get new heads today. im thinkin about the edel Rpm Performer heads w/2.02 intake valves ? how good are these heads over my gt40-p's ? __________________ 1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba

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08-09-2004, 02:33 PM	#4
88fivepointoh Registered Member Join Date: Aug 2002 Location: Rochester Posts: 553	Thats Harsh, I am going to bet on a bent valve... well now you have an excuse for the heads.

08-10-2004, 05:59 PM	#5
MiracleMax Registered Member Join Date: Apr 1999 Location: Hayes, Va, USA Posts: 798	how bout a burnt piston? , is there real bad blowby? Although the backfire does suggest a bad valve. __________________ 2002 5M GT (99% stock) 1991 5M LX (30% stock) patiently awaiting my satin silver 07 Mach 1, and don't forget the shaker

08-10-2004, 07:02 PM	#7
88fivepointoh Registered Member Join Date: Aug 2002 Location: Rochester Posts: 553	pop-ed a hole in there.. damn... edel brocks are good, trickflows, afr, etc.. everyone has there own flavor, I like them both.