North American Turbocoupe Organization



valve ticking
Mark'87TC Offline
Member
#1
my car has develloped a valve tick, or at least im pretty sure thats what it is. there is no drop off in performance. so my question is. is there any harmless valve ticking or is this just prelude to what could later be a larger problem. one of my friends has a car that has had a valve tick for 50,000 miles with no problems.
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Pete D Offline
Administrator
#2
Kind of depends on what the actual cause is. might be a lifter that isn't pumping up all the way. Cleaning it may help, may not. A set of lifter's is relatively cheap and can be changed with the head in the car. Could possible be a broken valve spring. You can take a vacuum reading at idle and see what the gauge needle does. Or it may be that a cam lobe is wearing and th elifter can no longer compensate for the increased clearnances. If the lobe is worn, the follower is also wearing. It will get worse and when it's worn through the surface hardening it will wear real quick, and all those particles will end up in the oil pan and pump.

There are top end oils to help sticky lifters. you could try that and if the ticking doesn't go away, it might pay to pull the VC and check thing out visually.
Pete Dunham


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88TCSEYMORE Offline
Member
#3
I agree with what Pete has suggested.I would play it safe and pull the valve cover and check the cam for any signs of wear.
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Jeff K Offline
Administrator
#4
Are you sure it is cominf from the valve train? Does it get any louder while accelerating? Louder hot or cold motor? Reason I am asking is that an exhaust leak at the ex. man. - head surface can sound a lot like a ticking valve.

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 21 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 02 Taurus Vulcan(wifes car)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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TCorBUST Offline
Member
#5
Are you sure it's not just a loud injector? Mine are really loud at certain times.

I usually reach down and touch them with my finger to see if the sound matches the vibration.

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'88 TC 5sp, K&N cone, t3.60/.48, ported head, Felpro 1055, Walbro 255 hi pres.
'88 TC 5sp, K&N cone, t3.60/.63, ported head, Felpro 1035, Walbro 255 hi pres., Kirban FPR., 3g Alternator
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Mark'87TC Offline
Member
#6
it gets louder with acceleration, it could maybe be an exst leak, my car does surge a tiny bit, ive had that problem b4 but the surging was much more extreme, the ticking sounded more like a put put put, and i smelt exhaust.

if i dumped a can of sea foam in with the oil would that might help?
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Qwertys Offline
Senior Member
#7
I get a "Put" "Put" sound also, and my boost maxes out at 6-7 psi so it was determined its an exaust gasket. so the best way to know that is: does it get louder when you accelerate, is there a strong smell of exaust. also have you noticed a loss of boost.
'85 TC BPV and Ford FMIC
'88 TC Kirban AFPR, Autometer Boost, FP and A/R Gauge, 8.8 to 4.10 rear, Walboro 255lph Fuel pump, Garrett GT3071R T3/T4 Dual Ball bearing Turbo, Custom AWIC.
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Mark'87TC Offline
Member
#8
my boost maxes at 16 psi, and it still pulls strong (tiny bit of surge). that tiny bit of surge has allways been there a little bit. I'm really sure its not an exhst. leak, ive had that problem b4 and the car ran like sh1t becuase of it.
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Huey866 Offline
Posting Freak
#9
Mine developed after the timing jumped on me last summer. I might have broken a spring or bent the lip on the valve or something like that but the car runs absolutly perfect from a mechanical stand point, electrical is skechy at best.

Huey

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87 Turbo coupe, 5spd, full factory options, custom 3 inch exhaust
87 TurboCoupe - silver, 137k, 5-speed, 3.73 w/ superior axles, Maximum Motorsports suspension, 03 Cobra Brakes, 93 GT vacuum assist, Griggs Subframe connectors, RR cam, Essy Adj. Cam Gear, Boblog, Bob Elbow, .63 T-3, ARP headstuds, Stinger 3in Exhaust, Magnaflow Muffler, AEM gauges, Tweecer RT, Godspeed Omega 18x9
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