i have a raping noise at low, steady rpms sounds like its coming from heads,just replaced valve stem seals any one have an idear what this might be


Asked by Jul 02, 2008 at 08:46 PM about the 1987 Chevrolet Camaro Base

Question type: Maintenance & Repair

I just did the valve stem seals on my 305,runs great, but I get a rapping noies when I give it a little gas and keep it steady ,rapping noies seems to becoming from one of the heads, any one have an idear what it might be......

12 Answers


i have a camaro just like yours and i did alot of stuff with my 305 cause i had some problems with it so finally i took it out and put a 355 in in....what do you mean by rapping noise

try setting your timing back a little,re adjust valves.also you may want to use a heaver oil 10 w 40.


I have a friend who has a 305 and his is built up and he is pushing 340 hp his runs strong all the time never seems to have a problem with it.his motor is 3 years old still going strong,when car is sitting in my driveway and i give it a little gas,it sounds fine but when i hold the gas or give it a little more gas it sounds like someone is knocking on the head, something is raping inside the head,even if i put my hand on the head i can feel it.I know if i tightened a valve to tight it would run real crappy,but engine runs great ,could it be the anti knock sensor..its not a ticking sound,


i did set it back a bit but noies is still there,i am using 10/40,would it be better to adjust valves with engine running,thats how we did it in the old days.


i bought this camaro from a teenage kid with a history of beating cars to death ,when i got the car it was'nt running, the vin number says it an iroc but this car looks nothing like an iroc,no body kit,3rd brake light is on the hatch,front noise is that of the bernet...wheels too...


If your not having overheating issues.. you might want to take a closer look at the mufflers, you could have a loose baffle plate causing the noise at low R.P.M.


thank you pressure is low....


brand new flowmasters,,,car hasn't left the driveway yet......


that might be pinging but i would have to hear it for myself. try lucus octane booster and see if that helps


Sounds like you've got a valve adjusted too loose... I'd recommend doing it with the engine off simply because I find it easier and it's the way you have to do it on my car... which needs a valve adjustment every 6,000 miles (ouch) Also make sure you don't have any adjusted too tight or you may end up burning the valve. Hope that helps...


i have adjusted the valves 3 times still have the noise,

Your Answer

Add photo

Related Questions

  • MY 69 Camaro Just turns off! 19 answers

    My car just shuts off! No warning. But only at a low idle.. no warning just shuts off like somebody turn off the key. Ill be siiting at a stop sign, getting ready to go and Bam!! shuts off, pulling ...

    1969 Chevrolet Camaro Coupe


    Maintenance & Repair

  • have a hissing sound in my intake fuel rail, my jeep won't start 2 answers

    I have a 95 3.8 Camaro motor. I have replaced fuel pump, it ran for a week now it won't start and with the key turned on, it's making a hissing sound from the intake. I can't pinpoint exactly where ...

    1995 Chevrolet Camaro Base


    Maintenance & Repair

  • my car is making a ticking noise help 16 answers

    my 1999 camero is making a ticking noise not a knock though i hd an oil change just a few mnths ago its never ran out of water what could it be

    1999 Chevrolet Camaro


    Maintenance & Repair

  • Low oil light 5 answers

    I have a 96 Z28/SS , owned for 3 months now. The low oil light has come on when car is started and stays on for a while, seems to go out after car is warmed up. I've checked oil level and it is alwa...

    1996 Chevrolet Camaro Z28 SS


    Maintenance & Repair

  • Car cranks but wont start, clicking noise coming from dash 2 answers

    hello, had a question. i have a 96 camaro v6 and when i put the key in the ON position i get a clicking noise in the dash. usually when i jump start it this noise will stop then it will start. but t...

    1996 Chevrolet Camaro RS


    Maintenance & Repair


Looking for a Used Camaro in your area?

CarGurus has 32,798 nationwide Camaro listings starting at $1,995.


Search Chevrolet Camaro Questions

Chevrolet Camaro Experts

#1 dandyoun
Reputation 1,720
#2 carGrrl
Reputation 1,160
#3 Tom Demyan
Tom Demyan
Reputation 1,050
View All

Related Models For Sale

Used Ford Mustang
375 Great Deals out of 47,157 listings starting at $1,999
Used Dodge Charger
283 Great Deals out of 27,145 listings starting at $2,250
Used Chevrolet Corvette
101 Great Deals out of 20,410 listings starting at $3,495
Used BMW 3 Series
961 Great Deals out of 33,517 listings starting at $1,000
Used Ford F-150
2,244 Great Deals out of 209,099 listings starting at $1,499
Used Jeep Wrangler
273 Great Deals out of 18,649 listings starting at $2,995
Used Pontiac Firebird
6 Great Deals out of 739 listings starting at $2,500

Used Cars For Sale

2017 Chevrolet Camaro For Sale
20,717 listings starting at $18,061
2016 Chevrolet Camaro For Sale
13 Great Deals out of 1,733 listings starting at $18,800
2015 Chevrolet Camaro For Sale
33 Great Deals out of 2,400 listings starting at $14,889
2014 Chevrolet Camaro For Sale
21 Great Deals out of 1,860 listings starting at $9,980
2013 Chevrolet Camaro For Sale
12 Great Deals out of 1,245 listings starting at $10,800