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2Fast
Joined: 09 Dec 2007
Posts: 459
Location: Klamath Falls, OR
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 Posted: Sun Oct 19, 2008 2:54 am Post subject: Why is my engine "ticking"? (Video included) |
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Well now that my car runs, I want to get it in near perfect running codition. Well...my engine is making a ticking sound that is driving me crazy! I think its a valve or lifter or something of those sorts. But I would like a second opinion or two. Heres a video with my engine clicking, it always does this when it runs...http://www.youtube.com/watch?v=I4L4g1DI4s0 Any help would be much appreciated 
*edit(s) for title*
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=====>Alex<=====
1979 Porsche 924 NA 5spd
1979 Parts Porshce 924 NA 5spd
Last edited by 2Fast on Mon Oct 20, 2008 4:13 am; edited 2 times in total |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Sun Oct 19, 2008 2:56 am Post subject: |
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sounds like tappets.
did you lift the valvecover yet? Have you even checked the valve clearance?
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment  |
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Nobbi
Joined: 24 Aug 2006
Posts: 1396
Location: Germany
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| Posted: Sun Oct 19, 2008 4:26 am Post subject: |
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2 Fast,
open your valve cover and check for any loose objects, like a broken off oil feed line or elbow.
Nobbi
_________________
NA 924 - april/1977- 4-speed-audi gearbox.
500.000 km with fun.....and new toy:Porsche 944 S2 Cabriolet.Other car Daimler c-class cabby,brandnew..Plus : DEUTZ 4005 tractor Built 1967 |
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2Fast
Joined: 09 Dec 2007
Posts: 459
Location: Klamath Falls, OR
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| Posted: Mon Oct 20, 2008 4:08 am Post subject: |
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Well I took some pictures today, and I really don't see anything out of place. The only thing that looks like it could be a problem is the oil feed. Tell me what you guys think...
_________________
=====>Alex<=====
1979 Porsche 924 NA 5spd
1979 Parts Porshce 924 NA 5spd |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Mon Oct 20, 2008 4:12 am Post subject: |
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While you have the cover off, adjust the valves. Then check the exhaust manifold and header pipe for leaks.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.
Last edited by Paul on Mon Oct 20, 2008 4:21 am; edited 1 time in total |
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2Fast
Joined: 09 Dec 2007
Posts: 459
Location: Klamath Falls, OR
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| Posted: Mon Oct 20, 2008 4:18 am Post subject: |
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| Paul wrote: | | While you have the cover off, adjust the valves. Then check the exhaust manifold and heater pipe for leaks. |
What does it take to adjust the valves??? I'm checking haynes right now, but i'm not seeing anything obvious.
_________________
=====>Alex<=====
1979 Porsche 924 NA 5spd
1979 Parts Porshce 924 NA 5spd |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Mon Oct 20, 2008 4:28 am Post subject: |
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Haynes covers it very well.
The easiest way to adjust valves is to put the car in high gear (ignition off), then push it until a lobe is pointing straight up. Determine if it is an intake or exhaust valve by looking to see if the valve lines up with an intake or exhaust runner, then adjust it.
If you cannot get the feeler gauge to fit, try smaller ones until you determine what the existing clearance is so that you know how many full turns you need to turn the adjusting screw.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Mon Oct 20, 2008 4:34 am Post subject: |
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BTW that cam is covered with oil correct?
Also how old is the oil? How much fuel is in it?
Might be a good time to change it and take a look for metal.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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2Fast
Joined: 09 Dec 2007
Posts: 459
Location: Klamath Falls, OR
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| Posted: Mon Oct 20, 2008 4:36 am Post subject: |
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| Paul wrote: | BTW that cam is covered with oil correct?
Also how old is the oil? How much fuel is in it?
Might be a good time to change it and take a look for metal. |
Ya the cam is covered in oil, I changed it like last decemberish so it should be fine I think. When I drained it, i didn't find really any metal in there, but there was a LOT of gas in the oil. Enough to upset me a little.
_________________
=====>Alex<=====
1979 Porsche 924 NA 5spd
1979 Parts Porshce 924 NA 5spd |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Mon Oct 20, 2008 4:38 am Post subject: |
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So is it full of fuel again? How's the oil pressure?
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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2Fast
Joined: 09 Dec 2007
Posts: 459
Location: Klamath Falls, OR
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| Posted: Mon Oct 20, 2008 4:43 am Post subject: |
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| Paul wrote: | | So is it full of fuel again? How's the oil pressure? |
I'm not sure how much fuel is in there, but I catch a slight sent of gas in the oil. I don't think it is as bad as it was before. I'm not sure about my oil pressure, the gauge is really jumpy, so i don't trust it to well...but i would say it reads between 6-8 kp/cm3. Once i did see it drop down to
4...but i think thats the lowest.
_________________
=====>Alex<=====
1979 Porsche 924 NA 5spd
1979 Parts Porshce 924 NA 5spd |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Mon Oct 20, 2008 6:12 am Post subject: |
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| Paul wrote: | Haynes covers it very well.
The easiest way to adjust valves is to put the car in high gear (ignition off), then push it until a lobe is pointing straight up. Determine if it is an intake or exhaust valve by looking to see if the valve lines up with an intake or exhaust runner, then adjust it.
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Paul...is that really the easiest way?
I just put it in neutral and fit a wrench on the crankshaft bolt.
Or don't you have metric tools? I can understand that...I've got not one non-metric tool...
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment |
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2Fast
Joined: 09 Dec 2007
Posts: 459
Location: Klamath Falls, OR
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| Posted: Mon Oct 20, 2008 6:56 am Post subject: |
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How exactly do I adjust the valves, i'm looking for a screw like object right? (sorry i'm asking so many questions, just i'm really out of my element here)
_________________
=====>Alex<=====
1979 Porsche 924 NA 5spd
1979 Parts Porshce 924 NA 5spd |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Mon Oct 20, 2008 7:09 am Post subject: |
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in the tappet are 2 holes... and in there a wedgelike screw is placed. Only one of the ends can have a 3mm allen key inserted... just try to get it in, if you cant, you twist the tappet 180degrees.
then you can turn the allen key and make a full rotation for one 'step'...
I believe it is 0.5mm per turn, but could be there are different screws which adjust more.
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Mon Oct 20, 2008 7:25 am Post subject: |
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| Martijnus wrote: | | Paul wrote: | Haynes covers it very well.
The easiest way to adjust valves is to put the car in high gear (ignition off), then push it until a lobe is pointing straight up. Determine if it is an intake or exhaust valve by looking to see if the valve lines up with an intake or exhaust runner, then adjust it.
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Paul...is that really the easiest way?
I just put it in neutral and fit a wrench on the crankshaft bolt.
Or don't you have metric tools? I can understand that...I've got not one non-metric tool... |
After adjusting valves in these cars for 30 years, yes. My way is very fast and since the car is in high gear, it is very easy to turn the motor.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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