Time for valve adjustment?
03-11-2002, 09:59 AM
#1
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Time for valve adjustment?
With a lot of help from Rennlist posters I've got my '86 3.2 running a lot smoother.
Previous owner had the valves adjusted at the suggested mileage (75,000). Mileage is now just over 86,000.
I think I drive a lot harder thn he did.
Are there any noticeable symptoms for needing valves adjusted?
Should I have it done soon or wait for the next oil change (90K)?
As always, inputs appreciated.
Previous owner had the valves adjusted at the suggested mileage (75,000). Mileage is now just over 86,000.
I think I drive a lot harder thn he did.
Are there any noticeable symptoms for needing valves adjusted?
Should I have it done soon or wait for the next oil change (90K)?
As always, inputs appreciated.
03-11-2002, 01:06 PM
#2
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Gerry,
Have it done soon. I was doing a valve adjustment for the first time on my '78 SC when I discovered a broken cylinder head stud. There was no sign of trouble but decided to have them checked. I'm glad I found it earlier.
Have it done soon. I was doing a valve adjustment for the first time on my '78 SC when I discovered a broken cylinder head stud. There was no sign of trouble but decided to have them checked. I'm glad I found it earlier.
03-11-2002, 04:18 PM
#3
The rule of thumb I have followed for years with my two 911's is to adjust the valves annually, or 15k miles, which ever comes first. Since I drive each car less than 5k a year, I adjust them annually. It's a little "overkill", but I do my own adjustments (i.e. low costs) and the cars always run very well.
One symptom is valve noise from loose valves. The valve noise could be something else more serious, but loose valves will make noise. On the other hand, tight valves do not make noise. The point here is that noisy valves alone should not be your signal to do an adjustment. Sometimes you can also sense a decrease in performance level with out-of-adjustment valves.
And if all else fails, follow the guidelines in your Owner's Manual.
Bruce
One symptom is valve noise from loose valves. The valve noise could be something else more serious, but loose valves will make noise. On the other hand, tight valves do not make noise. The point here is that noisy valves alone should not be your signal to do an adjustment. Sometimes you can also sense a decrease in performance level with out-of-adjustment valves.
And if all else fails, follow the guidelines in your Owner's Manual.
Bruce
03-11-2002, 11:07 PM
#6
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[quote]Originally posted by JBH:
<strong>I just paid $335 for my C2 Turbo, which I thought was quite reasonable.</strong><hr></blockquote>
Wow, that is reasonable. Is that just labor for a valve adjustment--i.e., doesn't include parts (e.g., 12 spark plugs, oil, filter) and labor for a major service?
<strong>I just paid $335 for my C2 Turbo, which I thought was quite reasonable.</strong><hr></blockquote>
Wow, that is reasonable. Is that just labor for a valve adjustment--i.e., doesn't include parts (e.g., 12 spark plugs, oil, filter) and labor for a major service?
