My timing belt job
03-31-2010, 04:49 PM
#31
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Motor mounts are the best cost investment now. It's a messy job, but really helps the ride. Nice looking work.
03-31-2010, 04:58 PM
#32
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Pardon the hijack ... I was fantasizing today about buying another 928, which happens to have had a recent TB job.
So it made me think, could one pull the lower cover off and just switch out the original Porsche tensioner with a PK (and associated parts) and never take off the belt?
So it made me think, could one pull the lower cover off and just switch out the original Porsche tensioner with a PK (and associated parts) and never take off the belt?
03-31-2010, 05:03 PM
#33
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03-31-2010, 05:05 PM
#34
Tom, after you give the a/c some slack you barely have room to remove the lower cover with the pulley still in place but I have done it. The t/b is a cheap insurance at less than $30, why not change it just for the extra piece of mind?
04-03-2010, 07:40 PM
#35
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Thread Starter
Done.
Whooohoooo!!!!
Got everything buttoned back up and fired her up. No problems.
No leaks. There was the expected lifter noise on startup and it did smoke a little more than expected for the first 15 seconds or so, but everything seems to be working.
Took her for a short shakedown drive and temp stayed normal. I did not notice a big change in performance, but she always did feel fast before. If anything maybe just a bit smoother.
Brakes feel great. The new rotors have eliminated the pulsing when hot.
So, now it is time for a more extended drive to really have fun again.
Thanks for everyones input.
Whooohoooo!!!!
Got everything buttoned back up and fired her up. No problems.
No leaks. There was the expected lifter noise on startup and it did smoke a little more than expected for the first 15 seconds or so, but everything seems to be working.
Took her for a short shakedown drive and temp stayed normal. I did not notice a big change in performance, but she always did feel fast before. If anything maybe just a bit smoother.
Brakes feel great. The new rotors have eliminated the pulsing when hot.
So, now it is time for a more extended drive to really have fun again.
Thanks for everyones input.
01-27-2019, 06:39 AM
#37
Rennlist Member
Nice job!
A new belt will stretch to create around 2° retard on the 1-4 side (<1 on the 5-8), about the same as a cold to hot engine. You should verify your settings after 1000 miles or so. With a 1K+ mile belt, add ~2° retard to the 1-4 side when cold, or set both sides the same when the engine is hot. With a new belt, set both sides the same, cold.
A new belt will stretch to create around 2° retard on the 1-4 side (<1 on the 5-8), about the same as a cold to hot engine. You should verify your settings after 1000 miles or so. With a 1K+ mile belt, add ~2° retard to the 1-4 side when cold, or set both sides the same when the engine is hot. With a new belt, set both sides the same, cold.
I will check again when the starter will be back on.
Raphaël
01-27-2019, 07:29 AM
#38
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Just make a note of whatever timing values you set today and you should find that the value on the 1/4 bank will retard by about 2 degrees from such position after the 1000 mile settle in period.*
01-27-2019, 03:08 PM
#39
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Thank you for your feedback Fred. I will check after starting the car and then after 1000/1500km. I will adjust if necessary at that time.
Raphaël
Raphaël
