|
|
|
|
| Author |
|
|
Registered
Join Date: Oct 2002
Posts: 31
|
Problem SC Distributor drive gear on the crank
We put together a new 9.8 :1 Euro SC rebuild. The machine shop apparently messed up the distributor drive gear and replaced it with what looks like a new Porsche part. It simi-destroyed itself in 2 hours of running along with breaking 3 rotors. It appears that the engagement depth between the distributor gear and brass crank gear is to deep. We tore it all down last night and found the crank gear to be 59.5mm od. A measured known good working one showed 58mm od. Any ideas what is going on here?
Bryan |
||
02-28-2007, 03:23 AM
|
|
|
Registered
Join Date: Jun 2003
Location: Camarillo, Ca.
Posts: 2,418
|
If that distributor is a clockwise rotating unit, they used a 3.2 driven gear which is slightly larger and will definitely damage the drive gear. If it is a counter clockwise unit I have no answer for you. That sucks..
__________________
Aaron.  F.S. 1965 Solex engine w carbs/cleanerBurnham Performance https://www.instagram.com/burnhamperformance/ |
||
|
02-28-2007, 05:13 AM
|
|
|
Registered
Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
Posts: 1,580
|
HI will this help??
  regards mike
__________________
Regards mike 1983 911 SC sport, 1982 mini city |
||
|
02-28-2007, 06:11 AM
|
|
|
Registered
Join Date: Oct 2002
Posts: 31
|
It is a counter clockwise Euro SC.
Mike, I think you have the solution. Thank you. Bryan |
||
|
02-28-2007, 06:27 AM
|
|
|
Registered
Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
Posts: 1,580
|
HI not prob' , any more info you require give me a shout and I will try to find it for you . good luck.
regards mike
__________________
Regards mike 1983 911 SC sport, 1982 mini city |
||
|
02-28-2007, 06:46 AM
|
|
|
Registered
Join Date: Jun 2003
Location: Camarillo, Ca.
Posts: 2,418
|
I looked through a bunch of drive gears and did find a different height SC gear. Pretty rare bird on this side of the pond.
__________________
Aaron. F.S. 1965 Solex engine w carbs/cleanerBurnham Performance https://www.instagram.com/burnhamperformance/ |
||
|
02-28-2007, 05:06 PM
|
|
|
|
Registered
|
I believe Parts Heaven in Hayward, CA has these.
alex
__________________
Its easier asking dumb questions than fixing dumb mistakes 1974 Porsche 911 Coupe, RSR Project 1976 Porsche 911 Targa, Black 1986 Porsche 911 Carrera, Black 2006 Porsche Cayenne S, Black |
||
|
03-05-2007, 11:56 PM
|
|
