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ignition rotor replacement - bosch vs. facet

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Old 08-23-2011, 05:10 PM
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josh.vince
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Default ignition rotor replacement - bosch vs. facet

Hey all... a few questions here if you don't mind helping out a 944 newbie...

1. Any downside to using the facet rotor vs. the OEM bosch?
2. The facet doesn't come with the shaft adapter, which is where it appears the set screw is. I'm guessing this part can be reused? If so, any pitfalls to watch for?

Thanks all in advance!
Josh
Old 08-23-2011, 05:47 PM
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MAGK944
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Get the oem Bosch or, one day, you will be driving in the middle of nowhere and your rotor will shatter leaving you stranded. Ask me how I know
Old 08-23-2011, 05:52 PM
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Techno Duck
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I agree, i have tried the cheaper rotors (dont remember the brand though) and i can say for certain they do not last as long as the Bosch rotors. My 951 was misfiring like crazy after only 5k miles or so.. have not had any problems since replacing it with a Bosch.
Old 08-23-2011, 08:00 PM
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John_AZ
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Originally Posted by josh.vince
Hey all... a few questions here if you don't mind helping out a 944 newbie...

1. Any downside to using the facet rotor vs. the OEM bosch?
2. The facet doesn't come with the shaft adapter, which is where it appears the set screw is. I'm guessing this part can be reused? If so, any pitfalls to watch for?

Thanks all in advance!
Josh
Pitfalls??

The usual pit fall is the rotor set screw not installed properly and falls out.

The second is that the distributer cap retaining springs are weak and the cap slides all around on the cam housing. BTW-there is a gasket behind the distributer cap that ages. Get the little cam gear black plug that goes in the quarter size hole also

How old are the wires? Do they spark and arc in the dark? Is the resistance of the wires and terminal ends up to spec?

GL
John
Old 08-24-2011, 04:56 AM
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MM951
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My experience with the cheap rotors is similar to TechnoDucks. I even had a rotor melt once (on the way to Vans Dyno day) and leave me stranded.
Old 08-24-2011, 02:09 PM
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josh.vince
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Originally Posted by John_AZ
Pitfalls??

The usual pit fall is the rotor set screw not installed properly and falls out.

The second is that the distributer cap retaining springs are weak and the cap slides all around on the cam housing. BTW-there is a gasket behind the distributer cap that ages. Get the little cam gear black plug that goes in the quarter size hole also

How old are the wires? Do they spark and arc in the dark? Is the resistance of the wires and terminal ends up to spec?

GL
John

Ok - I'm gonna go with the bosch rotor. I just noticed that it doesn't come with the shaft adapter either. I'm guessing the old rotor detaches from that and the shaft adapter can be reused?

Also - when you say "little cam gear black plug"... got a part # or pic?
Old 08-24-2011, 04:57 PM
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John_AZ
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Canshaft bolt plug--goes in the hole where the timing mark is.

http://www.pelicanparts.com/cgi-bin/...2C%20%39%36%38

John



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