89 S4 cam gear adjustment

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06 Dec 2010 00:11 #2266 by 928mac
I would like someone who knows to give me the mechanics how to.

On my 89 S4 the cam gear keyway is about 5/16 inch
The key on the cam is about half that so that when I slide the gear on it can move up to 2 1/2 teeth from left to right.

The 3 small machine screws on the rotor bolt through 3/8" slots on the gear to the cam hub.
This means that I can place the gear anywhere within 2 1/2 teeth of where it should be.

What is the normal shop procedure?

all the way counter clock ways?
all the way clock ways?
or in the center?

I know some of you who have done 30 - 100s of these would know

I know enough to catch it and other then me getting a deg. wheel (which I will, for in the future) dose anyone have some advice.

Thanks
Brad

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07 Dec 2010 14:39 #2277 by Mike Frye
Replied by Mike Frye on topic 89 S4 cam gear adjustment
The right answer is to use a cam adjustment tool to locate it with reference to the crankshaft so the cams are timed properly.

If you're replacing your old ones you might be able to see the marks on them if you kept them separate.

Otherwise, I'd get in touch with Ken (Porken at liftbars.com ) and get a set of his 32v'r cam alignment tools. It's the only right way to do it without pulling the cam covers and using the expensive Porsche cam alignment tool.

It's not that difficult to do or an expensive tool to have. No reason to guess at it.

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07 Dec 2010 15:04 #2281 by srshaw3
Replied by srshaw3 on topic 89 S4 cam gear adjustment
I used the PorKen tool to set my cam timing. I was quite happy with it, and recommend it.

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07 Dec 2010 22:36 #2287 by 928mac
Replied by 928mac on topic 89 S4 cam gear adjustment
I asked Roger to send one with the new vented brake rotors and pads

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22 Dec 2010 16:37 #2410 by N2O-928
Replied by N2O-928 on topic 89 S4 cam gear adjustment
The answer you are looking for is:

Place the threaded holes of the star (thing that mounts to the Cam) in the center of the slots on the cam gear.

This will give you the Max +/- adjustment to fine tune the Cam Timing, I like and use the PorKen 32vr tool.

It's easy, ;)

Dave

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22 Dec 2010 20:38 #2417 by 928mac
Replied by 928mac on topic 89 S4 cam gear adjustment
Thanks everyone.
I got the PorKen 32vr tool on the way from Roger and got the step by step how to.

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24 Dec 2010 19:01 #2435 by the flying scotsman
Hey Brad............Merry Christmas.

Did you get your cam timing tool? I have one and used it many times, let me know if you need any help.

BTW I'm to damn old to be called junior by anyone.........how do we change the member level, I've around 928oc for many years.

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24 Dec 2010 22:59 #2441 by 928mac
Replied by 928mac on topic 89 S4 cam gear adjustment

Hey Brad............Merry Christmas.

Did you get your cam timing tool? I have one and used it many times, let me know if you need any help.

BTW I'm to damn old to be called junior by anyone.........how do we change the member level, I've around 928oc for many years.


I think it changes every 100 post or so. I can not remember what we decided as Stan has control over that. ummm you got one post, only a few more to go :)

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25 Dec 2010 07:38 #2445 by the flying scotsman

I think it changes every 100 post or so. I can not remember what we decided as Stan has control over that. ummm you got one post, only a few more to go :)


Fine then I'll just post more and more and more.:p

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25 Dec 2010 08:11 #2448 by srshaw3
Replied by srshaw3 on topic 89 S4 cam gear adjustment
There are a few special titles, but other than that we are using the defaults:
Junior Forum Member 0 minimum posts
Forum Member 30 minimum posts
Senior Forum Member 100 minimum posts

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25 Dec 2010 08:14 #2449 by the flying scotsman
Thx Stan.........I'm working on being +30, more reflective of age and experience :D

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25 Dec 2010 09:14 #2452 by srshaw3
Replied by srshaw3 on topic 89 S4 cam gear adjustment
I did change the way the COmmunity List function works, so that "members" are 928 OC members (not just members of the forum).
forums.928oc.org/vbulletin/memberlist.php

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25 Dec 2010 12:00 #2457 by the flying scotsman
Nice change Mr Pres.

Never been a fan of the use of 'junior' in North America. Its a term typicaly applied to school boys attending private school forced to wear uniforms of shorts and the old school tie.

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