Hello! Log in or Register   |  Help  |  Donate  |  Buy Shirts See all banner ads | Advertise on TheSamba.com  
TheSamba.com
 
Timing Marks on Stock Pulley
Page: 1, 2, 3, 4, 5, 6, 7, 8, 9  Next
Forum Index -> Beetle - Late Model/Super - 1968-up Share: Facebook Twitter
Reply to topic
Print View
Quick sort: Show newest posts on top | Show oldest posts on top View previous topic :: View next topic  
Author Message
George Evans
Samba Member


Joined: November 18, 2005
Posts: 632
Location: Flowery Branch , Ga
George Evans is offline 

PostPosted: Sat Sep 01, 2007 12:04 pm    Post subject: Timing Marks on Stock Pulley Reply with quote

I seem to get myself confused every time i tune up my vw's a stock 74 & 73. The Crankshaft pulley has two different types of marks. The marks in the forward engine side are deeper "v" shaped notches. The mark on the outer rim of the pulley to the back of the car is a wider shallower mark. I have always assumed the wide mark to be TDC & the "v" mark more a timing mark.

Doe's this sound correct?
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Glenn Premium Member
Mr. 010


Joined: December 25, 2001
Posts: 76760
Location: Sneaking up behind you
Glenn is offline 

PostPosted: Sat Sep 01, 2007 12:07 pm    Post subject: Reply with quote

This should help.

Image may have been reduced in size. Click image to view fullscreen.

_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare
Back to top
View user's profile Send private message Send e-mail Visit poster's website Gallery Classifieds Feedback
keifernet
Samba Search & Rescue


Joined: May 11, 2002
Posts: 19395
Location: Samba Center for Behavioral Science
keifernet is offline 

PostPosted: Sat Sep 01, 2007 12:15 pm    Post subject: Reply with quote

Yep... dimple is TDC...

I have never seen a pulley with all the marks on it like in Glenns pic though... most of the time you either see the notch to the left of the dimple which is 5 ATDC ( orginally a DVDA distrubutor) or a single notch to the right which is 7.5 BTDC ( SVDA) VW did produce at least 5 pullies with different notches in them that I know of... maybe more.

Image may have been reduced in size. Click image to view fullscreen.
Back to top
View user's profile Send private message MSN Messenger Gallery Classifieds Feedback
George Evans
Samba Member


Joined: November 18, 2005
Posts: 632
Location: Flowery Branch , Ga
George Evans is offline 

PostPosted: Sat Sep 01, 2007 12:16 pm    Post subject: Reply with quote

Thanks Glenn, That's as i thought. So in theory if i run the engine up to 3500rpm with stock dissy the Tdc mark should move 28-30 deg. to the left using a strobe?
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Bashr52
Samba Member


Joined: July 16, 2006
Posts: 5666
Location: On an island in VA
Bashr52 is offline 

PostPosted: Sat Sep 01, 2007 12:34 pm    Post subject: Reply with quote

Nope the stock mark is for timing at idle, not max advance.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
George Evans
Samba Member


Joined: November 18, 2005
Posts: 632
Location: Flowery Branch , Ga
George Evans is offline 

PostPosted: Sat Sep 01, 2007 12:43 pm    Post subject: Reply with quote

Yes i understand about the existing notch. If you added a mark 1.8" to the right of TDC or 30 deg should that be the max advance at 3500rpm?
Back to top
View user's profile Send private message Gallery Classifieds Feedback
glutamodo Premium Member
The Android


Joined: July 13, 2004
Posts: 26298
Location: Douglas, WY
glutamodo is offline 

PostPosted: Sat Sep 01, 2007 3:17 pm    Post subject: Reply with quote

keifernet wrote:
Yep... dimple is TDC...
I have never seen a pulley with all the marks on it like in Glenns pic though...


I have, but not from the factory. That image is actually derived from a picture I put together of a pulley I made those marks on myself. ATK/Vege rebuilt motors come with all those marks on them, but the notches aren't as nice as the ones I made. No I made those marks just to illustrate the common timing mark locations in relation to one another.

If you've ever seen the John Muir "Idiot Book" it has a good chart that shows the timing marks as well, I scanned a snippet of that chart before:

Image may have been reduced in size. Click image to view fullscreen.
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
jamesdagg
Samba Member


Joined: August 18, 2007
Posts: 3364
Location: B.C.Canada
jamesdagg is offline 

PostPosted: Sat Oct 06, 2007 2:02 am    Post subject: Reply with quote

Print, cut out and draw marks on your pulley where needed.
Image may have been reduced in size. Click image to view fullscreen.


Image may have been reduced in size. Click image to view fullscreen.


Last edited by jamesdagg on Thu Jan 01, 2009 9:26 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
lewis71bug
Samba Member


Joined: November 01, 2006
Posts: 478
Location: Dayton, Ohio
lewis71bug is offline 

PostPosted: Sat Nov 17, 2007 7:34 pm    Post subject: Reply with quote

This is the pulley (stock) on my engine:

Image may have been reduced in size. Click image to view fullscreen.


It has the three 'v' notches on the rear of the pulley, but no dimple that I can find (that dark spot on the front of the pulley is just a dark spot, not a dimple). Which of the 'v' notches is TDC, or is mine supposed to have dimple between the first and second 'v'?

Wayne
_________________
Wayne
71 Super Beetle (in the states)
72 Super Beetle (european)
73 euro Bay camper (type 1 engine)
Back to top
View user's profile Send private message Gallery Classifieds Feedback
wcfvw69 Premium Member
Samba Purist


Joined: June 10, 2004
Posts: 13382
Location: Arizona
wcfvw69 is offline 

PostPosted: Sat Nov 17, 2007 9:23 pm    Post subject: Reply with quote

lewis71bug wrote:
This is the pulley (stock) on my engine:

Image may have been reduced in size. Click image to view fullscreen.


It has the three 'v' notches on the rear of the pulley, but no dimple that I can find (that dark spot on the front of the pulley is just a dark spot, not a dimple). Which of the 'v' notches is TDC, or is mine supposed to have dimple between the first and second 'v'?

Wayne


It's the V on the far left. It goes 0,7.5 and 10 degrees or left to right o, 7.5 and 10.
The picture of the pulley with the dimple that Glenn posted is not original VW.
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc

Decades of VW and VW parts restoration experience.
The Samba member since 2004.

**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours**


Last edited by wcfvw69 on Wed Jan 09, 2008 9:39 pm; edited 2 times in total
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
elektronikbadger
Samba Member


Joined: January 07, 2008
Posts: 5
Location: Virginia Beach, VA
elektronikbadger is offline 

PostPosted: Tue Jan 08, 2008 7:03 pm    Post subject: Reply with quote

What about those of us who don't have the "dimple"??? Is there a way to tell if we have the proper pulley (other than pulling the dizzy or checking the valves?
Back to top
View user's profile Send private message Classifieds Feedback
glutamodo Premium Member
The Android


Joined: July 13, 2004
Posts: 26298
Location: Douglas, WY
glutamodo is offline 

PostPosted: Tue Jan 08, 2008 11:34 pm    Post subject: Reply with quote

Well, checking the valves won't tell you exact TDC anyway. You'd have to pull a spark plug, put something into the cylinder to touch the cylinder and watch it as goes on either side of TDC (turning the engine over gentlry on either side of TDC that is) to visually see where TDC is.
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
keifernet
Samba Search & Rescue


Joined: May 11, 2002
Posts: 19395
Location: Samba Center for Behavioral Science
keifernet is offline 

PostPosted: Wed Jan 09, 2008 7:14 am    Post subject: Reply with quote

elektronikbadger wrote:
What about those of us who don't have the "dimple"??? Is there a way to tell if we have the proper pulley (b



And pulling the distributor does not tell you anything either...

AFAIK only the 71 and later pulley's ( like in my picture posted earlier in this thread) have the "dimple" Some models were notched 5 ATDC for DVDA and others 7.5 BTDC for SVDA

This has always caused problems for owners or ill informed/non VW mechanics when an 009 or any other distributor besides the correct one was installed and the timing set to the factory marks on the pulley.

If yours has just notches and no dimple it is an earlier ( or possibly aftermarket) pulley and you can use a chart in one of the manuals ( like glutamodo posted part of one above) to find what marks on your pulley mean. BUT you still have to time it for the distributor you are using.
Back to top
View user's profile Send private message MSN Messenger Gallery Classifieds Feedback
elektronikbadger
Samba Member


Joined: January 07, 2008
Posts: 5
Location: Virginia Beach, VA
elektronikbadger is offline 

PostPosted: Thu Jan 10, 2008 5:50 pm    Post subject: Reply with quote

Is there any part numbers on the back of the pulley? Mine has one single mark and a VW logo almost directly below it on the face (I'm guessing it's 7.5 BTDC based on the engine code) but I'd like to be sure. it seems to me that my dizzy drive gear is not in the correct position and I'd like an easy way to find TDC so I can actually check it.

A degree pulley is always an option... but it takes away from the stock look.
Back to top
View user's profile Send private message Classifieds Feedback
glutamodo Premium Member
The Android


Joined: July 13, 2004
Posts: 26298
Location: Douglas, WY
glutamodo is offline 

PostPosted: Thu Jan 10, 2008 6:53 pm    Post subject: Reply with quote

No part numbers on the crank pullies, just that VW stamp usually.
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
Video Bob
Samba Member


Joined: November 03, 2005
Posts: 261
Location: Bishop, GA
Video Bob is offline 

PostPosted: Sat Feb 09, 2008 7:01 am    Post subject: Reply with quote

The dizzy rotor does not have to be in the exact position as shown in most illustrations. A stock dizzy will have a very faint mark or indentation along the top of the dizzy where the cap sits. The rotor button should point to that mark when the #1 cylinder is at TDC.
_________________
Ya can't have too many Vdubs!
1956 Oval
1966 Beetle
1974 Thing
1974 Super Beetle
1976 Westy P22
Back to top
View user's profile Send private message Gallery Classifieds Feedback
BrockGrimes
Samba Member


Joined: September 18, 2006
Posts: 1015
Location: Clovis, NM
BrockGrimes is offline 

PostPosted: Tue May 06, 2008 7:30 pm    Post subject: Reply with quote

I have a '72 super with the single dimple in front and a notch to the left for 5 ATDC.

On the pulley is stamped the VW circle and a big letter D.

What's the D mean?
Does it have a meaning?
_________________
Selling the SB:
http://www.thesamba.com/vw/classifieds/detail.php?id=557335
Back to top
View user's profile Send private message Classifieds Feedback
glutamodo Premium Member
The Android


Joined: July 13, 2004
Posts: 26298
Location: Douglas, WY
glutamodo is offline 

PostPosted: Tue May 06, 2008 8:25 pm    Post subject: Reply with quote

I don't know what the D meant for sure, but it was on more than just one variety of timing-marks pulley.
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
wcfvw69 Premium Member
Samba Purist


Joined: June 10, 2004
Posts: 13382
Location: Arizona
wcfvw69 is offline 

PostPosted: Tue May 06, 2008 9:44 pm    Post subject: Reply with quote

BrockGrimes wrote:
I have a '72 super with the single dimple in front and a notch to the left for 5 ATDC.

On the pulley is stamped the VW circle and a big letter D.

What's the D mean?
Does it have a meaning?


Deutschland?
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc

Decades of VW and VW parts restoration experience.
The Samba member since 2004.

**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours**
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
glutamodo Premium Member
The Android


Joined: July 13, 2004
Posts: 26298
Location: Douglas, WY
glutamodo is offline 

PostPosted: Wed May 07, 2008 2:52 am    Post subject: Reply with quote

Yeah, I was thinking that might be it. Or I wonder if it's a size code they used once they changed the diameter of the pulley early in the 40HP era.
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
Display posts from previous:   
Reply to topic    Forum Index -> Beetle - Late Model/Super - 1968-up All times are Mountain Standard Time/Pacific Daylight Savings Time
Page: 1, 2, 3, 4, 5, 6, 7, 8, 9  Next
Page 1 of 9

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

About | Help! | Advertise | Donate | Premium Membership | Privacy/Terms of Use | Contact Us | Site Map
Copyright © 1996-2023, Everett Barnes. All Rights Reserved.
Not affiliated with or sponsored by Volkswagen of America | Forum powered by phpBB
Links to eBay or other vendor sites may be affiliate links where the site receives compensation.