83 distributor pulse generator
#2
Technical Specialist
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Phil,
Are you asking if you can replace the Bosch CD box? The answer is yes. Perhaps the best alternative is the MSD 6AL, and if you search the archives you'll find a recommendation on which coil(s) work well with it. Permatune is another option, however, they can be quite flakey, and based on others experiences, I wouldn't recommend it.
Are you asking if you can replace the Bosch CD box? The answer is yes. Perhaps the best alternative is the MSD 6AL, and if you search the archives you'll find a recommendation on which coil(s) work well with it. Permatune is another option, however, they can be quite flakey, and based on others experiences, I wouldn't recommend it.
#3
RL Technical Advisor
Phil:
As Bill said, the MSD's are very good units and I'll mention that they need to be used with a matching MSD coil for proper performance.
These components are impedance matched to each other.
IMHO, MSD's are far better than Permatune,...
If you decide to install the MSD, e-mail me directly and I'll send you some wiring instructions.
As Bill said, the MSD's are very good units and I'll mention that they need to be used with a matching MSD coil for proper performance.
These components are impedance matched to each other.
IMHO, MSD's are far better than Permatune,...
If you decide to install the MSD, e-mail me directly and I'll send you some wiring instructions.
#5
Addict
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Phil,
At the risk of inflaming the 911 crowd, this 928er and former 944 Turbo S driver has had good luck with Performance Products, Pelican Parts, VertexAuto, and Tweeks, for non-928 parts [Vee haff our own sources ;-)].
Both www.PerformanceProducts.com and www.PelicanParts.com have the MSD 6AL (Pelican Parts is much cheaper at $248.50).
Good luck!
Scott
At the risk of inflaming the 911 crowd, this 928er and former 944 Turbo S driver has had good luck with Performance Products, Pelican Parts, VertexAuto, and Tweeks, for non-928 parts [Vee haff our own sources ;-)].
Both www.PerformanceProducts.com and www.PelicanParts.com have the MSD 6AL (Pelican Parts is much cheaper at $248.50).
Good luck!
Scott
#6
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Are you talking about the actual pulse generator inside the distributor? If so, I have never heard of a replacement for these, as they are not known for having any problems nor do they require maintenance like points.
What problem are you trying to solve?
Tom
What problem are you trying to solve?
Tom
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#9
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Originally posted by magster
according to Bentley manual distributor pulse generator is not working.
according to Bentley manual distributor pulse generator is not working.
If this is the case, before you make any decisions on having a bad pulse generator, unplug the connector from the distributor body, and check for continuity between the distributor plug and terminals 7 and 31d on the CDI harness. A common failure is the coax trigger cable, the infamous "Green Wire". This is common enough that Porsche redesigned the harness (in 83 I believe) with a connector so the distributor end of the trigger wire can be replaced. Make sure while testing, you wiggle the distributor end of the wire a little, you may find an intermittent problem.
Older cars you will either need to splice the replacement cable into the existing harness, buy a replacement CDI harness (permatune sells one, $pendy), or fabricate a replacement harness yourself.
Hope this helps,
Tom
#11
Dear Tom,
Had the problem and replaced the CD unit and is now working. It seems to me it is definitelt the faulty unit. Now is it possible to REPAIR the old unit as a standby replacement or it is not an easy task that I should not bother?
Thanks!
Eddie
Had the problem and replaced the CD unit and is now working. It seems to me it is definitelt the faulty unit. Now is it possible to REPAIR the old unit as a standby replacement or it is not an easy task that I should not bother?
Thanks!
Eddie
#12
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Rennlist Member
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Bosch CDI units can be rebuilt.
Two places I know of do rebuilds, Zim's in Texas, and Otto's in Venice California.
http://www.allzim.com/
http://www.ottosvenice.com/
Zims is cheaper (by about $100) but they are slower. You send them your bad Bosch CD box and they repair it and return it to you. Otto's usually has rebuilt units in stock, but you still need to send them a Bosh CDI to replace their stock.
I believe Pelican Parts did rebuilds as well, but I don't see it listed in their catalog any more. http://www.pelicanparts.com
If your old one is a Permatune, as far as I know you are out of luck.
Tom
Two places I know of do rebuilds, Zim's in Texas, and Otto's in Venice California.
http://www.allzim.com/
http://www.ottosvenice.com/
Zims is cheaper (by about $100) but they are slower. You send them your bad Bosch CD box and they repair it and return it to you. Otto's usually has rebuilt units in stock, but you still need to send them a Bosh CDI to replace their stock.
I believe Pelican Parts did rebuilds as well, but I don't see it listed in their catalog any more. http://www.pelicanparts.com
If your old one is a Permatune, as far as I know you are out of luck.
Tom
#14
Pelican Parts (& many Rennlist sponsors) still provides rebuilt Bosch CD units.
Use these keywords for your search, "rebuilt cd ignition".
Good Luck
Loren
'88 3.2
Use these keywords for your search, "rebuilt cd ignition".
Good Luck
Loren
'88 3.2
Last edited by Lorenfb; 03-05-2004 at 11:44 AM.
#15
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Join Date: Feb 2004
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Tom,
Continuity exists w/in the distributor wires.
Is it logical to try the distributor pulse generator first , and then the cdi
even though wiring tests turn out O.K.
Thanks
Phil
Continuity exists w/in the distributor wires.
Is it logical to try the distributor pulse generator first , and then the cdi
even though wiring tests turn out O.K.
Thanks
Phil