08-18-2023 | #1 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Coil pack swap
Few days ago one of my coils went bad. Thanks Steve for your technical and mental support [emoji106]
I have a couple of GM D545 coils on my shelf and my guts say to swap all 4. What do you think? Keep the working 3 OEM coils or swap them?
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ZR-1 #638/1991 |
08-18-2023 | #2 |
Join Date: Aug 2012
Location: Ellicott City, MD
Posts: 1,709
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Re: Coil pack swap
Swap them all out, you know how old the OEM ones are, if one fails, the others are not far behind. And while you have the plenum off, rebuild the starter, clean the valley and check that the drain hole is open and even drill it out so it is larger.
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Charlie __________ Dredgeguy WAZOO Member 1992 Bright Red/Black ZR1 #246 Dana 4:10 gears Polished LT5 by Haibeck Polished Fikse FM5's with Michelin Pilot Sport 2 Stainless Works headers and cats with Corsa |
08-18-2023 | #3 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Re: Coil pack swap
Thanks, Charlie. What do I need for the starter and who will ship it overseas for me?
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ZR-1 #638/1991 |
08-19-2023 | #4 |
Join Date: Aug 2012
Location: Ellicott City, MD
Posts: 1,709
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Re: Coil pack swap
One of our Wazoo members got the rebuild kit but my understanding there were 3 in the USA and he got another 7 from Japan. I believe there are only 4 or so pieces. What we are doing is getting you the part numbers so you can see if available in Germany, if not then on to plan B. Will get back to you soon.
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Charlie __________ Dredgeguy WAZOO Member 1992 Bright Red/Black ZR1 #246 Dana 4:10 gears Polished LT5 by Haibeck Polished Fikse FM5's with Michelin Pilot Sport 2 Stainless Works headers and cats with Corsa |
08-19-2023 | #5 |
Join Date: Feb 2018
Location: Ellicott City Md
Posts: 45
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Re: Coil pack swap
Matt
As mentioned it is good preventative maintenance to refurbish the starter solenoid while you have the coil pack out. The contacts and plunger in the solenoid corrode/burn with high current during starting. Take the solenoid apart (have seen photos either on this forum or the other) and clean the two contacts and plunger contact face till shiny. If they are badly pitted then they should be replaced. One of our members gathered the information on the assembly as follows: - Nippon Denso Starter Assembly (Made in Japan) 128000-5430 Old number 128000-8281 New number - Plunger - Denso 053660-7140 (difficult to find) - Contacts are readily available since they are used on Toyota and Honda - Gasket - Denso 18052007 If needed you should be able to find the parts through a starter rebuild shop locally.
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dandt67 WAZOO Member 1991 ZR-1 Quasar Blue #1470 2016 Z06/Z07 Long Beach Red Tintcoat |
08-20-2023 | #6 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Re: Coil pack swap
Thanks, very helpful! Let me first pull the starter and check the status quo. Maybe it's not bad at all. It hasn't failed a single time so far and pulls strong.
As far as local starter rebuild shops are concerned... this is Germany. We build crap cars that look shiny but are designed as a huge puzzle of "Believe-me-it-WILL-fail" parts - which are made to be replaced as a unit at the highest possible cost. I assume that rebuilding a starter in my country means melting it and turning it into beer cans. Which isn't a bad thing at all but doesn't make your car run again. So, I might get back at some point and ask for support from overseas
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ZR-1 #638/1991 |
08-20-2023 | #7 |
Join Date: Sep 2012
Location: Westminster, Md.
Posts: 436
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Re: Coil pack swap
Matt,
My son is coming to Augsburg and Munich around the end of November if you need any additional parts. Nelson
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WAZOO MEMBER 1993 #124 Ruby 1994 #??? Red/Black 1995 #061 Black/Red 2012 ZR1 Preproduction |
08-21-2023 | #8 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Re: Coil pack swap
Thanks, Nelson, much appreciated! I'll get back on that if needed!
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ZR-1 #638/1991 |
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