 BOSCH Distributor Part Numbers, any experts out there?? |
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| malcolm2 |
 Aug 24 2019, 11:37 AM
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#1
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Advanced Member  Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States 
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what is the difference in mine vs a loaner..
JFU4 vs JFUD4 bosch 0 231 176 048 vs 0 231 181 009 VW 021 90-5 205 A-B vs 022 905 205 AA Mine is from a 75 1.8. Came with the car, no idea if it is right or not. Not sure about the vs one. both have vacuum advance and electronic modules... mine is hot spark vs Petronics. I got a loaner to try cause my idle has been erratic and my retard vacuum is broken... hose pulled and plugged did not good. Want to install the loaner, but it IS DIFFERENT. question is how different? or maybe a better question is, will it work in my L-Jet 1911? |
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Replies(1 - 9)
| dr914@autoatlanta.com |
Aug 24 2019, 12:06 PM
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#2
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914 Guru Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
will for the most part be interchangeable. The AA was the earlier version 1.8 with vacuum advance retard, the ab was the later one with vacuum retard only
As to the specifics, the aa probably had a different advance curve than the ab, and actually wore a different rev limiting rotor than the ab. Subtile changes for emissions QUOTE(malcolm2 @ Aug 24 2019, 10:37 AM)  what is the difference in mine vs a loaner.. JFU4 vs JFUD4 bosch 0 231 176 048 vs 0 231 181 009 VW 021 90-5 205 A-B vs 022 905 205 AA Mine is from a 75 1.8. Came with the car, no idea if it is right or not. Not sure about the vs one. both have vacuum advance and electronic modules... mine is hot spark vs Petronics. I got a loaner to try cause my idle has been erratic and my retard vacuum is broken... hose pulled and plugged did not good. Want to install the loan, but it IS DIFFERENT. question is how different? or maybe a better question is, will it work in my L-Jet 1911? |
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| JFJ914 |
Aug 24 2019, 12:40 PM
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#3
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States 
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Doc's right. If we could go down to the corner store and buy the correct distributor we would. But we can't, so we use what we have. It usually works. My '74 1.8 came with a 1.7 D-Jet dist along with a 75-76 2.0 D-Jet Fuel injection system. Runs fine.
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| malcolm2 |
Aug 24 2019, 02:40 PM
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#4
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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QUOTE(JFJ914 @ Aug 24 2019, 01:40 PM) Doc's right. If we could go down to the corner store and buy the correct distributor we would. But we can't, so we use what we have. It usually works. My '74 1.8 came with a 1.7 D-Jet dist along with a 75-76 2.0 D-Jet Fuel injection system. Runs fine. So, as i figured. “put it in, see what happens.”? |
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| JFJ914 |
Aug 24 2019, 03:01 PM
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#5
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States
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QUOTE(malcolm2 @ Aug 24 2019, 04:40 PM) QUOTE(JFJ914 @ Aug 24 2019, 01:40 PM) Doc's right. If we could go down to the corner store and buy the correct distributor we would. But we can't, so we use what we have. It usually works. My '74 1.8 came with a 1.7 D-Jet dist along with a 75-76 2.0 D-Jet Fuel injection system. Runs fine. So, as i figured. “put it in, see what happens.”? Absolutely! It's time to come to the dark side. |
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| malcolm2 |
Aug 24 2019, 06:02 PM
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#6
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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Gonna lube it up with my sili kroil and let it sit overnight. Install, timing, and test drive on Sunday.
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| malcolm2 |
Aug 24 2019, 06:44 PM
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#7
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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So if i want to lube this loaner, how do i get the plates out?
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| 914_7T3 |
Aug 25 2019, 01:59 PM
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#8
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Please forgive me, I'm new to all of this! Group: Members Posts: 1,875 Joined: 3-April 17 From: Los Angeles, CA Member No.: 20,991 Region Association: Southern California
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Below is a link to a comprehensive list of part numbers and compatibility for your reference.
(IMG:style_emoticons/default/beerchug.gif) https://members.rennlist.com/pbanders/DJetParts.htm |
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| malcolm2 |
Aug 25 2019, 07:15 PM
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#9
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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Good stuff but i am dealing with 1.8 L-Jet stuff. Anders is the D-Jet master.
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| 914_7T3 |
Aug 25 2019, 09:46 PM
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#10
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Please forgive me, I'm new to all of this! Group: Members Posts: 1,875 Joined: 3-April 17 From: Los Angeles, CA Member No.: 20,991 Region Association: Southern California
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QUOTE(malcolm2 @ Aug 25 2019, 06:15 PM) Good stuff but i am dealing with 1.8 L-Jet stuff. Anders is the D-Jet master. Missed that part............................ (IMG:style_emoticons/default/confused24.gif) |
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