 2.0 TPS core |
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| bd1308 |
 Feb 28 2007, 07:12 PM
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#1
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Sir Post-a-lot  Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501  |
I'm going to re-etch many 2.0 TPS's and need a core.
b |
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Replies(1 - 11)
| bd1308 |
Feb 28 2007, 09:08 PM
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#2
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
Just to clarify, this is a CORE, one that is broken but still visible so I can trace the etches for me to start prototyping these boards.
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| TJB/914 |
Feb 28 2007, 09:40 PM
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#3
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Mid-Engn. Group: Members Posts: 4,330 Joined: 24-February 03 From: Plymouth & Petoskey, MI Member No.: 346 Region Association: Upper MidWest 
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QUOTE(bd1308 @ Feb 28 2007, 07:08 PM)  Just to clarify, this is a CORE, one that is broken but still visible so I can trace the etches for me to start prototyping these boards. bd1308 So I understand?? Your going to do what to the 2.0 TPS Throttle Positioning switch? A picture of a few spares I have (inside pic) if needed, trade or ?? T Attached thumbnail(s) 
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| bd1308 |
Mar 1 2007, 09:22 AM
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#4
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
That little track there wears out, right?
**ONLY** reason they need to be replaced. I have L-Jet now (very soon to be megasquirt) but I wanna help out by making mew boards from scratch. Design a board, etch it and make the lines how they're supposed to be. it looks riveted in doesnt it? |
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| sean_v8_914 |
Mar 1 2007, 10:39 AM
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#5
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Chingon 601 Group: Members Posts: 4,011 Joined: 1-February 05 From: San Diego Member No.: 3,541 |
I wonder if etched proto boards will hold up to teh constant wiper arm abrasion. we had a hard time doing any re-work on etched boards
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| TJB/914 |
Mar 1 2007, 11:39 AM
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#6
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Mid-Engn. Group: Members Posts: 4,330 Joined: 24-February 03 From: Plymouth & Petoskey, MI Member No.: 346 Region Association: Upper MidWest
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QUOTE(Thomas J Bliznik @ Feb 28 2007, 07:40 PM) QUOTE(bd1308 @ Feb 28 2007, 07:08 PM) Just to clarify, this is a CORE, one that is broken but still visible so I can trace the etches for me to start prototyping these boards. bd1308 So I understand?? Your going to do what to the 2.0 TPS Throttle Positioning switch? A picture of a few spares I have (inside pic) if needed, trade or ?? T Here's the back side of the TPS. I'll have to dig it out & investigate, looks like it's riveted. T Attached image(s) 
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| bd1308 |
Mar 1 2007, 02:43 PM
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#7
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
if the original is NLA, whats the alternative?
if the proto board work well, then I could get nice ones made. |
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| dr914@autoatlanta.com |
Mar 1 2007, 06:32 PM
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#8
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914 Guru Group: Members Posts: 7,872 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
QUOTE(bd1308 @ Mar 1 2007, 12:43 PM) if the original is NLA, whats the alternative? if the proto board work well, then I could get nice ones made. i would be a buyer! maybe a nice easy do it yourself kit with rivets as well and instructions. Send some glossies and we will put it in the upcoming catalog! |
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| bd1308 |
Mar 1 2007, 06:36 PM
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#9
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
well i need a core first, i sold my new tps a couple years ago
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| rick 918-S |
Mar 1 2007, 06:46 PM
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#10
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Hey nice rack! -Celette Group: Members Posts: 20,466 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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George, Send Britt a core. He's a good kid. He'll treat you right.
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| Katmanken |
Mar 1 2007, 06:51 PM
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#11
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
Not sure if this will work for this application, but one of the Vanagon tricks is to move the board slightly to expose an unworn area to wipe on.
This is frequently done if you have the Vanagon D-Jet version of the L-jet, and might work for the 1.8 914 L-jet guys too I did it and it worked great for the Vanagon, but I can't tell what wipes what in the pic. Ken |
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| bd1308 |
Mar 1 2007, 08:08 PM
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#12
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
The 1.8 L-jet uses a two position sensor, only contacts that close are one at WOT and one for IDLE.
Completly different than D-Jet ones. The trick you're referring to is teh L-Jet wiper trick I believe. That works very well, but the issue here is the gold traces actually smearing over several tracks. Apparently a pencil eraser will remove **SOME** of the traces of gold particles making random contact. That's why one gets the bucking at part throttle, the wiper is on one section, and the gold particles make intermittent contact with the other track next to it. I think its an alternating thing--ABABABABABABABABAB for 20 positions. |
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