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10-30-2018, 12:37 PM
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#1 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Tbi, again!
Is this a normal thing to have some sort of liquid copper on the distributor under the icm plate? Are pickup coils in these tbi distributors supposed to look so rusty...the plastic prong was broken of the tab that plugs into the icm from the pick up coil. The wires were crossed, the green was connected where the white should've been I know this because of a YouTube video.
New parts this year: Belt Plugs Wires Alternator Battery Fuel pumps X3 Coil Fuel hoses Fuel lines cleaned Still only starts with starter fluid...runs a second then cuts cut. Info 1990 5.7 tbi suburban engine/trans in a 1991 suburban lol Does anyone sell a new stock tbi wiring harness? As always help is sincerely appreciated!
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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10-30-2018, 12:40 PM
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#2 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: Tbi, again!
Trying to post photos but this site is giving me issues.
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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10-30-2018, 12:55 PM
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#3 |
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Registered User
Join Date: Nov 2015
Location: Smethport, PA
Posts: 1,213
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Re: Tbi, again!
This was my first thought, but i'm sure there are other sources.
https://howellefi.com/product-catego...-tbi-products/
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85 K30 crew cab dually - Project http://67-72chevytrucks.com/vboard/s...d.php?t=694939 87 Wrangler Rock Crawler - Reason for the project http://www.wranglerforum.com/f330/da...ld-122601.html 04 1500 crew cab http://67-72chevytrucks.com/vboard/s...d.php?t=786514 |
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10-31-2018, 04:41 AM
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#4 |
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Registered User
Join Date: Sep 2002
Location: Liberty, Mississippi
Posts: 672
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Re: Tbi, again!
If you can post a picture (or send to virgilroberts (at) hotmail.com) of the plug, I may be able help as I have 2 tbi harnesses that I use for the connectors
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11-05-2018, 07:54 AM
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#5 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: Tbi, again!
The wiring I'm talking about is inside the distributor, the pickup coil wire connection that goes into the icm. The wires were crossed.
__________________
Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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11-05-2018, 09:18 AM
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#6 |
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State of Confusion!
  
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 47,225
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Re: Tbi, again!
I do not think I have ever seen the inside of a dist look so rusty unless it has been sitting in a junkyard.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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11-05-2018, 07:26 PM
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#7 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: Tbi, again!
On the plate the icm sits on isn't rust it's copper paste that was under the icm.lol
__________________
Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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11-05-2018, 07:55 PM
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#8 |
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Registered User
Join Date: Sep 2018
Location: Reno
Posts: 58
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Re: Tbi, again!
That distributor looks like its toast. The pickup is really nasty and is that corrosion on the terminals of the ignition module? The stuff under the ignition module looks like it may be anti seize. I think I'd start with a new distributor and ignition module. The ignition module controls the fuel pump and ignition system, and the pickup tells it when to do that. Usually when we get them in the shop like that I always recommend a new pickup coil and ignition module to start with (usually cheaper to just get a distributor assembly), as they can screw with multiple systems.
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11-05-2018, 10:20 PM
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#9 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
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Re: Tbi, again!
Looks like someone used some kind of hot rod copper CPU grease as heatsink paste. Copper is conductive so if it gets in the wrong place it'll screw things up. I'd wipe it off and replace it with regular white Zinc-Oxide heat transfer paste. A 20oz tub of MG-Chemicals 860-60G is a lifetime supply.
The pickup coil generates a low level AC signal so polarity is not an issue. That's why it's not keyed. Plug it in any direction you want. I'd clean it up and check the output of the pickup coil with an oscilloscope. If you get a replacement be careful that it isn't one of the Chinese knockoffs that don't work.
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And please let us know if and how your repairs were successful. Last edited by hatzie; 11-05-2018 at 10:27 PM. |
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