Ground fault after intake refresh
#16
While we're on the subject of re-building harnesses, does anyone have a trick for easily replacing the hardened, cracked and otherwise "jest fallin' apart" rubber insulating sheaths on the hundreds of spade connectors peppered throughout this engine? I hate to pull the entire harness just to re-insulated these terminations.
"Pardon me your honor, I'm fat"
-- Mystery Alaska
"Pardon me your honor, I'm fat"
-- Mystery Alaska
#17
Nordschleife Master
When I re-insulated mine, I had taken the whole harness out. I had cut new cable to length for the big power lines. This, on retrospect, will make it easier to re-insulate the bundles. What I used for insulation was fiberglass about 2 " wide in a 100' roll from an aircraft supply house. Rated for high thermal protection and mechanical protection. Over this I place a thick silicon tape. Again, a 100' foot roll from the same people. Meticulously, tightly and spirally wound each layer around my newly serviced and fabricated lines. Has been there for three years without a nick. Will be more difficult to tightly wind on if lines are in the car, but should be possible though. I am sorry I didn't keep the name/link to this supplier, but a search will find the material.
#18
I'll probably just pull out the harnesses and re-build them as you did. Doing the injector harnesses might be tricky since I don't know where they go after leaving the engine compartment yet.
Thanks for the tip on the fiberglass wrap,
#19
Nordschleife Master
Sound much better than the factory harness sheath. What I was asking about though were just the rubber covers on the spade terminators themselves. I've thought about clipping off the lugs/spades and installing new ones with new insulating covers and stress relief but it would be tedious doing it in place unless there was a better way (I was thinking something like a slip on replacement). I wonder if heat shrink tube would work?
I'll probably just pull out the harnesses and re-build them as you did. Doing the injector harnesses might be tricky since I don't know where they go after leaving the engine compartment yet.
Thanks for the tip on the fiberglass wrap,
I'll probably just pull out the harnesses and re-build them as you did. Doing the injector harnesses might be tricky since I don't know where they go after leaving the engine compartment yet.
Thanks for the tip on the fiberglass wrap,
#22
Under the Lift
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#23
Rennlist Member
When I re-insulated mine, I had taken the whole harness out. I had cut new cable to length for the big power lines. This, on retrospect, will make it easier to re-insulate the bundles. What I used for insulation was fiberglass about 2 " wide in a 100' roll from an aircraft supply house. Rated for high thermal protection and mechanical protection. Over this I place a thick silicon tape. Again, a 100' foot roll from the same people. Meticulously, tightly and spirally wound each layer around my newly serviced and fabricated lines. Has been there for three years without a nick. Will be more difficult to tightly wind on if lines are in the car, but should be possible though. I am sorry I didn't keep the name/link to this supplier, but a search will find the material.
#24
#25
Hey Bill -
I noticed you're in NorCal, I'm planning to be at the Laguna Seca meet in November, I just re-joined last week in anticipation of getting my car back on the road after 15 years in storage.
If I can get it running again I'll be there, If anyone else is planing on it maybe you can give me some advice on what to do with "Dogbert"? I want to put the car on the track someday but I'll be running stock with the street car while I figure the lay of the landscape. Currently I'm thinking I'll be buying a couple of 16 valve heads...
Regards,
I noticed you're in NorCal, I'm planning to be at the Laguna Seca meet in November, I just re-joined last week in anticipation of getting my car back on the road after 15 years in storage.
If I can get it running again I'll be there, If anyone else is planing on it maybe you can give me some advice on what to do with "Dogbert"? I want to put the car on the track someday but I'll be running stock with the street car while I figure the lay of the landscape. Currently I'm thinking I'll be buying a couple of 16 valve heads...
Regards,
#26
Nordschleife Master
You may want to roll your sleeves up on this one and preventatively and/or reparatively address this.
#27
That is a very 'healthy' sized wire. If that got 'baked' within the harness insulation a fair amount of heat would be generated, probably melting some of the insulation on the smaller wires within the spaghetti bundle.
You may want to roll your sleeves up on this one and preventatively and/or reparatively address this.
You may want to roll your sleeves up on this one and preventatively and/or reparatively address this.
It did get baked, to the point it had to be replaced. What I did was thread new primary wire (from the local auto parts store) through the harness and re-terminate it. That specific wire didn't get baked, it was the wire that got replaced, but it was the only wire I replaced. Since then it's shown those stress cracks you see, I don't think it was the best wire to use.
I agree. It's time (probably past time) to roll up my sleeves and re-build the entire harness.
#28
And we have a winner!
As you guessed, the battery is totally shot. I had this idea it might be OK for awhile if the ground strap was disconnected. It probably would have been had it not been 15 years old and the subject of so many re-charges I can't even count them.
$275 for a new battery, the joy of finding the problem? Priceless.
I may be overly optimistic. I won't get the new battery until tomorrow.
As you guessed, the battery is totally shot. I had this idea it might be OK for awhile if the ground strap was disconnected. It probably would have been had it not been 15 years old and the subject of so many re-charges I can't even count them.
$275 for a new battery, the joy of finding the problem? Priceless.
I may be overly optimistic. I won't get the new battery until tomorrow.
#30
I made a strategically bad move on this one and I'm now paying for it. Honestly, I was so focused on getting the hard parts of an intake refresh finished in time I didn't even think about that d@amned battery!