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Old 11-14-2015, 02:09 AM   #226
Captainfab
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Re: SiX-fo SuBuRbAn

When you wired in the HEI, did you run a new wire to be sure it has a full 12 volts from the ignition switch? The original coil wire in the Suburban wire harness does not provide enough voltage.
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Old 11-14-2015, 02:27 AM   #227
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Re: SiX-fo SuBuRbAn

I wired it to the "ignition switched" post on the fuse block, there are two of these terminals towards the left top... should I try wiring it to something else?
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Old 11-17-2015, 08:10 PM   #228
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Re: SiX-fo SuBuRbAn

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I wired it to the "ignition switched" post on the fuse block, there are two of these terminals towards the left top... should I try wiring it to something else?
I guess it says "ign. unfused"

still trying to fix it without spending lots of $$, and today tried changing the coil out, cursing that I didn't put the engine 1 inch forward, the dist. is super close to the firewall and a ***** to get off!
anyway that did not help, the spark is super weak: with the screw driver in the plug wire to hood hinge test it gives a pathetic little orange spark.
I might run a jumper wire from the battery to the dist. connection to rule out a wiring harness problem?
and I am about ready to "borrow" the cap and wires of one of my running trucks to see if that fixes the problem.
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Old 11-18-2015, 01:54 AM   #229
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Re: SiX-fo SuBuRbAn

That source should be fine. I just didn't know I you knew about having to have a full 12 volts to the distributor. Do you have good grounds to both the engine and body?
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Old 11-18-2015, 06:57 PM   #230
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Re: SiX-fo SuBuRbAn

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That source should be fine. I just didn't know I you knew about having to have a full 12 volts to the distributor. Do you have good grounds to both the engine and body?
that is something I should check, I am pretty sure I hooked those up, but might have missed them....
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Old 11-19-2015, 01:39 PM   #231
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Re: SiX-fo SuBuRbAn

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Jon,

The strap sounds good, once the engine is out, should be able to bend it to fit the cross member. Will try to heat up the strap with my TIG welder, getting it red just before it puddles, then bend it.

Les
Com'on man.. You have to have a torch in that shop somewhere don't you?
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Old 11-20-2015, 12:40 AM   #232
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Re: SiX-fo SuBuRbAn


Double checked, ground straps are there. Pulled cap and wires off a running truck, and put them on, still no start, put a jumper wire from batt terminal directly to the battery, still nothing.
This wouldn't be so frustrating if it never ran, but last summer I fired it up for a few minutes, and the before I discovered the carb trouble I got it to run. Also, after the first carb cleaning I did get it to run for at least a minute.
The only thing I haven't changed is the plugs, so next I will try a new set of plugs-maybe with the gummed up carb and priming and such the plugs have been fouled.
I hope that is it.
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Old 11-20-2015, 01:37 AM   #233
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Re: SiX-fo SuBuRbAn

Try changing the module in the base of the distributor.
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Old 11-20-2015, 09:17 AM   #234
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Re: SiX-fo SuBuRbAn

Just a shot in the dark ..had a jeep that would not fire up ..turned out the brass part in the boot had moved back to far on the coil ...had use a pick to move it back in place so it could get a better spark
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Old 11-20-2015, 05:48 PM   #235
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Re: SiX-fo SuBuRbAn

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Originally Posted by Captainfab View Post
Try changing the module in the base of the distributor.
will do

Quote:
Originally Posted by piratexpress1369a View Post
Just a shot in the dark ..had a jeep that would not fire up ..turned out the brass part in the boot had moved back to far on the coil ...had use a pick to move it back in place so it could get a better spark
good tip, but this is an hei.

got the plugs, haven't put 'em in , but had to laugh at the parts store today.
"I need plugs for a '66 396"
"truck ? "
"sure"
"1/2 or 3/4 ton?"
"1/2"
"2 wheel drive or 4?"
"hmm, lets say 2"
pause....
"they don't show a 396 for a truck"
"Oh yeah, forgot.. make that an impala,66."
"Hmmm, 250?"
"No..... a 396."
"oh OK here they are..."
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Old 12-12-2015, 10:40 PM   #236
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Re: SiX-fo SuBuRbAn

ok I need more info on this project, and did you ever get it to fire up if not let me know I hade an issue with my 57 and it turned out to be and its been a long time agao but I think I shorted out the coil , not sure if that helps but now my brain will have to try to remember what the heck it was I will get back with you.
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Old 12-13-2015, 09:14 PM   #237
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Re: SiX-fo SuBuRbAn

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Originally Posted by 1955 mancave View Post
ok I need more info on this project, and did you ever get it to fire up if not let me know I hade an issue with my 57 and it turned out to be and its been a long time agao but I think I shorted out the coil , not sure if that helps but now my brain will have to try to remember what the heck it was I will get back with you.
it got cold outside so I quit messing with it for a while...

I never did get it to run, started changing the plugs out, and got a few done, then a friend stopped by and we messed with it for about a half hour, we got it to fire a little bit, and adjusted the timing, it was real touchy, a tiny bit advanced, or retarded and it wouldn't fire at all....on a warm day I am going to get the rest of the plugs, and chase the rest of the system if needed.
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Old 07-29-2016, 06:05 PM   #238
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Re: SiX-fo SuBuRbAn

.... well the warm day finally came- yesterday I pushed this 'burb into the garage, installed the rest of the new plugs, threw a battery in it, primed it, and it fired up like there had never been an issue at all!! -go figure

now I can get going on finishing up the sheet metal work.
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Old 02-05-2017, 01:51 PM   #239
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Re: SiX-fo SuBuRbAn

How's the project coming along?
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I once pulled an intake manifold for a cam swap... ended up with a full on drag car that ran in the 11's.
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Old 05-04-2017, 01:37 PM   #240
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Re: SiX-fo SuBuRbAn

Following if the project is still going on
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Old 01-14-2018, 09:49 PM   #241
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Re: SiX-fo SuBuRbAn

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Originally Posted by jonzcustomshop View Post
here is some progress.. rust repair on the lower door pillar, on the rh side I had to make patterns and fabricate the rusted away piece, luckily there was enough left on the left side to use as a pattern.

the inside of the rockers.. they are a little surface rusted , but not too bad, and the patch on the rh floor brace, where it was cut up with the torch.
so glad you included pictures. i will be rebuilding mine soon...
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Old 12-08-2019, 10:29 PM   #242
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Re: SiX-fo SuBuRbAn

I was looking at this thread, and realized I hadn't done anything to this in the last 3 years! I always intend to get to it, and something else always comes up! I'll keep trying....
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Old 12-09-2019, 01:32 AM   #243
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Re: SiX-fo SuBuRbAn

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I was looking at this thread, and realized I hadn't done anything to this in the last 3 years! I always intend to get to it, and something else always comes up! I'll keep trying....
Jon; it is amazing how time flies by!
Ron
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Old 05-06-2020, 11:21 AM   #244
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Re: SiX-fo SuBuRbAn

This has been great to read up on. I got on this forum a while back and have hit it up periodically since with little reading and a few questions. My project has been very slow going since I picked up my grandpas old farm truck in 2013, a 66 GMC K1000. I found your thread while seeking axle swap info and it took me a long time to find it again. I love your burb, especially the early hood, and would kill to find a decent one for my truck. I hope you managed some time to get back to it, see it's been a few months since you posted an update.
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