Author Topic: Removing emissions  (Read 9848 times)

Offline 86 C-10 305 Guy

  • Newbie
  • Posts: 15
  • Newbie
Re: Removing emissions
« Reply #15 on: May 27, 2020, 06:00:52 PM »
Looks like the smoke in the tail pipe stopped but I do see some bubbling in the radiator. And some steam coming form the radiator cap area after I turn the truck off. Is it a blown head gasket? If anyone in the Fort Belvoir area would like to come help me out I’d gladly repay you with good food and beer hahaha


Sent from my iPhone using Tapatalk

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 18980
Re: Removing emissions
« Reply #16 on: May 28, 2020, 08:36:48 AM »
Get a block tester kit
,                           ___ 
                         /  _ _ _\_
              ⌠¯¯¯¯¯'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Mike81K10

  • Site Supporters
  • Junior Member
  • ******
  • Posts: 878
Re: Removing emissions
« Reply #17 on: May 28, 2020, 12:01:44 PM »
Check your oil level. If you have a blown head gasket water would most likely (not always) get into your oil pan and increase the oil level with radiator fluid. The steam in your radiator was probably from the loss of water and over heating. If you run your engine, water in your oil could wash out (ruin) your piston rings and you could lock up your engine.

Don't be afraid to get a maintenance manual and get your hands dirty. May seem difficult to do something you have never done. We were all in your place at one time. If possible, get a friend to help you out. However, many times you will find it is not that difficult and you will get satisfaction. If you have questions get on the forum and ask. You may have to buy some tools, if lacking. However, over time they will pay for themselves. You can also look up u tube videos to get ideas, if you do - watch more than one, since some are better than others. Best wishes!
« Last Edit: May 28, 2020, 12:12:54 PM by Mike81K10 »
"Tell me and I forget. Teach me and I remember. Involve me and I learn." -Benjamin Franklin

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2526
  • Old Goof
Re: Removing emissions
« Reply #18 on: May 28, 2020, 02:09:36 PM »
Check your oil level. If you have a blown head gasket water would most likely (not always) get into your oil pan and increase the oil level with radiator fluid. The steam in your radiator was probably from the loss of water and over heating. If you run your engine, water in your oil could wash out (ruin) your piston rings and you could lock up your engine.

We had a Ram Van w/340 v8 that had water in the oil.

Before swapping out with new long block, I TRIED TO BLOW IT UP by max revving...

No-go, only created taffy that I spent hours digging out of the pan and valve covers  ::)

i know it's unrelated but seemed funny!

So look 86, before you do anything like heavy lifting, do some tests:

VZ advised a block test. That is a store bought kit that tests your radiator water to see if there are excessive hydrocarbons (gasoline particulates) in your water. If it tests positive, you may have a blown head gasket.

A secondary test would be of Compression. There is a tolerable difference between cylinders, but if it exceed that, you may have blown head gasket.

While you have your plugs out, (number them with a sharpy so you know what hole they cam out of) look for signs on them.

Welcome to the world of square bodies, THEY RULE!!
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline 86 C-10 305 Guy

  • Newbie
  • Posts: 15
  • Newbie
Re: Removing emissions
« Reply #19 on: May 28, 2020, 02:43:31 PM »
Just did the combustion leak test and had no color change, pretty sure I did it correctly. The white smoke stopped coming out of the tailpipes also.


Sent from my iPhone using Tapatalk

Offline 86 C-10 305 Guy

  • Newbie
  • Posts: 15
  • Newbie
Re: Removing emissions
« Reply #20 on: May 28, 2020, 02:46:45 PM »
Next I guess will be the compression test. Anyone know what this is and if it’s ok for all of them to be plugged off? With the blue caps


Sent from my iPhone using Tapatalk

Offline 86 C-10 305 Guy

  • Newbie
  • Posts: 15
  • Newbie
Re: Removing emissions
« Reply #21 on: May 28, 2020, 02:51:24 PM »
Looks like it’s right above the thermostat housing


Sent from my iPhone using Tapatalk

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2526
  • Old Goof
Re: Removing emissions
« Reply #22 on: May 28, 2020, 03:06:44 PM »
The first thing to do is take plenty of pictures and inventory everything you take off. You'll want to retain all of the parts for the next owner or for resale. Leave the vapor canister and hook it up. Pretty much everything else is up for removal

The only other vac lines are to your brake booster, vacuum advance, and transmission modulator. (I don't know if you have a TH350C, if you do, I don't know how they're controlled. Suspect D/C)
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 18980
Re: Removing emissions
« Reply #23 on: May 30, 2020, 05:31:24 AM »
If you are talking vacuum hoses needed, which obviously all vacuum hoses are not for emissions, you need to retain:

Vacuum brake booster hose, vacuum advance hose, trans vacuum modulator hose as JP pointed out, HVAC controls & reservoir, PCV & Canister vent.

As far as capping everything, you aren't exactly making anything clean up the look under the hood. To eliminate would be to remove the items and run new vacuum lines where needed.
,                           ___ 
                         /  _ _ _\_
              ⌠¯¯¯¯¯'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2526
  • Old Goof
Re: Removing emissions
« Reply #24 on: May 30, 2020, 07:01:39 PM »
Knew I forgot something... ::)

86 you can remove those emission items and plug them.

A little well placed painting and your desired 'cleaned up' gets done!
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline 86 C-10 305 Guy

  • Newbie
  • Posts: 15
  • Newbie
Removing emissions
« Reply #25 on: June 11, 2020, 02:31:07 PM »
Update: truck is running pretty good. Drove it 90 miles at 60mph and the oil pressure stayed at about 45, Temp bounced between 195 and 200. Now the only issue I’m having is the passenger side headlight works but not the driver side. I tried changing the headlight and still have the same problem.


Sent from my iPhone using Tapatalk

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2526
  • Old Goof
Re: Removing emissions
« Reply #26 on: June 11, 2020, 04:16:46 PM »
bd would say: "look for a grounding problem"  ::)
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline ehjorten

  • Senior Member
  • ****
  • Posts: 1198
Re: Removing emissions
« Reply #27 on: June 11, 2020, 07:26:55 PM »
The thermostatic valve that is screwed into the top of the thermostat housing is used to control the hot air valve in the stock air cleaner.  You don't have a stock air cleaner, so that is why it isn't hooked up to anything.
-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline bd

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6438
Re: Removing emissions
« Reply #28 on: June 12, 2020, 11:10:14 AM »
Use an incandescent test light clipped to a clean, verified ground to validate 12 volts to the headlamp.  Probe the ground terminal in the headlamp connector, too.  Low and high beam should illuminate the test light full brightness, selectively, whereas probing the ground wire at the headlamp should never illuminate the test light.  Once you've verified power and ground, clean the connections with some WD-40 and re-test.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline 86 C-10 305 Guy

  • Newbie
  • Posts: 15
  • Newbie
Re: Removing emissions
« Reply #29 on: June 14, 2020, 11:05:38 AM »
Use an incandescent test light clipped to a clean, verified ground to validate 12 volts to the headlamp.  Probe the ground terminal in the headlamp connector, too.  Low and high beam should illuminate the test light full brightness, selectively, whereas probing the ground wire at the headlamp should never illuminate the test light.  Once you've verified power and ground, clean the connections with some WD-40 and re-test.
Thanks I’ll give that a try!!!!!


Sent from my iPhone using Tapatalk