help! truck wont start! help plz...... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**yote1234** · 11-28-2010, 10:33 PM

well after a 13 month total restorationon my 72 cheyenne i am trying to start it again.. but it wont start. can anyone think of something i missed?
its an hei system.......

pulled #1 plug
brought piston up to top of compression stroke
rotor pointing at #1 plug wire
plugs getting plenty of spark
poured gas into carb to prime
activate starter
nothing but turning over!
will not even hickup... any ideas?????

STOCKISH · 11-28-2010, 10:42 PM

Firing order right? 1-8-4-3-6-5-7-2? clockwise on the cap?

**yote1234** · 11-28-2010, 10:46 PM

yes sir! checked twice... clockways...

**too much stuff** · 11-28-2010, 10:57 PM

Does it sound normal when it cranks over? Are the plugs dry or wet after cranking?

**yote1234** · 11-28-2010, 11:01 PM

sounds very normal turning over.. just cranking... plug lightly moist with fuel... not bad?

hayhauler71 · 11-28-2010, 11:04 PM

rocker arms adjusted to tight holding valves open. did you do a compression test?

**yote1234** · 11-28-2010, 11:07 PM

ahhhh!!!! no i didnt.. and i had the engine rebuilt someone else... will do a compression test tomorrow! big thanx...........

hayhauler71 · 11-28-2010, 11:14 PM

Quote:

Originally Posted by yote1234

ahhhh!!!! no i didnt.. and i had the engine rebuilt someone else... will do a compression test tomorrow! big thanx...........

if the engine sat for awhile the lifters may have bled down causing the valves not operate properly. cranking the engine over a few more times should pump them back up but do not flood the engine or you will wash the cylinders down

**yote1234** · 11-28-2010, 11:19 PM

hmmm. so you think i should start with compression test?

68GMCCustom · 11-28-2010, 11:22 PM

or go thru a complete rocker arm adjustment procedure for all valves.

**yote1234** · 11-28-2010, 11:25 PM

yea might have to... i will call the guy that rebuilt it to see what he sayz as well. thx,guyz..........

hayhauler71 · 11-28-2010, 11:26 PM

compression test will tell the story

rsavage · 11-28-2010, 11:39 PM

Make sure that you aren't 180 degrees off. It's easy to stab the distributor at what you think is TDC on compression when it actually was at the top of the exhaust stroke. You can pull the driver's side valve cover to insure both valves are closed, and you could also check to see if rockers are adjusted close at the same time.

hardwaa · 11-29-2010, 01:23 AM

Figure it out yet?

Nuts&bolts · 11-29-2010, 01:35 AM

Hello every body I'm a newbee posting stuff I've had a problem like that on my last motor and it showed spark but the hei was not getting enough spark simple test run a wire stright from hei + to battery + just to ensure the right spark... Just a idea
Posted via Mobile Device
Posted via Mobile Device

**yote1234** · 11-29-2010, 11:03 AM

Quote:

Originally Posted by rsavage

Make sure that you aren't 180 degrees off. It's easy to stab the distributor at what you think is TDC on compression when it actually was at the top of the exhaust stroke. You can pull the driver's side valve cover to insure both valves are closed, and you could also check to see if rockers are adjusted close at the same time.

i thought that but, it is on compression because we put our thumb over the plug hole and it pushes out.....

Quote:

Originally Posted by hayhauler71

compression test will tell the story

will check tonight. thx...

Quote:

Originally Posted by hardwaa

Figure it out yet?

not yet. i couldnt reply to your pm. its a setting at your end. ???

[QUOTE=Nuts&bolts;4319726]Hello every body I'm a newbee posting stuff I've had a problem like that on my last motor and it showed spark but the hei was not getting enough spark simple test run a wire stright from hei + to battery + just to ensure the right spark... Just a idea

i have 1/2 " of spark jump...?
so i dont think its that. but thx for the reply. and welcome to the site.....

**yote1234** · 11-30-2010, 08:36 PM

well i found out the problem........ dist hold down bolt loose! it was raised up off the block deck about 1/2 " and out of timing... i thank all of you for your advice!!!!!! big thanx............. dave

swamp rat · 12-01-2010, 12:42 AM

Quote:

Originally Posted by yote1234

well i found out the problem........ dist hold down bolt loose! it was raised up off the block deck about 1/2 " and out of timing... i thank all of you for your advice!!!!!! big thanx............. dave

I may be a little late but did you prime the oil pump before you started cranking? i read it was just rebuilt..

doctrouble · 12-01-2010, 12:51 AM

Wow, you guys are awesome

, just the response time on replies, it's like an emergency room for my truck . Sorry this is my first post on the forum..

**yote1234** · 12-01-2010, 09:42 AM

Quote:

Originally Posted by swamp rat

I may be a little late but did you prime the oil pump before you started cranking? i read it was just rebuilt..

yes sir i did... thx,dave

Quote:

Originally Posted by doctrouble

Wow, you guys are awesome

, just the response time on replies, it's like an emergency room for my truck . Sorry this is my first post on the forum..

i agree... these people are g r e a t !!!!!!!!!! thx everyone !!!

11-28-2010, 10:42 PM	#2
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	Re: help! truck wont start! help plz...... Firing order right? 1-8-4-3-6-5-7-2? clockwise on the cap? __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

11-28-2010, 10:46 PM	#3
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	Re: help! truck wont start! help plz...... yes sir! checked twice... clockways... __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

11-28-2010, 10:57 PM	#4
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,748	Re: help! truck wont start! help plz...... Does it sound normal when it cranks over? Are the plugs dry or wet after cranking? __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

11-28-2010, 11:01 PM	#5
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	Re: help! truck wont start! help plz...... sounds very normal turning over.. just cranking... plug lightly moist with fuel... not bad? __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

11-28-2010, 11:04 PM	#6
hayhauler71 Registered User Join Date: Aug 2009 Location: St. Paul MN. Posts: 1,996	Re: help! truck wont start! help plz...... rocker arms adjusted to tight holding valves open. did you do a compression test? __________________ Fuzzy

11-28-2010, 10:33 PM	#1
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	help! truck wont start! help plz...... well after a 13 month total restorationon my 72 cheyenne i am trying to start it again.. but it wont start. can anyone think of something i missed? its an hei system....... pulled #1 plug brought piston up to top of compression stroke rotor pointing at #1 plug wire plugs getting plenty of spark poured gas into carb to prime activate starter nothing but turning over! will not even hickup... any ideas????? __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

11-28-2010, 11:07 PM	#7
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	Re: help! truck wont start! help plz...... ahhhh!!!! no i didnt.. and i had the engine rebuilt someone else... will do a compression test tomorrow! big thanx........... __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

11-28-2010, 11:19 PM	#9
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	Re: help! truck wont start! help plz...... hmmm. so you think i should start with compression test? __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

11-28-2010, 11:22 PM	#10
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: help! truck wont start! help plz...... or go thru a complete rocker arm adjustment procedure for all valves. __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

11-28-2010, 11:25 PM	#11
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	Re: help! truck wont start! help plz...... yea might have to... i will call the guy that rebuilt it to see what he sayz as well. thx,guyz.......... __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

11-28-2010, 11:26 PM	#12
hayhauler71 Registered User Join Date: Aug 2009 Location: St. Paul MN. Posts: 1,996	Re: help! truck wont start! help plz...... compression test will tell the story __________________ Fuzzy

11-28-2010, 11:39 PM	#13
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Re: help! truck wont start! help plz...... Make sure that you aren't 180 degrees off. It's easy to stab the distributor at what you think is TDC on compression when it actually was at the top of the exhaust stroke. You can pull the driver's side valve cover to insure both valves are closed, and you could also check to see if rockers are adjusted close at the same time. __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7

11-29-2010, 01:23 AM	#14
hardwaa Registered User Join Date: Sep 2007 Location: gilbert, az Posts: 802	Re: help! truck wont start! help plz...... Figure it out yet? __________________ I LOVE BURNOUTS:metal NO BOZO's Last edited by hardwaa; 11-29-2010 at 01:27 AM. Reason: did not read entire post!

11-29-2010, 01:35 AM	#15
Nuts&bolts Registered User Join Date: Nov 2010 Location: Redding ca Posts: 3	Re: help! truck wont start! help plz...... Hello every body I'm a newbee posting stuff I've had a problem like that on my last motor and it showed spark but the hei was not getting enough spark simple test run a wire stright from hei + to battery + just to ensure the right spark... Just a idea Posted via Mobile Device Posted via Mobile Device

11-30-2010, 08:36 PM	#17
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,364	Re: help! truck wont start! help plz...... well i found out the problem........ dist hold down bolt loose! it was raised up off the block deck about 1/2 " and out of timing... i thank all of you for your advice!!!!!! big thanx............. dave __________________ 1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey



Register or Log In To remove these advertisements.

12-01-2010, 12:51 AM	#19
doctrouble Registered User Join Date: Nov 2010 Location: L.A. California Posts: 82	Re: help! truck wont start! help plz...... Wow, you guys are awesome , just the response time on replies, it's like an emergency room for my truck . Sorry this is my first post on the forum..

Register or Log In To remove these advertisements.