1st Generation S-series (1983-1994) Tech Discuss 1st generation S-series (1983-1994) general tech topics here.

1987 S10 Blazer still won't run

Thread Tools
 
Search this Thread
 
  #1  
Old 07-11-2010, 03:59 PM
pbrew's Avatar
Beginning Member
Thread Starter
Join Date: Apr 2008
Posts: 13
pbrew is an unknown quantity at this point
Default 1987 S10 Blazer still won't run

I installed new timing chain, sprockets, and chain dampner. I have spark and fuel at injecters at throtle body. I tried turning it over befor re-installing cover, water pump, and it still won't fire. I lined up timing marks as best I could. any suggestions. Paul
 
  #2  
Old 07-13-2010, 01:20 AM
Gimpy Blazer's Avatar
Senior Member
Join Date: Dec 2009
Location: Keller, Texas
Posts: 845
Gimpy Blazer is on a distinguished road
Default

Sure you're on No. 1 and not No. 4?
 
  #3  
Old 07-13-2010, 08:26 PM
pbrew's Avatar
Beginning Member
Thread Starter
Join Date: Apr 2008
Posts: 13
pbrew is an unknown quantity at this point
Default

it's possible i put the distributor back in wrong, I lined up the timing marks befor I installed the new chain and sprockets. A freind suggested I pull the number one plug and put a rag in the hole and crank the engine till the compression blows it out to find compression stroke and than pull dist. cap and see which cylinder is lined up with the rotor tab, and go fromthere. Paul
 
  #4  
Old 07-13-2010, 08:53 PM
ohsofly's Avatar
Super Member
Join Date: Jan 2010
Location: Camrose AB... Canada
Posts: 1,534
ohsofly will become famous soon enoughohsofly will become famous soon enough
Default

thats how its done, i just stick a finger over not into the plug hole, but the rag would work too i guess,
 
  #5  
Old 07-15-2010, 01:11 AM
Gimpy Blazer's Avatar
Senior Member
Join Date: Dec 2009
Location: Keller, Texas
Posts: 845
Gimpy Blazer is on a distinguished road
Default

You know that the marks will line up on No. 4 as well as No. 1? What engine do you have? I am guessing a 2.8L, right?
 
  #6  
Old 07-16-2010, 05:00 PM
pbrew's Avatar
Beginning Member
Thread Starter
Join Date: Apr 2008
Posts: 13
pbrew is an unknown quantity at this point
Default

Right, 2.8L
 
  #7  
Old 07-17-2010, 01:28 AM
Gimpy Blazer's Avatar
Senior Member
Join Date: Dec 2009
Location: Keller, Texas
Posts: 845
Gimpy Blazer is on a distinguished road
Default

You needed to have the engine at No. 1 cylinder TDC and the valves to No.1 both closed (cam in correct position) and then line up the marks on the crank and cam. Did you do this? If not you may have the cam and crank out of sync. The easiest way to check this is to put No. 1 piston at TDC and pull the valve cover and check if both valves are closed on No. 1. Don't know your level of experience with engine buildup so I'm not trying to be insulting.
 
  #8  
Old 07-22-2010, 09:57 PM
pbrew's Avatar
Beginning Member
Thread Starter
Join Date: Apr 2008
Posts: 13
pbrew is an unknown quantity at this point
Default

Thanks for all the help. After I found the compression stroke for the #1 cylinder, I pulled the distributor cap off again. The rotor was pointing to next cylinder. I pulled the distributor out again and set the rotor back to #1 cyl. put dist. back on and it fired right up and ran. Just have to get a new harmonic balancer and I can wrap everthing up and check with timing light. Thanks again, Paul
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Becky Bartlett
1st Generation S-series (1983-1994) Tech
1
07-12-2015 09:06 AM
m3dragon
Off Roading
1
02-24-2015 10:04 AM
jheth71
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
3
11-13-2013 03:42 PM
pbrew
1st Generation S-series (1983-1994) Tech
3
06-01-2010 12:36 AM
pablo4429
Engine & Transmission
9
12-22-2007 09:59 PM



Quick Reply: 1987 S10 Blazer still won't run



All times are GMT -5. The time now is 04:56 AM.