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how to adjust a rocker arm in 1989 gmc 1500 2wd automatic with

Sent to Car Experts October 3 2008 at 12:54 PM
   

how to adjust a rocker arm in 1989 gmc 1500 2wd automatic with a 4.3 motor?

 

Optional Information:
1989 GMC 1500 4.3

Already Tried:
try to adjust the rocker arm but still making noise,im scare to adjusting to much and lock a motor or something like that

Customer (name blocked for privacy)
Status:  Closed   Value: $9
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October 3 2008 at 12:58 PM (4 minutes and 21 seconds later)
         
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high tech -- Technician -- 99% Positive Feedback on 649 Car Accepts
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October 3 2008 at 1:15 PM (17 minutes and 4 seconds later)
         
can you be more specific please ,because i can understand the table.you mean with the piston n0 1 up i can adjust a rocker arm in that cilynder,just adjust a nut whith a socket and that said?i dont need any other tool? i have to adjust both at the same , what torque?it that have any combination in pistons?like 1and 4 if so can i ajust those at the same time?

Edited by Customer (name blocked for privacy) on October 3 2008 at 1:25 PM
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October 3 2008 at 1:38 PM (22 minutes and 50 seconds later)
         
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high tech -- Technician -- 99% Positive Feedback on 649 Car Accepts
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October 3 2008 at 1:48 PM (9 minutes and 33 seconds later)
         
compression stroke means piston up right?


Piston @ TDC
Adjust Intake Adjust Exhaust

No.1
No.1,2&3 No.1,5&6

No.4
No.4,5&6 No.2,3&4

sorry but this is what i don't understand can you put it in different way that i can get it?
Customer (name blocked for privacy)
Answer
October 3 2008 at 2:03 PM (15 minutes and 24 seconds later)
         
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Just because the piston is up it does not mean it is on the compression stroke, you need to hold your finger over the hole to see when the compression come up it will be quite obvious, then be sure the timing mark is on 0. The way to read the table is, on #1 you adjust the 1, 2 and 3 intake rockers and the 1, 5 and 6 exhaust rockers. And on the #4 after you rotate the crank 360 degrees you adjust the 4, 5 and 6 intake rockers and the 2, 3 and 4 exhaust rockers.

I will do my best to answer your question so if you would click the Accept button and a bonus would be great if my answer helps you I would appreciate it. Thanks, Daryl
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high tech -- Technician -- 99% Positive Feedback on 649 Car Accepts
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