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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2013 Posts: 176 Shop Shark | | Shop Shark Joined: Mar 2013 Posts: 176 | What is the proper method for the initial setting of the distributor? 41, 236 GMC.
Thanks,Nick. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | LIne up the ball of the flywheel to the pointer on the flywheel housing so that the number one cylinder is on a compression stroke - take out #1 spark plug and see with a small screwdriver if the piston is up (is on a compression stroke).
Loosen the distributor clamp and rotate the distributor so that the rotor points to the #1 spark plug lead. | | | | | Joined: Mar 2013 Posts: 176 Shop Shark | | Shop Shark Joined: Mar 2013 Posts: 176 | Thanks, nothing tricky about engaging the oil pump? My distributor is out right now. | | | | | Joined: Feb 2004 Posts: 29,792 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,792 | The oil pump drive can be rotated with a long flat-blade screwdriver so the tang of the distributor shaft engages properly.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | While it's out, check the oiling to the rocker assembly. Remove the valve cover and take that screwdriver mentioned above, and take off the handle, then chuck the screwdriver up in your electric drill. Run the drill and make sure your rocker oiling is even and you have oil seeping out of each rocker. The drill speed should also be sufficient to see your oil pressure if you have a gauge hooked up. Put the slot in the bottom back where you found it, or you will have some playing to do to get your distributor back in. Once its back in, make sure its down all the way. It IS possible to have the rotor turning and the engine running fine and have ZERO oil pressure because you didn't put it down all the way. Check your oil pressure once its in right away. This is discussed in detail here: http://devestechnet.com/Home/Project1959235 | | | | | Joined: Mar 2013 Posts: 176 Shop Shark | | Shop Shark Joined: Mar 2013 Posts: 176 | Thanks guys will check it out as soon as I can. No shop and it's raining. Hard to complain about it,but it sure makes it hard to work on the truck in the driveway. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | You will find that as you start to insert the distributor the rotor will turn some as it engages the cam drive gear. Sometimes it takes a few tries. | | |
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