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Mod | | | Forums66 Topics128,103 Posts1,056,183 Members48,436 | | Most Online14,466
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: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | First be patient with me....I'm an engine idiot but I'm trying to learn not to be an engine idiot.
Secondly, I checked my valves and set them to the shop manual specs. While looking at my distributor, I noticed the number one wire was at the six o'clock position. Isn't it supposed to be at the one o'clock position or doesn't that matter? All the plugs went to the proper cylinders according to the firing pattern.
Third, I put my new vacuum gauge on the engine and it showed 15.5 inches pretty much steady at idle. Now that being said if I subtract 1" per 1000' asl, that would really be 18.5"s because my house is around 3500' asl...correct? As I turned the distributor the vacuum didn't move but the engine began to run worse either direction.
I'm pretty sure the engine, or part of it has been rebuilt due to the not correct orange paint. But I'm struggling trying to get this engine to run properly. The good part is it starts the brakes finally work!!!
Bruce | | | | | Joined: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | 6 o'clock is fine. I have several 261 tuneup procedures and adjustment procedures on my website in the How-To section. Sounds like you have it under control! | | |
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