jonlabree Posted June 18, 2007 Share Posted June 18, 2007 Does anyone index their plugs when they put them in?And If you do, How do you tell where the center is?Jon... Link to comment Share on other sites More sharing options...
Vincent Vega Posted June 18, 2007 Share Posted June 18, 2007 I have never done it. You put a mark on the insultor in line with the electrode. Link to comment Share on other sites More sharing options...
Vincent Vega Posted June 18, 2007 Share Posted June 18, 2007 insulator Link to comment Share on other sites More sharing options...
2seater Posted June 18, 2007 Share Posted June 18, 2007 Yes, I have done so, even on the Buick. It is no fun on the rear cylinders of a transverse engine. The procedure is simple, but tedious. I cut the electrode back on the plugs now. It probably shortens the life of the plug but I just use plain old Autolite copper core. Cheap. Link to comment Share on other sites More sharing options...
89REATTAJIM Posted June 18, 2007 Share Posted June 18, 2007 HUH???? Pls Decipher for the "indexed" challenged......... Link to comment Share on other sites More sharing options...
jonlabree Posted June 19, 2007 Author Share Posted June 19, 2007 I know all of that information!HOW do you tell where the center of the cylinder is???????? Link to comment Share on other sites More sharing options...
2seater Posted June 19, 2007 Share Posted June 19, 2007 I aimed the opening at the imagined location of the exhaust valve. There is a certain amount of uncertainty involved unless the head is open to see. There are many schools of thought, as I am sure you know, but I shoot for the tip of the ground strap to be aimed between the valves, preferably biased to the exhaust valve. Link to comment Share on other sites More sharing options...
jonlabree Posted June 19, 2007 Author Share Posted June 19, 2007 Thanks, That was the ifo I was looking for.Although I did think there was a more precise way of doing it. Link to comment Share on other sites More sharing options...
Vincent Vega Posted June 19, 2007 Share Posted June 19, 2007 I would like to see proof of the gains made by doing this. Link to comment Share on other sites More sharing options...
2seater Posted June 20, 2007 Share Posted June 20, 2007 Agreed. It's really one of those things you do if looking for the greatest uniformity in the assembly process. It can do no harm. In some cases it is even necessary for engines assembled right on the edge of clearances, where the opening must be pointed down toward the piston to avoid contact, just the opposite of what we are suggesting should be done. It's like many debates that go on regarding things automotive. Just look at the range of spark plugs that are offered, along with the claims; one ground electrode, two, four, none, forked, holes through the ground, rare earth metals, pointy and serated electrodes, on and on. I am sure that in some cases, combinations of spark plug and engine genuinely work better together than another combination, but I don't believe there is a universal fit for anything. It is almost always about combinations, the expectations and what the actual use will be. Personally I don't care for platinum plugs, but that's just me. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now