spark plugs
- Thread starter ron hebb
- Start date
BUBBAS IGNITION
Well-known member
We have ran nothing but Champion H-10 for years and love them..........
51504bat
Well-known member
I've heard but don't know if its internet fiction but you should always thread new plugs in a cast iron head to remove any burrs on the plugs so as not to damage the threads in the aluminum heads. Again don't know if its BS or not but it couldn't hurt.
Gary in La.
Well-known member
I was running Champion H-10's up to 2003. Then I had 2 sets that were having "ignition missing" problems within a 1000 miles. I switched to Autolite 216 and haven't had a bad plug since. When I checked the H-10's from the 2 sets I always had several plugs that would have intermittent spark on my tester.
BUBBAS IGNITION
Well-known member
Ok here goes, i wasnt going to get in to this one as i have been there many times over the years....
SPARK PLUGS
Once upon a time i was a much younger mechanic working for a fleet ( Town of Speedway) part of our fleet was a few F600 Ford trucks. At the time they were shipped to us with no bed either v8 FE Big block or 300 six engines. Once recieved we took the trucks to a local company and had dump beds and "in city" rear ends installed in them.
One of the problems we had was they eat spark plugs !! Sometimes needing the plugs changed weekly.....every one of these trucks eat plugs , fouling etc very quickly. Happens to be they used autolite or motorcraft ( later) plugs from the factory.
The champion plug guy came by the shop one day , took one luck at some of these plugs and said " i can fix that these autolite plugs are junk". He gave me a couple sets of champion plugs to try for a while and a hat and jacket. ( the hat and jacket are very important in this story)
The champions ran better and fixed the problem !!!!!!!!
Now as a young mechanic what do you think we said for a long time???? Of course i said the autolites were junk and champions are the way to go!!!!
The champion sales guy was very happy to supply plug for our 100 vehicle fleet, we even started using them in our chainsaws, more jackets , hats and a few shop stools came with the deal!!!!
Years later teaching a four hour class at Lincoln Tech on spark plugs it dawned on me , champion had nothing to do with the fix.
Heres what really happened:
Ford had the correct spark plug in the engine to start with , the correct heat range, the correct extended tip and electrode. We changed all that by changining the rear axle ratio to suit our needs. The rpm band of operation was changed and the engine needed another heat range for proper operation. The champion guy gave us another heat range ( maybe by accident) and we chose champion every after.......
The champion sales guy went on to buying a new dodge, white shoes and white belt as he was very popular for many years.
Many times today i see this story unfold with other plug example, on the flathead we add a cam shaft, change the engine size and install new multiple carbs not to mention gear ratio and tire size with a new exhaust. Does all this need a plug change , you bet it does , then we buy another brand that accidently ( wrong heat range design etc) and guess what thats the brand we use , AND if we can get the free hat, jackets and cabinents thats even better.
Have i ever told ya the story about missing second gear on a medium riser 427 Ford and blowing the engine up at appro 10,000 rpm???? Yep that was caused by STP used on assembly !!!!!!! Yep thats what it was !!!!!!
" Bubba Vision is a terrible thing sometimes"
SPARK PLUGS
Once upon a time i was a much younger mechanic working for a fleet ( Town of Speedway) part of our fleet was a few F600 Ford trucks. At the time they were shipped to us with no bed either v8 FE Big block or 300 six engines. Once recieved we took the trucks to a local company and had dump beds and "in city" rear ends installed in them.
One of the problems we had was they eat spark plugs !! Sometimes needing the plugs changed weekly.....every one of these trucks eat plugs , fouling etc very quickly. Happens to be they used autolite or motorcraft ( later) plugs from the factory.
The champion plug guy came by the shop one day , took one luck at some of these plugs and said " i can fix that these autolite plugs are junk". He gave me a couple sets of champion plugs to try for a while and a hat and jacket. ( the hat and jacket are very important in this story)
The champions ran better and fixed the problem !!!!!!!!
Now as a young mechanic what do you think we said for a long time???? Of course i said the autolites were junk and champions are the way to go!!!!
The champion sales guy was very happy to supply plug for our 100 vehicle fleet, we even started using them in our chainsaws, more jackets , hats and a few shop stools came with the deal!!!!
Years later teaching a four hour class at Lincoln Tech on spark plugs it dawned on me , champion had nothing to do with the fix.
Heres what really happened:
Ford had the correct spark plug in the engine to start with , the correct heat range, the correct extended tip and electrode. We changed all that by changining the rear axle ratio to suit our needs. The rpm band of operation was changed and the engine needed another heat range for proper operation. The champion guy gave us another heat range ( maybe by accident) and we chose champion every after.......
The champion sales guy went on to buying a new dodge, white shoes and white belt as he was very popular for many years.
Many times today i see this story unfold with other plug example, on the flathead we add a cam shaft, change the engine size and install new multiple carbs not to mention gear ratio and tire size with a new exhaust. Does all this need a plug change , you bet it does , then we buy another brand that accidently ( wrong heat range design etc) and guess what thats the brand we use , AND if we can get the free hat, jackets and cabinents thats even better.
Have i ever told ya the story about missing second gear on a medium riser 427 Ford and blowing the engine up at appro 10,000 rpm???? Yep that was caused by STP used on assembly !!!!!!! Yep thats what it was !!!!!!
" Bubba Vision is a terrible thing sometimes"
Gary in La.
Well-known member
Good story and logical but just to be clear I am running a stock 1946 Ford with a stock 59A engine.
Bassman/NZ
Well-known member
I bought a new set of Autolite 216s from the US, ran 50 miles and 4 or 5 of them cracked. Have since heard from others with a similar story, yet many people swear by them. Tried NGK B6Ls and Champion H10s, both fouled. Tried Champion H12s ... now we're cooking!
Walt Dupont--Me.
Well-known member
I worked for a Cad an Olds dealer back in 57-61. Those engines came with AC plugs. Back them we tuned the engine ever 10'000 miles. Once in awhile we would get a car in with a skip, remove the plugs and someone installed Champion plugs, we would install a set of AC and tell the owner these engine won't run on Cham plugs. I'm sure if we got the right heat range Cham plugs the engine would run fine. But no one want to bye a 1/2 doz set of plugs. Walt
BUBBAS IGNITION
Well-known member
8s - 10s-or 12s......
The newer plugs with the extended insulator tips will auto correct for a few heat ranges up and down.
Kinda a neat design driving slow intake air is hot (warm) hotter plug, driving fast intake air is cooler (chilled) colder plug..
Before the extended tips we actually needed to adjust the plug for driving....