Why do I need to change the timing on my AMC 304?
As part of the tuneup procedure, you can adjust the timing on the 304 to synchronize the spark produced by the ignition coil with the pistons during their four-stroke cycle. This is necessary to prevent spark knock, preserve fuel economy and engine performance.
What was the first displacement of an AMC V8?
The first displacements from 1966 to 1969 were 290, 343 and 390. 1970 saw the introduction of the 304, 360, and 401 engines, each released with revised heads for better breathing.
When did Jeep start using the AMC engine?
The 1971 “J” Series was the first to receive an AMC engine (the 304), replacing the very capable and benchmark Buick Small Block V8. They began to phase their engines into all Jeep models in the following two years. 1972 was the first CJ to see the V8, AMC having lengthened the CJ’s front clip to accept the longer I6 and V8 offerings.
Where is the spark plug on AMC 304?
If you stand if front of the engine, facing the drive belts, the number one plug wire will be the first one on your right side. Make sure the clamp-on clip is as close to the spark plug as possible.
As part of the tuneup procedure, you can adjust the timing on the 304 to synchronize the spark produced by the ignition coil with the pistons during their four-stroke cycle. This is necessary to prevent spark knock, preserve fuel economy and engine performance.
What was the last year the AMC Hornet was made?
After 1974, the famed 401 took a powder from civilian-issued passenger cars (cop-spec AMCs could still get the company’s largest V-8 for another year or so), and even the 360 disappeared from the Hornet’s option list.
When did the Jeep AMC 304 come out?
The AMC 304 was introduced in Jeep vehicles in 1971 in J-series pickups and Wagoneers and in 1972 in the CJ vehicles. Early 304s performed well, so well that frame changes were made to the CJs in ’73 to prevent cracks.
The 1971 “J” Series was the first to receive an AMC engine (the 304), replacing the very capable and benchmark Buick Small Block V8. They began to phase their engines into all Jeep models in the following two years. 1972 was the first CJ to see the V8, AMC having lengthened the CJ’s front clip to accept the longer I6 and V8 offerings.