rich_e777 and 3 othersreacted to
Giraffeassbitch for a topic
Hello everyone! Long time lurker, first time having an account on any forum. I recently bought a '93 Chevy Lumina Z34, and am excited to start my work on it whenever I can. It's currently in another province, at my parents house, so I sadly won't be able to post pictures for a couple weeks.
-J
I learned you can hang a bungee cord from its midpoint off the master cylinder then hook the covering boot with both ends to hold it out of the way of that pinch bolt. I`d thought I`d have an issue getting it back on the R&P correctly but havent gotten that far yet.
Engine bay support bar is a must for getting one of these things off, $50 Harbor Freight one and a HD ratchet strap around the trans works great. I dont think getting your current one off will be an issue, it`ll be finding a suitable replacement without it having to be shipped. I recall the subframe swap thread as will and wished I would have paid better attention as to what needed swapped over to get them to work.
According to Crazy K and Jman093 from 2012 the 1st and 1.5st will NOT fit on a 2nd gen.
https://www.w-body.com/topic/49121-newer-impala-aluminum-subframe-compatibility/
No, not really.
There is ONE spark pulse per coil. It travels down one plug wire, crosses the spark plug gap. Travels through the conductive metal engine to the other spark plug that the coil is paired with. Jumps that plug in the reverse direction. Travels up the plug wire where it completes it's circuit in the secondary windings of the coil.
The plug that fires in the normal direction, ALWAYS fires in the normal direction. The plug that fires in reverse polarity ALWAYS fires in reverse polarity. The polarity does not switch back and forth depending on whether the cylinder is firing on compression stroke or exhaust stroke.
Thus the extra-high voltage on these coils--they have to be powerful enough to fire a spark plug with reverse-polarity and still get a reliable spark-and-burn in that cylinder.
This is also why you don't install "regular" Platinum plugs in a waste-spark ignition system. Half the plugs will have the platinum on the wrong side of the arc. You'd need "double-Platinum" plugs for this application.