View Full Version : Changing Spark plugs on a 87 ProStar???

04-18-2005, 09:45 AM
Can anyone offer advise on how to pull the Spark Plugs on an 87 ProStar. To me it almost looks like I have to take off the exhaust manifolds. :eek: :eek: There must be an easier way to do this job.

04-18-2005, 09:52 AM
not sure how much different an '87 is from a '91, but I used a box end wrench instead of a socket, one or two plugs were tough, but they came out with some patience

east tx skier
04-18-2005, 10:06 AM
Box wrench should work fine. Those rear plugs are difficult, but can be done without removing anything assuming you can dislocate your shoulder without much trouble. ;)

But seriously, it just requires 1 beer and some foul language.

04-18-2005, 10:10 AM
Yep, Just used a 5/8" box wrench on my '88. Not as difficult as it looks.

east tx skier
04-18-2005, 10:43 AM
... just more difficult than a chevy 350.

04-18-2005, 11:06 AM
Thanks Guys I'll give it a try this weekend.

04-21-2005, 01:12 PM
On my 90 Maristar, changing the plugs used to take about 2 hours, 6 bandaides, and a 6-pack of brews. The manifolds were in the way to prevent virtually any tool except an open faced wrench.

So, I got creative. I took a spark plug socket and cutoff about off of the open end with a hacksaw. Then, I used a large drill bit and cored into the socket to allow the spark plug to seat deeper in the socket. The plug end then sticks out through the 3/8 square opening. Then, I went and got a 19 mm combination wrench with the built in racketing box end. This allows me to change the plugs in about 20 minutes. Job still requires 2 beers though.