Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Compression Testing - Idiots Guide

Thread Tools
 
Search this Thread
 
Old 04-15-2004, 01:06 PM
  #16  
Tony
Addict
Lifetime Rennlist
Member
 
Tony's Avatar
 
Join Date: May 2001
Location: Las Vegas
Posts: 14,676
Received 584 Likes on 305 Posts
Default

Any problems to using a battery charger that has 125/hr amp jump start capability? I have a craftsman charger that has that feature,very handy. It s saved me several times home alone and not having another car to jump from. With the charger/jumper you are pretty much guaranteed the same cranking power from one cyl to the next. I would definitely leave a few minutes between each cylinder for motor cooling.

If in doubt about damage to the LH..EZK, just un plug them.


just an idea.

Old 04-15-2004, 01:07 PM
  #17  
ViribusUnits
Nordschleife Master
 
ViribusUnits's Avatar
 
Join Date: Aug 2002
Location: South Texas
Posts: 9,010
Likes: 0
Received 2 Likes on 2 Posts
Default

Don't do that.

One fuse, and one connector kill the fuel system, and the ignition system. If you forget that, you've got no bussness working on cars in the first place.
Old 04-15-2004, 01:10 PM
  #18  
Tony
Addict
Lifetime Rennlist
Member
 
Tony's Avatar
 
Join Date: May 2001
Location: Las Vegas
Posts: 14,676
Received 584 Likes on 305 Posts
Default

One fuse, and one connector kill the fuel system, and the ignition system. If you forget that, you've got no bussness working on cars in the first place.
If your that confident that one fuse will isolate the LH.EZK from a source of electrical current. Go ahead. Ive seen enough odd things in this cars electrical system let alon numerous airplanes to know, NEVER TRUST A FUSE

Id unplug every thing that had a chip in it before i used i high amp jump/charger.

Old 04-15-2004, 01:13 PM
  #19  
ViribusUnits
Nordschleife Master
 
ViribusUnits's Avatar
 
Join Date: Aug 2002
Location: South Texas
Posts: 9,010
Likes: 0
Received 2 Likes on 2 Posts
Default

In my car it's the transterized ignition unit.

And no the fuse has no effect on the ignition system. The fuse isolates the fuel pump.

The connector removes power to the coil. No power, the coil won't fire, and that that. It's that simple. There is no simple easy fuse to isolate the ignition system. However, the postive side of the ignition coil will do it.
Old 04-15-2004, 01:17 PM
  #20  
SharkSkin
Rennlist Member
 
SharkSkin's Avatar
 
Join Date: Jan 2004
Location: Boulder Creek, CA
Posts: 12,620
Likes: 0
Received 6 Likes on 6 Posts
Default

Originally posted by ViribusUnits
Don't do that.

One fuse, and one connector kill the fuel system, and the ignition system. If you forget that, you've got no bussness working on cars in the first place.
Oh, you've never ever forgotten some step in a process and created a problem? Hard to believe. I prefer to approach things in the most fail-safe manner that is reasonably possible... You have your own preferences and IMHO neither of us is wrong. But the purpose of this forum is NOT for everyone to agree on everything, but to expose us all to DIFFERENT ideas.

'nuff said.
Old 04-15-2004, 01:24 PM
  #21  
ViribusUnits
Nordschleife Master
 
ViribusUnits's Avatar
 
Join Date: Aug 2002
Location: South Texas
Posts: 9,010
Likes: 0
Received 2 Likes on 2 Posts
Default

I've forgotten stuff, but before I do something can't be undune, I double check everything, and then check it again.

Eighter way I guess.
Old 04-15-2004, 01:33 PM
  #22  
Old & New
Rennlist Member
 
Old & New's Avatar
 
Join Date: Dec 2002
Location: Southern New England
Posts: 1,975
Likes: 0
Received 0 Likes on 0 Posts
Default

With all the plugs out, it doesn't take much to crank the engine & I have found that a fresh battery will make it through a compression test without significant discharge.



Quick Reply: Compression Testing - Idiots Guide



All times are GMT -3. The time now is 10:21 AM.