XJ XJ6 / XJR6 ( X300 ) 1995-1997

X300 Engine Compression Test

 
  #1  
Old 01-20-2019, 04:57 PM
Lady Penelope's Avatar
Veteran Member
Thread Starter
Join Date: Apr 2017
Location: Kansas City USA
Posts: 3,776
Received 1,214 Likes on 966 Posts
Default X300 Engine Compression Test

Is there a official compression test and procedure with reference numbers for the inline 6

A intact X300 just came into a salvage yard and would like to check while the car is still together

Editing
 

Last edited by Lady Penelope; 01-20-2019 at 05:04 PM.
  #2  
Old 01-21-2019, 07:43 AM
Senior Member
Join Date: Feb 2012
Location: Manchester UK
Posts: 742
Received 520 Likes on 324 Posts
Default

Nothing special about the procedure. Just disable fueling and spark.

This is from factory manual



 
The following users liked this post:
Lady Penelope (01-21-2019)
  #3  
Old 01-21-2019, 06:54 PM
Lady Penelope's Avatar
Veteran Member
Thread Starter
Join Date: Apr 2017
Location: Kansas City USA
Posts: 3,776
Received 1,214 Likes on 966 Posts
Default

Thanks,

Went to the salvage yard today and the car was abandoned , left to be towed off , and auctioned to the present salvage yard

No key and attempted to jumper the switch to start it up and see the mileage on it

No joy but got her to chime the security system with external power and no power to the dash

Looking to see the mileage and if the engine is in salvageable mileage range

Will attempt to remove the ignition switch from the key barrel and just rotate the switch fully connected and wired up

Popped the trunk and charging battery up for a Wednesday try

I am use to doing stationary compression test on aircraft piston engines where there is a specific set of numbers as a standard , tested once a year by law and entered into the legal aircraft maintenance logbook . In this case the numbers are for comparison

First priority is to see the mileage , start the engine expecting some tinkering , run for awhile reconditioning the piston rings , then a compression test

160 - 167 Psi with a 7 psi spread between cylinders at 300 RPM min
 

Last edited by Lady Penelope; 01-21-2019 at 07:22 PM.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
giandanielxk8
XK8 / XKR ( X100 )
10
01-03-2019 12:47 PM
StagByTriumph
XJ XJ8 / XJR ( X308 )
27
12-07-2018 06:38 AM
Turkay Istek
General Tech Help
0
12-06-2018 01:27 PM
SableXJ6C
XJ6 & XJ12 Series I, II & III
2
11-17-2018 07:42 AM
Deano!
XK8 / XKR ( X100 )
6
11-12-2018 01:19 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: X300 Engine Compression Test


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: