Sorry if this is an obvious question:
How does one perform a compression test with the engine rotated for service?
Or, more precisely - How do you get the starter motor to turn with engine rotated?
Don't see how you can do it with the engine in position so you could do it warm etc due to plug access.
I've wired the starter motor directly to the battery with the starter and solenoid energised, battery not connected: Result - a few random lights on dash. No response from starter motor.
Your thoughts much appreciated.
Ulysses - How to do a compression test with engine rotated.
-
- Posts: 28
- Joined: Sun Oct 14, 2018 6:54 am
- Current ride: 2007 Ulysses
- Location: Elmswell Suffolk
Ulysses - How to do a compression test with engine rotated.
Rules are for the guidance of wise men and the obedience of fools.
-
- Posts: 3055
- Joined: Wed May 06, 2009 7:42 pm
- Current ride: M2 Razorback
- Location: Mouth of the Port in the Shire of Hamp
Re: Ulysses - How to do a compression test with engine rotated.
Bublnsqueak wrote:Sorry if this is an obvious question:
How does one perform a compression test with the engine rotated for service?
Or, more precisely - How do you get the starter motor to turn with engine rotated?
Don't see how you can do it with the engine in position so you could do it warm etc due to plug access.
I've wired the starter motor directly to the battery with the starter and solenoid energised, battery not connected: Result - a few random lights on dash. No response from starter motor.
Your thoughts much appreciated.
Have you disconnected any earths?....
'98 M2 Razorback, it's a keeper.
-
- Site Admin
- Posts: 8591
- Joined: Wed Apr 15, 2009 5:17 pm
- Location: Manchester
Re: Ulysses - How to do a compression test with engine rotated.
Yes he has.
Mithered ta death.
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR
-
- Posts: 28
- Joined: Sun Oct 14, 2018 6:54 am
- Current ride: 2007 Ulysses
- Location: Elmswell Suffolk
Re: Ulysses - How to do a compression test with engine rotated.



Thank you
Turning over now
Rules are for the guidance of wise men and the obedience of fools.
-
- Posts: 10469
- Joined: Tue May 05, 2009 8:00 pm
- Current ride: X1 2001
- Location: southampton
-
- Posts: 28
- Joined: Sun Oct 14, 2018 6:54 am
- Current ride: 2007 Ulysses
- Location: Elmswell Suffolk
Re: Ulysses - How to do a compression test with engine rotated.
I don't dare to ask how you do a compression test as per the manual - with a warm engine.
Paul
Paul
Rules are for the guidance of wise men and the obedience of fools.
Who is online
Users browsing this forum: CommonCrawl [Bot] and 0 guests