Ulysses - How to do a compression test with engine rotated.

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Bublnsqueak
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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.

Postby Bublnsqueak » Thu May 30, 2019 11:07 am

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.
Rules are for the guidance of wise men and the obedience of fools.

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rik
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Re: Ulysses - How to do a compression test with engine rotated.

Postby rik » Thu May 30, 2019 1:27 pm

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.

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Maz
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Re: Ulysses - How to do a compression test with engine rotated.

Postby Maz » Thu May 30, 2019 2:16 pm

Yes he has.
Mithered ta death.
92 MB
96 S2T
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Bublnsqueak
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.

Postby Bublnsqueak » Tue Jun 04, 2019 12:16 pm

:headbang: :headbang: :headbang:

Thank you

Turning over now
Rules are for the guidance of wise men and the obedience of fools.

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Nutah
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Re: Ulysses - How to do a compression test with engine rotated.

Postby Nutah » Tue Jun 04, 2019 6:39 pm

:yup:
Feros Ferio

Bublnsqueak
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.

Postby Bublnsqueak » Thu Jun 06, 2019 11:23 pm

I don't dare to ask how you do a compression test as per the manual - with a warm engine.

Paul
Rules are for the guidance of wise men and the obedience of fools.


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