why remove the crank sensor when changing oil???
 

as above is it to gain oil pressure before 1st start??

or is it cam sensor my bad?? do you h=just disconect just wondered why this needs to be done

It is the crank sensor BUT this topic open up a can of worms.
imo it doesn't have to be done but lots of people do, lots of people don't.
My garage doesn't and i've never had a problem.

imo if you are worried the disconnect it simply as.

The oil pick up tube has air in it and the cranking without the sensor purges the system is the main reasoning behind it (i think)

You should pre fill the oil filter though (i'm not sure if anyone disagrees with that :) )

Great,you had to ask this question !!!!!!!

awaits a 3 page thread on oil changing again

I do :)

My oil filter is located behind my drivers headlight and is fitted with the access hole pointing downwards so if i pre-filled my oil filter,well,it would be empty by the time i had screwed it on.

touches wood in the last 3 yrs and 4 oil changes no issues yet :luxhello:

But in your case the oil filter isn't in the standard position:lol1:

and as you'ver pointed out you've had no problems.

It's when it comes down to someone having a problem (oil changes being a popular choice:lol1:) that's when the discussion gets heated about what you should or should not do :)

my thoughts were if it was after an engine rebuild you did the crank sensor thingy but i do agree on pre filling the oil filter.

If you have inverted your oil filter, you need a filter suitable for that position, i.e. a filter with an anti-drainback valve which will ensure that oil is retained in the filter ready for the next start, rather than emptying when the engine stops and having to be filled when the engine is started. The difference between the two types of filter can be seen if you look at the holes around the edge of the filter. The anti-drainback type has a plastic disc fitted inside which is the non-return valve; the standard filter doesn't.