Good afternoon...it's your friendly PITA here...So, I went out again to check the mega fuse and found as follows...
With Battery connected as it should and measuring between +/- terminals I had 11.94v. Then placing probe at the end of the +ve lead but BELOW the mega...had millivolts...I now presume the mega to have blown? Sorry, but you have been such a help and as everywhere is shut still due to NY day I'm simply trying to put my mind at ease?
 
Schildy said:
Good afternoon...it's your friendly PITA here...So, I went out again to check the mega fuse and found as follows...
With Battery connected as it should and measuring between +/- terminals I had 11.94v. Then placing probe at the end of the +ve lead but BELOW the mega...had millivolts...I now presume the mega to have blown? Sorry, but you have been such a help and as everywhere is shut still due to NY day I'm simply trying to put my mind at ease?
Click to expand...
Oh trust me you are not a pita various people have been given info ignored it and done the opposite where they can't understand why it still isn't fixed.
 
TBH I can't remember exactly, it's 18 or 21 or 24mm, there's a ring of smaller bolts around it that hold the pulley onto the crank, don't try turning it with them, you'll shear 'em off.... You shouldn't need anything too long to rotate it, my 1/2" hand ratchet is about 250mm long and that's sufficient - plus you don't want anything that's going to get snagged on everything else down there!

If you're struggling, maybe just leave it to your repairer? It's not worth the cost of the tools and the risk of unintentional damage to coolant pipes etc. if you're not 100% confident & familiar with what you're doing.
 
Graculus said:
TBH I can't remember exactly, it's 18 or 21 or 24mm, there's a ring of smaller bolts around it that hold the pulley onto the crank, don't try turning it with them, you'll shear 'em off.... You shouldn't need anything too long to rotate it, my 1/2" hand ratchet is about 250mm long and that's sufficient - plus you don't want anything that's going to get snagged on everything else down there!

If you're struggling, maybe just leave it to your repairer? It's not worth the cost of the tools and the risk of unintentional damage to coolant pipes etc. if you're not 100% confident & familiar with what you're doing.
Click to expand...
I can se it, I can reach it, it's a 21mm...the ONE socket I don't have as it's out at my caravan!!! garages open tomorrow...I'll leave it til then and hope they can recover and take a proper look. Thanks again Graculus...you're a star sir.
 
Schildy said:
I can se it, I can reach it, it's a 21mm...the ONE socket I don't have as it's out at my caravan!!! garages open tomorrow...I'll leave it til then and hope they can recover and take a proper look. Thanks again Graculus...you're a star sir.
Click to expand...
Here's a quick question for you (and I haven't tried it before I speak with you) IF I was to 'bypass' the mega fuse would that allow the engine to crank do you think?
 
Schildy said:
Here's a quick question for you (and I haven't tried it before I speak with you) IF I was to 'bypass' the mega fuse would that allow the engine to crank do you think?
Click to expand...

Possibly but why did the fuse blow? Without the fuse you might kill something else. I'd replace the fuse, maybe that will work or maybe it will blow again. If it blows again then you need to start pulling fuses and relays and then replace it and see what blows as you reconnect stuff. Might be the earth connection (is there one under the wing on your model?) or something that draws amps when seized like an air suspension compressor.
 
Schildy said:
Here's a quick question for you (and I haven't tried it before I speak with you) IF I was to 'bypass' the mega fuse would that allow the engine to crank do you think?
Click to expand...
Personally I wouldn't, whatever's caused it to blow (probably the alternator) is still connected and will be able to draw an unrestricted amount of current, potentially causing damage to the battery, wiring harness and engine earth strap. If you were to disconnect the heavy cable from the alternator, then yes, try it.
 
Graculus said:
Personally I wouldn't, whatever's caused it to blow (probably the alternator) is still connected and will be able to draw an unrestricted amount of current, potentially causing damage to the battery, wiring harness and engine earth strap. If you were to disconnect the heavy cable from the alternator, then yes, try it.
Click to expand...
That's fair enough, I just wanted to see IF it would turn it quickly but agree it could cause more damage than good!
 
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