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Post by petecooper on May 22, 2007 13:17:29 GMT 1
Why is that simple jobs never are? The other day I thought to check my impeller on my Yanmar 1GM10. Dug out the boat tool kit and found that I had not got the correct sized spanner to undo the three bolts holding the cover. Went home, I only live 5 mins from marina, got spanners went back. Undid bolts removed plate, all seems well so I refitted the plate. Now the tricky bit. One of the bolts is hidden by the crankshaft pulley but could I get the thread started? The usual bad language didn't seem to do the trick. Now I digress a moment here, under my engine are vertical ribs which form a square moulding. When I change the oil filter, which screws on horizontally, the oil from the filter drops into this section and there it stays until I can be bothered to clean it out. Any way to cut a long story short guess where the bolt landed when I dropped it? So instead of being just slightly damp my hands are now covered in slippy old engine oil which surprisingly didn't make things any easier. After much perseverance I got the wee bugger back in and all is once more well.
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Post by jimbuoy on May 22, 2007 13:24:53 GMT 1
Why is that simple jobs never are? The other day I thought to check my impeller on my Yanmar 1GM10. Dug out the boat tool kit and found that I had not got the correct sized spanner to undo the three bolts holding the cover. Went home, I only live 5 mins from marina, got spanners went back. Undid bolts removed plate, all seems well so I refitted the plate. Now the tricky bit. One of the bolts is hidden by the crankshaft pulley but could I get the thread started? The usual bad language didn't seem to do the trick. Now I digress a moment here, under my engine are vertical ribs which form a square moulding. When I change the oil filter, which screws on horizontally, the oil from the filter drops into this section and there it stays until I can be bothered to clean it out. Any way to cut a long story short guess where the bolt landed when I dropped it? So instead of being just slightly damp my hands are now covered in slippy old engine oil which surprisingly didn't make things any easier. After much perseverance I got the wee bugger back in and all is once more well. I always have to smile at how easy service manuals make these thinks sound. "unscrew retaining bolts"... no mention of hard to get at seized up bolts whose heads are rounded and covered in grease and oil! Jim |
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Post by NigeL on May 22, 2007 15:07:15 GMT 1
It is a well known fact that anything remotely connected with Marine is :
Designed to get all as covered in sh*te as possible.
Designed to be as difficult to solve as possible.
Designed to be in as small a physical space as possible using a babys little finger as gauge to ensure problem.
Finally all designs are made at one of 2 times during the week : a) first thing Monday morning after a screaming row over the weekend and suffering a hangover .... or b) in a rush on a friday afternoon trying to get finished and out the door for another weekend ...
Now was it any surprise ?
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Post by Gandy on May 22, 2007 19:38:33 GMT 1
The last two spanner-type jobs we've had to do afloat have been similar, with unexpected tools needed. Who'd design an engine where the starter motor bolts can't be accessed with a socket or a ring-spanner, and are so tight you bend one of your open-enders? Who'd have expected a fuel lift pump to be fitted with Allen screws (the only ones on the whole engine)?
I think these are put in to test us, or is it just to amuse the designers?
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Post by NigeL on May 22, 2007 20:17:47 GMT 1
The last two spanner-type jobs we've had to do afloat have been similar, with unexpected tools needed. Who'd design an engine where the starter motor bolts can't be accessed with a socket or a ring-spanner, and are so tight you bend one of your open-enders? Who'd have expected a fuel lift pump to be fitted with Allen screws (the only ones on the whole engine)? I think these are put in to test us, or is it just to amuse the designers? Here's Ship Designers for you ........... On a tanker often the pipelines are above deck on pedestal frames. Bit like low goal-posts. That height is carefully calculated to coincide with your head and skid-lid. Don't wear a skid-lid (helmet) and nearly always you are ok. Put one on and bang bang bang every time ! Bolts in deck just where everyone would step after stepping over a breakwater or other .... Why is that when a nut or bolt is tight, the only spanner you can get on is an open-ender ... and that slips and chunks of skin get graunched out of your hands !! To the accompaniment of strange Viking Language !! |
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