Author Topic: Final engine bolt(s) removal question ?  (Read 668 times)

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Final engine bolt(s) removal question ?
« on: November 10, 2020, 08:40:41 PM »
I have removed the sump & oil pick up strainer all of the upper  engine brackets are out. I have undone the rocker cover bolts in readiness for engine final stage lift out.

Engine  is now being supported by what looks like one long rear lower shaft plus a pair front lower bolt(s) that appear to screw into the engine separately?

I have lots of blocks of wood if I need to do some sort of support when I remove the last bolts.

Bearing in mind the lifting of the engine itself is there a good way/order  to remove the last of the engine support bolts
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Orcade-Ian

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Re: Final engine bolt(s) removal question ?
« Reply #1 on: November 10, 2020, 09:02:55 PM »
I prefer to remove the cam cover, cam, head and barrels while the engine is still in the frame - makes it much lighter and stops it wriggling around when removing the head bolts.  After that, the two front bolts with the sump resting on a suitable wooden block.
Then the remaining long bolt at the rear - usually the top one for me.
Very important:  the lower front bolts are different lengths - the longer one MUST NOT be fitted at the side where the main oil gallery plug is - it WILL puncture the case.

Ian

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Re: Final engine bolt(s) removal question ?
« Reply #2 on: November 11, 2020, 04:51:51 AM »
I prefer to remove the cam cover, cam, head and barrels while the engine is still in the frame - makes it much lighter and stops it wriggling around when removing the head bolts.  After that, the two front bolts with the sump resting on a suitable wooden block.
Then the remaining long bolt at the rear - usually the top one for me.
Very important:  the lower front bolts are different lengths - the longer one MUST NOT be fitted at the side where the main oil gallery plug is - it WILL puncture the case.

Ian

Thanks for the tip about the lower front bolts I will be sure to label the bots when I take them out.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Laverda Dave

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Re: Final engine bolt(s) removal question ?
« Reply #3 on: November 11, 2020, 10:58:34 AM »
When the time comes to putting the engine back in your shinny newly painted frame the best way to do it is to place the engine on its side and place the frame over it. You need to leave the sump off, I replaced the sump pan before taking the photo. Keep the sidestand off as well until the engine is in otherwise it gets in the way. If you put the forks and swing arm on before placing over the engine you can pop the wheels back on whilst it's on the floor and lift it up as one complete unit.it is a two person job though but much easier and no chance of damage to the frame paint.
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Online McCabe-Thiele (Ted)

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Re: Final engine bolt(s) removal question ?
« Reply #4 on: November 11, 2020, 11:12:32 AM »
Another great tip thanks. Ted
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline SeanFD

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Re: Final engine bolt(s) removal question ?
« Reply #5 on: November 16, 2020, 10:15:50 AM »
I used a length of M10 (or was it M12) threaded rod through the mounting lugs front and rear. With a strong assistant it was quite ease to get the engine out and in.

I had to jiggle it a bit taking it out, so left off the rocker cover and breather when reinstalling it and wrapped some bubble-wrap around the frame, just in case. And of course left sump off too.
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Offline steven400/4

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Re: Final engine bolt(s) removal question ?
« Reply #6 on: November 18, 2020, 07:54:48 PM »
no need for wood block engine is wider than the frame so it will rest on the frame
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Online McCabe-Thiele (Ted)

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Re: Final engine bolt(s) removal question ?
« Reply #7 on: November 18, 2020, 07:58:10 PM »
I used a length of M10 (or was it M12) threaded rod through the mounting lugs front and rear. With a strong assistant it was quite ease to get the engine out and in.

I had to jiggle it a bit taking it out, so left off the rocker cover and breather when reinstalling it and wrapped some bubble-wrap around the frame, just in case. And of course left sump off too.

I like that method - sort of lifting it out with stretcher handles.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

 

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