| Author |
Message |
    
realslimshady
Member
Username: realslimshady
Post Number: 37
Registered: 11-2008
| | Posted on Sunday, October 11, 2009 - 03:40 pm: | 
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Hi
can anyone tell me the diameter of the bolts-item 41 in this drawing-%2C0200.aspx,http://www.marinepartseurope.com/en/volvo-penta-explodedview-774089 0-04A-04A,,,0200.aspx
attaching the bellhousing to the transom shield?
Mine are completely corroded and I will have to drill them  |
El Pescador
Senior Member
Username: el_pescador
Post Number: 4984
Registered: 02-2006
| | Posted on Sunday, October 11, 2009 - 10:24 pm: |
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3/8". |
Ricardo E.
Advanced Member
Username: ricardomarine_vp
Post Number: 668
Registered: 03-2009
| | Posted on Sunday, October 11, 2009 - 11:49 pm: |
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3/8" NC galvanized and are a special "tap" bolt if you purchase them through a fastener company.
Center punch the head as close to center as you can. Drill the heads off, then some.
Sacrifice the clamping collar if you must by drilling and splitting it if need be....... they fall into the "dime/dozen" category around here.
Note that the collar will have three additional holes (9 total). These are jack thread holes for jacking it away from the flywheel cover.
These too are 3/8" NC.
. |
realslimshady
Member
Username: realslimshady
Post Number: 38
Registered: 11-2008
| | Posted on Monday, October 12, 2009 - 03:12 pm: |
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Sounds like you have some experience of this Ricardo-how tough are the bolts? Do I need to be tooled up with a dozen drill bits or what? |
realslimshady
Member
Username: realslimshady
Post Number: 39
Registered: 11-2008
| | Posted on Monday, October 12, 2009 - 03:26 pm: |
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Sacrifice the clamping collar if you must by drilling and splitting it if need be....... they fall into the "dime/dozen" category around here.
Really? Not around here they don't...and a quick google shows 200 bucks plus... |
El Pescador
Senior Member
Username: el_pescador
Post Number: 4986
Registered: 02-2006
| | Posted on Monday, October 12, 2009 - 03:46 pm: |
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If you want to save the clamping ring, then just use a Dremel or similar cutting tool and cut off the bolt heads. Or even better, use a drill bit 3/8" or slightly larger to drill in the middle of each bolt's head: the heads will fall off once you hit the bolt shank. Once you drill all the bolts, you can remove the clamping ring, then you should be able to remove what is left of the bolts (perhaps even without the need of applying any heat). |
realslimshady
Member
Username: realslimshady
Post Number: 40
Registered: 11-2008
| | Posted on Monday, October 12, 2009 - 03:52 pm: |
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That's the plan, El P-wish me luck! |
El Pescador
Senior Member
Username: el_pescador
Post Number: 4987
Registered: 02-2006
| | Posted on Monday, October 12, 2009 - 07:26 pm: |
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You'll do fine. Just remember to start drilling with a smaller drill bit.  |
realslimshady
Member
Username: realslimshady
Post Number: 41
Registered: 11-2008
| | Posted on Wednesday, October 14, 2009 - 01:03 pm: |
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Success! And thanks for the tip re the 3 threaded holes-invaluable.
Cheers again guys. |
El Pescador
Senior Member
Username: el_pescador
Post Number: 4992
Registered: 02-2006
| | Posted on Wednesday, October 14, 2009 - 01:08 pm: |
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You are welcome. Now, when you install the new ones make sure you coat them (shanks and threads)with "Quicksilver Perfect Seal" or similar compound . This way, you (or the next owner of your boat) will not have to face the same problem again. |
