Engine bolts tight. - Supposed to be? - SV650.org

Mark_h · 10-07-12, 01:54 PM

Just decided to fit the crash bobbins that have been sat in my garage for the last 4+ years. These fit onto the engine mounting bolt that goes through the front cylinder.

Started undoing the VERY tight bolt but after a turn or so it was still pretty tight. Are these self-locking bolts or would this suggest something else is wrong.

If they are self locking bolts do I need to do anything to the thread before I put a standard M10 back in?

Don't want to get the bolt out just to find the thread's buggered or something is misaligned which will prevent me getting the bobbin or the original bolt back in.

For now I have wound it back in, torqued it back up and put the bobbins back on the shelf.

Anyone know for sure?

PS, if your response is a guess or assumption please come clean in your post as I really don't want to enter a world of pain based on someone's well intentioned guess.

Ta,
Mark

PS, I hold Fallout entirely responsible for any bobbin related issues as it was his thread's revival that caused me to hunt out the bobbins in the first place. That boy's going to be in trouble!

squirrel_hunter · 10-07-12, 02:11 PM

Which model?

Mark_h · 10-07-12, 02:16 PM

Quote:

Originally Posted by squirrel_hunter

Which model?

K3 SV1000 naked 14mm shiny bolts are the ones in question.

squirrel_hunter · 10-07-12, 02:20 PM

Can't help with the SV1000 only done the SV650 and I don't know if there is a difference.

Mark_h · 10-07-12, 02:21 PM

Quote:

Originally Posted by squirrel_hunter

Can't help with the SV1000 only done the SV650 and I don't know if there is a difference.

Were the 650 ones tight all the way out?

squirrel_hunter · 10-07-12, 02:45 PM

They can be it depends on how tight you mean. They may be supporting the weight of the engine if its been knocked around a bit if you see what I mean. I have also removed bolts that have oxidised which hasn't helped ease them out. Also I should add I presume you mean the bolts either side of the cylinder, that go into, not through the cylinder. The bolts that go through are central and are through the cases, a bolt with a locking nut on the opposite end.

But on the 650 there is nothing particularly special about the bolts on the cylinder from what I can see. Depends on the history of the bike as if the engine has been out, they might not be the original bolts in there (I have seen this before). As for doing anything to the threads before putting them back, only some copper grease, no thread lock needed just torque.

But this has only been my experience with the SV650 and not the SV1000

Mark_h · 10-07-12, 02:47 PM

Thanks for that. I'll hold fire a while just to see if any other Guru has the answer. Just didn't feel right to me. With an 18" torque wrench it was still pretty tight after at least one complete turn.

squirrel_hunter · 10-07-12, 02:50 PM

Don't use your torque wrench to undo tight bolts I was always told. Thats why they invented the 24" Breaker Bar...

Mark_h · 10-07-12, 02:55 PM

Problem is it's torque wrench or 3 foot bar on 1/2 inch socket driver which is my usual last resort approach. The 9"(ish) 1/2inch ratchet driver was not enough to shift it.

10-07-12, 03:17 PM

Your torque wrench is only designed for tightening bolts. Use it to undo stuff you'll feck it (if you haven't already).

10-07-12, 01:54 PM	#1
Mark_h Member Mega Poster Join Date: Aug 2005 Location: Fleet, Hampshire Posts: 2,448	Engine bolts tight. - Supposed to be? Just decided to fit the crash bobbins that have been sat in my garage for the last 4+ years. These fit onto the engine mounting bolt that goes through the front cylinder. Started undoing the VERY tight bolt but after a turn or so it was still pretty tight. Are these self-locking bolts or would this suggest something else is wrong. If they are self locking bolts do I need to do anything to the thread before I put a standard M10 back in? Don't want to get the bolt out just to find the thread's buggered or something is misaligned which will prevent me getting the bobbin or the original bolt back in. For now I have wound it back in, torqued it back up and put the bobbins back on the shelf. Anyone know for sure? PS, if your response is a guess or assumption please come clean in your post as I really don't want to enter a world of pain based on someone's well intentioned guess. Ta, Mark PS, I hold Fallout entirely responsible for any bobbin related issues as it was his thread's revival that caused me to hunt out the bobbins in the first place. That boy's going to be in trouble! __________________ Don't want to be the quickest; don't want to be the best; just want to be the one having the most fun. XL125Varadero -> Curvy SV650N-Y -> SV1000N-K3 -> Multistrada 1200s Twin-tastic stuff. Minister for Sustainability *Aliquid prudentissimus delectabiles et intelligentes in adamasset lingua.*

10-07-12, 02:11 PM	#2
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: Engine bolts tight. - Supposed to be? Which model? __________________ "A little enthusiastic?" May I add here, GG is awesome and I think I am in love with Stretchie...he rocks my world! SH2 \| 2MA \| GROM \| YSR

10-07-12, 02:20 PM	#4
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: Engine bolts tight. - Supposed to be? Can't help with the SV1000 only done the SV650 and I don't know if there is a difference. __________________ "A little enthusiastic?" May I add here, GG is awesome and I think I am in love with Stretchie...he rocks my world! SH2 \| 2MA \| GROM \| YSR

10-07-12, 02:45 PM	#6
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: Engine bolts tight. - Supposed to be? They can be it depends on how tight you mean. They may be supporting the weight of the engine if its been knocked around a bit if you see what I mean. I have also removed bolts that have oxidised which hasn't helped ease them out. Also I should add I presume you mean the bolts either side of the cylinder, that go into, not through the cylinder. The bolts that go through are central and are through the cases, a bolt with a locking nut on the opposite end. But on the 650 there is nothing particularly special about the bolts on the cylinder from what I can see. Depends on the history of the bike as if the engine has been out, they might not be the original bolts in there (I have seen this before). As for doing anything to the threads before putting them back, only some copper grease, no thread lock needed just torque. But this has only been my experience with the SV650 and not the SV1000 __________________ "A little enthusiastic?" May I add here, GG is awesome and I think I am in love with Stretchie...he rocks my world! SH2 \| 2MA \| GROM \| YSR

10-07-12, 02:47 PM	#7
Mark_h Member Mega Poster Join Date: Aug 2005 Location: Fleet, Hampshire Posts: 2,448	Re: Engine bolts tight. - Supposed to be? Thanks for that. I'll hold fire a while just to see if any other Guru has the answer. Just didn't feel right to me. With an 18" torque wrench it was still pretty tight after at least one complete turn. __________________ Don't want to be the quickest; don't want to be the best; just want to be the one having the most fun. XL125Varadero -> Curvy SV650N-Y -> SV1000N-K3 -> Multistrada 1200s Twin-tastic stuff. Minister for Sustainability *Aliquid prudentissimus delectabiles et intelligentes in adamasset lingua.*

10-07-12, 02:50 PM	#8
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: Engine bolts tight. - Supposed to be? Don't use your torque wrench to undo tight bolts I was always told. Thats why they invented the 24" Breaker Bar... __________________ "A little enthusiastic?" May I add here, GG is awesome and I think I am in love with Stretchie...he rocks my world! SH2 \| 2MA \| GROM \| YSR

10-07-12, 02:55 PM	#9
Mark_h Member Mega Poster Join Date: Aug 2005 Location: Fleet, Hampshire Posts: 2,448	Re: Engine bolts tight. - Supposed to be? Problem is it's torque wrench or 3 foot bar on 1/2 inch socket driver which is my usual last resort approach. The 9"(ish) 1/2inch ratchet driver was not enough to shift it. __________________ Don't want to be the quickest; don't want to be the best; just want to be the one having the most fun. XL125Varadero -> Curvy SV650N-Y -> SV1000N-K3 -> Multistrada 1200s Twin-tastic stuff. Minister for Sustainability *Aliquid prudentissimus delectabiles et intelligentes in adamasset lingua.*

10-07-12, 03:17 PM	#10
-Ralph- Guest Posts: n/a	Re: Engine bolts tight. - Supposed to be? Your torque wrench is only designed for tightening bolts. Use it to undo stuff you'll feck it (if you haven't already).

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