Front cylinder head - SV650.org

DaveW_42 · 26-04-11, 10:13 AM

After a replacement for mine which has a tap snapped off in it. Prob cheaper to replace the whole thing than to spend on tap removal kits, etc.
It's a K4 but I'm pretty sure other pointy years (04 to 06 with the one plug) will be fine. Don't need any of the innerds, just the case.
Anyone have one knocking about?

Cheers,
Dave

squirrel_hunter · 26-04-11, 07:16 PM

If you wanted one from a curvy I should be able to help. Though I would think that removing the broken tap/ stud would be cheaper and quicker than replacing the whole head as have you seen the prices of head gaskets?

DaveW_42 · 27-04-11, 02:29 PM

I've got a tap removal tool on order... if I can fix this for £14 I'll be well happy...
Fingers crossed.

27-04-11, 06:41 PM

worth trying a bit of heat when you try to remove it , may make all the difference.

29-04-11, 09:11 PM

just checked mine out and the thread is 25mm deep ,as the hole is in a raised area of casting you could easily afford to cut the alloy back by 5mm exposing the tap sufficient to get some grips on it ,if your tap extractor doesn't work.
You would still have a good 15mm of thread allowing for the fact that the last couple of mm of any blind hole can't be tapped.

26-04-11, 10:13 AM	#1
DaveW_42 Member Join Date: May 2006 Location: Biggleswade, Beds Posts: 301	Front cylinder head After a replacement for mine which has a tap snapped off in it. Prob cheaper to replace the whole thing than to spend on tap removal kits, etc. It's a K4 but I'm pretty sure other pointy years (04 to 06 with the one plug) will be fine. Don't need any of the innerds, just the case. Anyone have one knocking about? Cheers, Dave __________________ K4 trackbike, a black K8 S loaded with my spares and a 1989 CBR 400 TriArm with all the trimmings. Last edited by DaveW_42; 26-04-11 at 10:19 AM.

26-04-11, 07:16 PM	#2
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,570	Re: Front cylinder head If you wanted one from a curvy I should be able to help. Though I would think that removing the broken tap/ stud would be cheaper and quicker than replacing the whole head as have you seen the prices of head gaskets? __________________ "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

27-04-11, 02:29 PM	#3
DaveW_42 Member Join Date: May 2006 Location: Biggleswade, Beds Posts: 301	Re: Front cylinder head I've got a tap removal tool on order... if I can fix this for £14 I'll be well happy... Fingers crossed. __________________ K4 trackbike, a black K8 S loaded with my spares and a 1989 CBR 400 TriArm with all the trimmings.

27-04-11, 06:41 PM	#4
warmshed Guest Posts: n/a	Re: Front cylinder head worth trying a bit of heat when you try to remove it , may make all the difference.

29-04-11, 09:11 PM	#5
all the gear Guest Posts: n/a	Re: Front cylinder head just checked mine out and the thread is 25mm deep ,as the hole is in a raised area of casting you could easily afford to cut the alloy back by 5mm exposing the tap sufficient to get some grips on it ,if your tap extractor doesn't work. You would still have a good 15mm of thread allowing for the fact that the last couple of mm of any blind hole can't be tapped.

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