Guide to replacing the crank cases? - SV650.org

12-09-09, 11:35 AM

I'm getting to the hard part of my SV rebuild project now...

Was going to drop in another engine in that I had but wanted to keep the original engine due to the low miles on it.

Anyways... the question, how hard is it to change the cases on a carb'd engine and what online guides are around? got a haynes manual but it always mamages to confuse the hell out of me!!

any help is really appriciated

TSM · 12-09-09, 12:13 PM

why?? the other engine will come complete anyway

its a fair bit of work and several parts will be needed

fastdruid · 12-09-09, 12:27 PM

I don't understand why you are asking the question, if the original engine is low mileage then use that. It's a *lot* of work to rebuild an engine.

If you mean the side covers then that's easy but will (ideally) need new gaskets.

Druid

13-09-09, 03:45 PM

The clutch cover is very easy to change (I did mine in about 10 minutes last week), the engine casings should be pretty easy. I can lend you a haynes manual for a while if you need a hand.

TSM · 13-09-09, 04:36 PM

Quote:

Originally Posted by chakraist

The clutch cover is very easy to change (I did mine in about 10 minutes last week), the engine casings should be pretty easy. I can lend you a haynes manual for a while if you need a hand.

ok, so heads/cylinders/flywheel/clutch/starter all need to be taken off first to be able to split the engine casings in half, then put it back together you will need new head/clutch/alternator gaskets at least

yeh easy, can do it in 1h...

jambo · 14-09-09, 12:22 AM

As above really. The clutch cover / side covers can be changed easily with an 8mm socket. The main engine cases require a full strip / rebuild of the engine.

Your shout

Jambo

punyXpress · 14-09-09, 12:03 PM

If you REALLY ARE going to change the cases, do it as a pair.
They are usually machined as a pair

squirrel_hunter · 14-09-09, 12:50 PM

Yep splitting the cases hasn't been to difficult for me so far proving you have the right tools (alternator puller, and clutch holder). Now getting them back together is another thing…

If you want any photos I’ve got loads that I took while taking mine apart and I’m about to start tearing down a spare engine to salvage the clutch and crank for my rebuild so any I don’t have can be taken here. But if it’s just the covers then that should be far simpler to do.

12-09-09, 11:35 AM	#1
Andy Jeffries Guest Posts: n/a	Guide to replacing the crank cases? I'm getting to the hard part of my SV rebuild project now... Was going to drop in another engine in that I had but wanted to keep the original engine due to the low miles on it. Anyways... the question, how hard is it to change the cases on a carb'd engine and what online guides are around? got a haynes manual but it always mamages to confuse the hell out of me!! any help is really appriciated

12-09-09, 12:13 PM	#2
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	Re: Guide to replacing the crank cases? why?? the other engine will come complete anyway its a fair bit of work and several parts will be needed __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

12-09-09, 12:27 PM	#3
fastdruid Member Mega Poster Join Date: Jul 2003 Location: W Mids Posts: 2,037	Re: Guide to replacing the crank cases? I don't understand why you are asking the question, if the original engine is low mileage then use that. It's a lot of work to rebuild an engine. If you mean the side covers then that's easy but will (ideally) need new gaskets. Druid __________________ '00 SV700S - '94 RVF400R - '97 RVF400R - '88 VFR750F

13-09-09, 03:45 PM	#4
chakraist Guest Posts: n/a	Re: Guide to replacing the crank cases? The clutch cover is very easy to change (I did mine in about 10 minutes last week), the engine casings should be pretty easy. I can lend you a haynes manual for a while if you need a hand.

14-09-09, 12:22 AM	#6
jambo Member Mega Poster Join Date: Aug 2003 Location: Croydonia Posts: 5,376	Re: Guide to replacing the crank cases? As above really. The clutch cover / side covers can be changed easily with an 8mm socket. The main engine cases require a full strip / rebuild of the engine. Your shout Jambo __________________ Modern motorcycles are bloody brilliant, enjoy it while we can

14-09-09, 12:03 PM	#7
punyXpress Member Mega Poster Join Date: Feb 2008 Location: Riding, North Posts: 2,664	Re: Guide to replacing the crank cases? If you REALLY ARE going to change the cases, do it as a pair. They are usually machined as a pair __________________ Was: K2 naked in rapid yellow - gone to a better? place Now: Street Triple R

14-09-09, 12:50 PM	#8
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: Guide to replacing the crank cases? Yep splitting the cases hasn't been to difficult for me so far proving you have the right tools (alternator puller, and clutch holder). Now getting them back together is another thing… If you want any photos I’ve got loads that I took while taking mine apart and I’m about to start tearing down a spare engine to salvage the clutch and crank for my rebuild so any I don’t have can be taken here. But if it’s just the covers then that should be far simpler to do. __________________ "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

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