Need to change my cylinder head gasket set (http://www.partstrain.com/ShopByDepartment/Cylinder_Head_Gasket_Set). Can i loosen the the timing belt and slip it off the cam without taking it off the crank, or does it all need to come off? Thanks for any info you can share.

Head Gasket (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/DirtyHeadValves.jpg) - about US$27 (that’s the photo of the old one).
Exhaust Gaskets (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/ExhaustSeals1.jpg) - Highly recommended replacement at the same time. See also: Exhaust Gaskets (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/ExhaustSeals2.jpg), Exhaust Gasket Close-up (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/ExhaustSeals3.jpg)
O-Ring for Starter Motor (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/StarterORing.jpg) - Highly recommended replacement at the same time
Check Studs and Nuts on your exhaust manifold. If very rusty, replace.
I highly recommend replacing all 4# M8 Exhaust Collar Bolts (3 external, 1 internal). they are alloy and for various reasons I broke one (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/EffectsofCopasliponTorquedBolts2.jpg) in the head torquing it up. It was probably my fault, (copaslip on fingers) but I'll never know for sure. Todd has read somewhere about pre-96's having a problem with soft alloys for these bolts. Mine's a '96 so who knows? For peace of mind I bought 4 new bolts. The Nuts and Studs inside the engine are steel and not a problem.
Valve Shims (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/HeadOffBucketsShims.jpg). What? Well if you're going to go in there and take off the cams, you may as well check and replace your Valve shims at the same time.
New Coolant. See the Coolant Change FAQ (http://faq.f650.com/FAQs/Coolant_Change_FAQ.htm) for type so you can drag out the inevitable water pump failure fix.
Lots of Cloths.
You don’t need to do an Oil Change, but it’s a good time to make it coincide with one. You will lose just a little Oil in the Head, maybe 50ml or so.
The Top Dead Centre Bolt (http://faq.f650.com/FAQs/Photos/HGasketValvePhotos/TDCBoltvsSparkPlugClose.jpg), so you can Lock the Piston at TDC and you don’t put your timing out when you put the Cams back.




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