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Fredda

Put together a engine to XR600

7 posts in this topic

Broke my engine to my XR600 -93 couple of months ago. Camchain "jumped" over some sprockets on the camshaft. Have al parts now, but I need some help to put all stuff back in the right place. The things I have problem with is to get the camchain in right "order" so the camshaft would not hurt the valves and the piston and so it would work all well.

The thing is that I haven't split the enginge, I've only removed the cylinder top and the topcover (?). The camchain is linked together but I have to split the chain and "fastened" it again so I don't need to split the whole engine.

(sorry for my English, from Sweden...)

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Fredda..

I've never been in the engine on my XR but on other bikes I've been into the cam chain has a master link. Are you using the original chain? If so a new chain will *probably* come broken w/ a master link, requiring a rivet tool to peen the ends of the link once you have fished it into place.

Or I could be completely wrong :cry:

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I have a '94 XR600 that has been great to me, week in and week out, so I can't help you with the engine---yet. I just thought I'd let you know your english is better than 90% of the state of Georgia, where I live. I would try www.bajadesigns.com and www.thumper-racing.net or www.servicehonda.com Maybe they can help you over the phone. Good luck, Walter

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Broke my engine to my XR600 -93 couple of months ago. Camchain "jumped" over some sprockets on the camshaft. Have al parts now, but I need some help to put all stuff back in the right place. The things I have problem with is to get the camchain in right "order" so the camshaft would not hurt the valves and the piston and so it would work all well.

The thing is that I haven't split the enginge, I've only removed the cylinder top and the topcover (?). The camchain is linked together but I have to split the chain and "fastened" it again so I don't need to split the whole engine.

(sorry for my English, from Sweden...)

Dont worry about your typing. I can understand you better than alot of people who speak ONLY English.

Anyway, the easiest thing for me to recommend is to get a decent repair book.

For the cam chain, if you have a new one that acually has a master link, lucky you. You will not have to pull the clutch off to install it. What you need is a piece of wire you can attach to one end of the chain and feed under the crankshaft and back out the top. Then you just pull the wire through until you have both ends of the chain. Make sure its on the gear and secure the chain so it does not fall back in the engine.

To get the engine on Top Dead Center: Take out the plugs on the left side engine cover(as if you are sitting on the bike). Stick a wrench through the big center hole so you can turn the crankshaft. Look through the other one and you'll see a mark like a "T" or "Top". Align that with the other mark. Thats TDC.

To make sure the camshaft is aligned: There are two dots on the cam gear that have to align with the top surface of the head where the cover bolts down. I believe the cam lobes should be pointing toward the piston/downward.

*Before you go and put it all back together, lets see if anyone has anything to add or spots something I may have missed.*

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Thanks for all godd answers!

Helps a lot (acctually I got a service/manufactor manual, but it is copied and the German guy who did it only took the German pages and then I'm not so good in German I've got a so called problem:p)

Also wonder how I could see if the TENSIONER, CAM CHAIN is needed to be replaced by a new one.

(no 4 on: http://216.37.204.202/Honda_OEM/HondaDB.asp?Type=18&A=19&B=4&Action=O )

Edit: Were out and tock away the left enginecover. Saw the "T" mark, but there were another mark there aswell, a "F" Is that something to care about or is it for something else?

Secondly I also discover that it was some engine oil there, is it supposted to be there or is the seal (for the crankshaft) broken (or any other fault there)??

thanxx

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Also wonder how I could see if the TENSIONER, CAM CHAIN is needed to be replaced by a new one.

Edit: Were out and tock away the left enginecover. Saw the "T" mark, but there were another mark there aswell, a "F" Is that something to care about or is it for something else?

Secondly I also discover that it was some engine oil there, is it supposted to be there or is the seal (for the crankshaft) broken (or any other fault there)??

I think you can just pull the chain tensioner slider out once you relieve the spring pressure behind it. If its still in good shape, you can probably reuse it. If it has grooves in it or pieces missing, replace it.

You want the "T" mark, dont worry about the others. The oil is supposed to be there. The flywheel and stator are "wet" so they get engine oil to them. It saved Honda from needing a seal on the crankshaft and eliminated the possibility of that seal failing.

TDC

Cam alignment

The book says you can install the cam up or down as long as the gear is aligned properly. It will be easier to install the rocker cover if the lobes are down, though.

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