cam chain to tight

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S

sparks

Joined
Sep 8, 2006
Messages
989
Location
Hayle Cornwall
Hi all,

You know when you get that all is going to well feeling, you know some has to go wrong well I've just hit it.

I've just totally rebuilt my 550 2004 engine every thing went fine until fitting the cam chain, cut the new chain Regina 66 links but when fitted loosely, ie no tensioner blade, the chain is tight, then when blade and tensioner are fitted even with the tensioner adjuster rod back into it's housing there is about 3mm pushing against the tensioner blade.

Has anyone had any problems with head gaskets being different thicknesses, because this can be the only reason to why it is so tight.

Regards

Sparks.
 
agree on the head gasket idea .

what about the length of the links in the chain you are using now in comparison to the old chain ?
 
Hi Whosahberg,

In desperation I removed the new head gasket and replaced it with the old one to see if that was the problem but no same problem.
Everything now is back as it was, when you put the chain over the cam sprocket the two ends don't just drop in one has to be pressed down this is what is giving the tension, I can't believe that this is how they are there is to much tension on the chain when you fit the tensioner.
The old chain is the same make DCR's say that this is the only type of chain they sell.

Anybody else out there that can shed any light on this problem.

Regards

Sparks.
 
sparks ..

husaberg has updated the 04 cam chain , they now use DID chains . you probably know that already . why not give the DID a try ?
 
Sometimes the chain does not fall correctly into the teeth of the lower sprocket, but I'm aware this comment may be considered an insult... Sorry, in that case!

Is the front follower mounted as it should?

There must be an easy/obvious explanation to this big deviance, once you have figured it out!
 
Hi Dr_ c,

Yes every thing is how it should be it's just tight to the extreme when you just spin the cam and bottom gear it is notchy you can feel the tightness of the teeth as the chain goes around the sprockets where as if you put the old chain back on even though it is well worn and repeat the operation it turns freely with no notchieness.

I have ordered a DID seeing as this is the current type fitted but there again I've always been a fan of DID I'll let you know how it goes when it arrives.

Regards

Sparks.
 
Could it be the new chain have different diameter of rollers?
 
then there is something wrong with the camchain mate. you have isolated it down to the chain.

the other one is: did you zero back the tensioner and let it take up the slack?

regards

Taffy
 
Eh up Taffy it was like this without blade and tensioner. If this had been a bike drive chain you would of said **** that's a bit tight mate.
I think the DID will solve the problem, like you said it is isolated to the chain, keeping fingers crossed.

Regards

Sparks.
 
Hi All,

New DID cam chain arrived today, slipped it over the sprockets and perfect just the sort of slackness you would expect to see about 5mm.
Also the DID chain has seamless rollers unlike the Regina, the DID also has it stamped on the links unlike the Regina chain which makes me think is the Regina chain actually made be Regina or is it shipped in from an other company.
So people beware if you buy Regina chain.

Regards

Sparks.
 
Good to hear, Sparks!
I have bought several OEM cam chains without any problems. When I investigated the "chain business" for a replacement, I understood that there are loads of different designs, which are very similar. I mean, it wouldn't be too surprising if another chain design has, accidentally, slipped into the bag...
 
Sparks, what tool did you use for riveting the chain?

Have been looking for the proper tool, but need to know for sure.

Thanks
 
Dr C, Le Frog,

Dr C yes that could be possible, I wonder how many other people have suffered this tightness, instead of the links saying Regina they have a letter M with a 3 inside it., but there is obviously a difference between the two either a slight difference in pitch or roller diameter is different it has to be one of the two.

Mr Froggy,

To rivet the link I have a 5lb billet of steel I put at one side of the link and with small ball hammer just burr the ends over, the metal is very soft some might say it's a bit crude but it does the job, but don't get to enthusiastic with the hammer or you will end up with a stiff link.

Regards

Sparks.
 

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