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[prodrag1320]

Falcon is just another warehouse place pushing product. Cyco makes them. I have used the tensioner shoe kit it works .. I am not a cyco fan so my opinion of the company is jaded.

But most times the older plate and pump are not in the best shape and the kit from SE is a very nice upgrade. The issues with the tensioner where not what the shoe is made out but pure poor design. SO if you want to do it again keep the set up.

I agree with GRC.. From a shop stand point no way,.. its not about the budget its about correcting the issue at hand. And its a simple deal to correct it .

actully the material the shoes are made from is the biggest problem.you can look at any of them,from barley worn or very worn & you`ll see little pip marks or holes in the shoes.the material is harder than the alluminum & starts doing damage as soon as they start wearing at all,so the nylon shoes are a good fix on a budget,but i agree the SE up grade or gear drive is a better idea

[grc]

Just an opinion based on circumstantial evidence, nothing actually proved scientifically, but I believe the original system's problems were threefold.  First, the material they chose for the shoes.  Second, the spring loaded feature.  Third, the lousy silent chain they chose to run the cams.  It seems that over the years from 1999 to 2006 Harley either changed chain suppliers, or the supplier just cheapened the crap out of their product.  Some of the side plates on the chains were sharp enough to draw blood if you snagged your finger on them, so you can imagine how well that worked with the shoe material that had a tendency to come out in chunks anyway.  Notice that Harley not only changed the shoe material and the method used to maintain tension, but they also changed to a true roller chain.

Note that with the kit I referenced earlier, you get the new shoe material and tensioning method, but the inner chain is still the original style.  I haven't heard of this being a problem for those who used this kit, but I thought it was worth a mention for the true paranoids among us.

JMHO - Jerry

[Ridgerunr]

While I don't want to get into an argument with shops that do this for a living, when the TC fist came out everyone told you needed a Delkron camplate cause the OE would flex/fail blah, blah and now we know that was a crock, but a lot of shops made good money with the hype. It's my understanding the longer the OE chains run the sharp edges get worn smooth and they don't eat the shoes as bad. One possible reason when combined with the newer shoe material ala Cyco, the old system works.

[twinotter]

On my 01 Dyna, the stock tensions shoes showed 35% wear at 23,000klms. I replaced them with new HD parts at the time (can you say bend over/ smile). I also used a trick becoming common then,and that was to highly polish the outer surface of the links.
I mirror polished the chain links,cleaned and reinstalled. An inspection at 43,000klms, showed no significant wear on either shoe, maybe 5%. Both shoes where clean,with no pitting. Problem solved from my point of view. This engine was run with a supercharger, rev limit at 6500rpm, and used hard at 12 lbs boost. I changed oil at 5000klms. fwiw twinotter

[INDEPENDENT_1]

[/ quote]                                                                                                                                                                          I am assuming that the 2007 and latter 110 motors have the improved version from Harley??
[/quote]

They are indeed largely improved but I have seen a small amount of early failures with the hydraulic shoes also. Cyco also offers replacement shoes for the the late model system as well. I have not had a chance to inspect the Cyco hydraulic replacement shoes yet but they are made from the same material used on the early style replacement shoes they offer. I have also seen one case of the hydraulic housing ID varying and the replacement Cyco shoes not fitting in the stock hydraulic housing properly and having a binding issue between the OD of the replacement shoe and the ID of the stock housing. After purchasing a new housing and shoe from HD, there was a difference in the of the ID's of the two stock shoe housings I measured.

With the crank runout numbers seen in today's late model engines running the hydraulic setup from the factory, it is usually the most practical setup. If the crank has been reworked properly however, I am still a fan of gear drives. Of course the cost of gears nowadays is a factor that has to be considered by many also so again, in many cases, the hydraulic setup is very common and practical approach of addressing the issue.

[johnmowcop]

Further to the original post by the OP.

Below is a note from the owner and repairer of the twin cam tensioner shoe replacement, standard ones replaced by the Cyco shoes.. Also attached should be some photographs, which following earlier comments when I attached a photograph, I have tried to reduce the memory size.
 
He is particularly displeased about the left hand camshaft journal having a small "unground" blemish. It appears that a small area of the journal is below the diameter of the rest of the journal and does not appear to have been ground to size during machining. If he puts a straight edge across the journal it is a few microns undersize and can just about see daylight. If you look at the top journal on the left hand cam it is the grey area towards the bottom of the journal at 6 to 7 o'clock. Has anyone else come across this? It does seem strange to have passed Quality Control or in old parlance the checkers.

This may take a couple of posts, it has just bounced it back for being too big, I will try this and follow with another for two more photographs.


Hello John, photos show work in progress on the new tensioner shoes.
1. spring clip and elastic bands to keep followers up.
2. condition of old shoes removed.
3. new shoes fitted.
4. note blemish on cam (needle roller bearing) track. Finish grinding leaves shallow remains of forging not of sufficient diameter to provide full bearing contact at this spot. No groove or `pick-up` on rest of track, so going to refit it. Crap QA.


Will keep you posted, (painting door frames tomorrow - what fun; Jeans revenge).
Jim.

[johnmowcop]

More Pic's

[johnmowcop]

More pic's

[johnmowcop]

Last one,l there has got to be a way of posting more than one photograph at a time. Willing to learn of someone can offer help.