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Twin Cam 88 Cam tensioners cam plate upgrade or just replace the spring tensioners

39K views 40 replies 15 participants last post by  Brand'd  
#1 ·
Seems Harley is steering us 99-06 twin cam owners to upgrade to Screaming Eagle Cam plate. So, we are replacing Plastic spring tensioners with Plastic hydraulic tensioners at a cost of around $700 min. The plastic tensioners wear regardless if spring or hydraulic and need to be inspected at 20K miles. Not sure if i need to go to the expense of a new plate and just replace the spring tensioners. Any reason to not just replace the spring tensioners?
 
#2 ·
You can replace just the plastic pads with some quality after market pieces for a few bucks and be good for a while.


Sent from here.
 
#4 ·
If you don't put a lot of miles on it and don't mind checking the shoes now and then, I wouldn't spend the dinero. I went with a gear drive on my '04 Road King while doing some engine upgrades and haven't had any issues in the last 40,000 miles or so. YRMV
 
#8 ·
So, chains were upgraded with the hydraulic plate then. Can you explain the difference in the chains? Doesn't wear just polish them anyways? Is there an "upgraded" chain for the earlier models? Just a "plug n play"?
 
#13 ·
The stock setup works but I'd get 'em out of my bike asap.
I have absolutely no verification and havent looked for support of the theory, but believe those springs have too much tension and cause unnecessary lateral stress on the cam bearings.
I could be way off base, totally wrong, but that's okay. I've done things way more costly than improving the cam chest of a motorcycle because of being wrong.
 
#14 ·
Thanks for you input guys. Great information here!! Probably spend the money for the special tools and check the shoes every once in a while. Someone mentioned Cycogaskets. Do they sell quality stuff equal to James Gaskets. Their top and bottom kit seems fairly cheap.
 
#17 ·
I've always been against starting a machine off season, for the condensation point.
I was taking to a skidoo guy who starts his in summer, I watches gauge, might even recommended. He gets it hot enough. I question is it really hot enough.

But my old truck was running good, until I parked if for summer one year. Then started leaking.

You would like to think they would build these season items to withstand that. But I am not convinced they care.
 
#20 ·
I've always been against starting a machine off season, for the condensation point.
I was taking to a skidoo guy who starts his in summer, I watches gauge, might even recommended. He gets it hot enough. I question is it really hot enough.

But my old truck was running good, until I parked if for summer one year. Then started leaking.

You would like to think they would build these season items to withstand that. But I am not convinced they care.
Usually operating temp (200-220⁰F) at a minimum of 20 minutes. I like 45 mins to an hour. But if any condensation is noticed it's always best to change the oil and filter. I can't stress this enough with my 81 yr old mother in law. She just keeps starting her old truck once a week and lets it idle for 20 minutes. NOT good enough! LOL!
 
#19 ·
I would be reluctant to go gears on anything after 2002, but guys do. The new style does seem better. I would consider retrofit kit. But it also comes down to if you don't ride much maybe not a big deal.

You can cut the pushrods and look pull cam, so you can see inside pads. You can also pull rockers to do it. New gaskets and seal might not be a bad thing for your bike, depending on age. Neither is hard, but neigher is something I feel like doing. Which is why I do think about retro kit and forget about it for 50k or so.

But replacing pads, for some peeople may get you 10 years.

Of course good time for big bore and cams, labor wise.
 
#22 ·
You are more dedicated than me. I M not changing oil for condensation but just going to ride soon. Maybe I am negligent.

I try to avoid short rides, especially fall and spring.

But I do wonder know which is worse, with respect to drying out seals. Granted engines are more expensive. But how long does do you need to run for both
 
#33 ·
Just changed mine to the new pale yellow shoes at 26,000 miles, outside shoe badly worn, inside ok. Remember, when inserting the cam chest, that the inner shoe tension must be relaxed with a screwdriver, or 3/16” thick long piece of bamboo wedged between the inside cam lobes, or the camshaft ends WILL NOT go back into their bearings. I spent 3 hrs finding this out. See pict. I also sanded flat the chain backside, polished, flushed with solvent, and re-oiled. I suspect the new shoes will not wear as badly as the OEM items now.
Image

Image
 
#36 ·
Thanks for the input! Nice job. Regarding that backside shoe. I think there is a hole where you install a pin to hold that shoe open from the front of the plate. Did you cut you pushrods or remove them?
 
#38 ·
Sorry, plate with cams (and oil pump) installed first, then sprockets and outer chain. I didn’t disturb the 4 oil pump screws during shoe replacement, so oil pump not an issue. Not necessary to remove/mess with oil pump if you leave those 4 srews alone.