Manual compression releases

[gabbyduffy]

    Are some Manual compression releases better then others, in releases more compression for easier hot starts, woods is advertising some releases I may consider giving a try

http://www.woodcarbs.com/comp_releases.htm  ............. Link

[Snuff™]

I have yet had a problem with these Stihl Decompression Valves.

[gabbyduffy]

     Whats your cranking compression?

[TorQuePimp]

  $100 for MCR's is highway robbery......claims he designed them .....eh....sure

   Vulcan,goodson,Tp engineering,specific ones for Stihl and Pardner...husky  all work just fine and are 1/4 ISH the price.

[Snuff™]

     Whats your cranking compression?

Have never checked.    95" SE Flat top pistons, 79cc Heads w/ Woods TW6 cam.

[gabbyduffy]

  $100 for MCR's is highway robbery......claims he designed them .....eh....sure

   Vulcan,goodson,Tp engineering,specific ones for Stihl and Pardner...husky  all work just fine and are 1/4 ISH the price.

  Would any of the above work better then SE harley releases? Is there more then one thread pattern/length. Heads were cut for the HD SE, which of the above would be a direct replacement?

  ADD ON...... I just used a set of S&S comp. release cams for the first time and I gotta say "man they are nice" I never started an engine that spun so freely on start up.

[lilchief]

Goodson makes great compression releases. And yes, there are different thread depths as far as I know.

Lil Chief

[sharkoilfield]

Have had two sets of the HD releases; one's I had failed after a while so I cut into them to see what happened. There's a circular coil spring that holds 3 detent balls in place when button is pushed in; the spring rotated and one of the balls stuck in the gap and only two were holding the release in; it would pop shut as soon as motor turned over. Other aftermarket ones never failed yet.

[Nowhereman]

The ones that came with my Ultima127 are still functioning fine.
I use em every time I start the engine; hot or cold.
One thing I do is once a year (when I change plugs) spray em down with Berrymans carb cleaner.
They've been good for 30k miles now.

[Jim Bronson]

SE on my '05 Dyna since new. No problems. When they lose their "snap", I squirt some WD40 in them, and they're good for a another year or two.

[Bakon]

They do gunk up.

[bobrk1]

first ones I had were Jim's didn't last long went with a cheaper one lasted about the same Harley SE lasted the longest for me.

[prodrag1320]

    Are some Manual compression releases better then others, in releases more compression for easier hot starts, woods is advertising some releases I may consider giving a try

http://www.woodcarbs.com/comp_releases.htm  ............. Link

these are GOODSON releases,what we`ve used here for years.never had a failure

[truck]

How about a little "Manual Compression Release" for dummies.
Do you press them to open and they stay open by themselves till the motor starts, then they close themselves?

[hrdtail78]

The ones that came with my Ultima127 are still functioning fine.
I use em every time I start the engine; hot or cold.
One thing I do is once a year (when I change plugs) spray em down with Berrymans carb cleaner.
They've been good for 30k miles now.

...and they are about $16 a piece.

[Nowhereman]

How about a little "Manual Compression Release" for dummies.
Do you press them to open and they stay open by themselves till the motor starts, then they close themselves?

Yes

[Nowhereman]

They do gunk up.

They can, think of them as a non sparking spark plug.
Clean em once in a while. (yearly)

[garyajaz]

+1 torque.
I have the all stainless Vulcans on both my ironhead and twin cam.
very nice units. and like $23 each.

[timtoolman]

I've had 2 S.E. Sets they are junk, had all stainless ones from Vulcan ,they burn your fingers no rubber/plastic caps, have woods in for 2 years no sticking issues yet. But I do lube them  annually

[rbabos]

How about a little "Manual Compression Release" for dummies.
Do you press them to open and they stay open by themselves till the motor starts, then they close themselves?

Yes. When it comes time that a blip of throttle is needed to close them after the engine starts, it's time to clean or lube them.
Ron

[mike jesse]

Only one release is needed. install in the rear head.
Hold it down with your thumb until the engine fires and let go of it.
If it sticks, just blip the throttle and it'll shut.

I've used this method to start a 124 with 11.2 comp. for 2 years without a problem.

[gabbyduffy]

Only one release is needed. install in the rear head.
Hold it down with your thumb until the engine fires and let go of it.
If it sticks, just blip the throttle and it'll shut.

I've used this method to start a 124 with 11.2 comp. for 2 years without a problem.

This is what I do when I have to do a quick restart on a heat soaked motor.

Check this out automatic compression releases to replace the manual releases, they stay open until your finger comes off the starter button. Looks Cool............  LINK .....http://www.ebay.com/itm/Harley-Manual-to-Automatic-Compression-Release-ACR-adapters-only-screamin-eagle-/131604084462?hash=item1ea436f6ee&vxp=mtr

[Xanadu]

nowhereman,

how do  you clean them?  do they unscrew from the head like a regular spark plug?  just soak the whole thing in berrymans chem dip?

only have 700 miles on my ultima 120 with compression releases, its all new to me..

[gabbyduffy]

nowhereman,

how do  you clean them?  do they unscrew from the head like a regular spark plug?  just soak the whole thing in berrymans chem dip?

only have 700 miles on my ultima 120 with compression releases, its all new to me..

I poor marvels mystery oil in a water bottle, remove the releases and let them soak in the bottle. Put the top on and shake them up once in a while. Pull them out and work 'em a little.... Open-n-close.

[Ohio HD]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

[Jim Bronson]

I've had 2 S.E. Sets they are junk, had all stainless ones from Vulcan ,they burn your fingers no rubber/plastic caps, have woods in for 2 years no sticking issues yet. But I do lube them  annually

You must have bought the cheaper "SE Junk" versions. My SE were installed 10 years ago. I've never had a failure and I rode the Dyna almost every day until very recently when I bought the RK. I lube whenever they don't snap when I open them. They do get hot. That's why I open them right after I park the bike and my gloves are still on.

[Nowhereman]

nowhereman,

how do  you clean them?  do they unscrew from the head like a regular spark plug?  just soak the whole thing in berrymans chem dip?

only have 700 miles on my ultima 120 with compression releases, its all new to me..

Just unscrew them as you would take out a plug.
I then spray em with Berrymans B12, press em in then spray again, then re install.
Once a year should be fine.

[Nowhereman]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

Once a year should not wear any thread out but, if you want to clean em every week, go for it.

[Ohio HD]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

Once a year should not wear any thread out but, if you want to clean em every week, go for it.

I don't use them, I use ACR's, and never clean them.

Most will eventually strip the 10mm thread if they remove them much at all. Most don't have or use an inch pound wrench.

[Nowhereman]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

Once a year should not wear any thread out but, if you want to clean em every week, go for it.

I don't use them, I use ACR's, and never clean them.

Most will eventually strip the 10mm thread if they remove them much at all. Most don't have or use an inch pound wrench.

If yoour worried about the threads, put a dab of anti-siege compound on em before re-install.

[Ohio HD]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

Once a year should not wear any thread out but, if you want to clean em every week, go for it.

I don't use them, I use ACR's, and never clean them.

Most will eventually strip the 10mm thread if they remove them much at all. Most don't have or use an inch pound wrench.

If yoour worried about the threads, put a dab of anti-siege compound on em before re-install.

How does anti-seize keep one from stripping them when tightening them?

[Nowhereman]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

Once a year should not wear any thread out but, if you want to clean em every week, go for it.

I don't use them, I use ACR's, and never clean them.

Most will eventually strip the 10mm thread if they remove them much at all. Most don't have or use an inch pound wrench.

If yoour worried about the threads, put a dab of anti-siege compound on em before re-install.

How does anti-seize keep one from stripping them when tightening them?

They just go in nice an easy so you don't have to lean on em when tightening down.
They come out nice also so you don't lay on em.

[Ohio HD]

Spray some carb cleaner in the expulsion hole once a week, work the release open and closed. You'll never have sticking issues, and won't have to take them out. Keeps from wearing the 10mm aluminum threads out.

Once a year should not wear any thread out but, if you want to clean em every week, go for it.

I don't use them, I use ACR's, and never clean them.

Most will eventually strip the 10mm thread if they remove them much at all. Most don't have or use an inch pound wrench.

If yoour worried about the threads, put a dab of anti-siege compound on em before re-install.

How does anti-seize keep one from stripping them when tightening them?

They just go in nice an easy so you don't have to lean on em when tightening down.
They come out nice also so you don't lay on em.

My point is most will not have an inch pound wrench, and stand a good chance of stripping them from over tightening, anti-seize or not, too much torque will strip them.  I suggest cleaning them in place, more frequently, then they don't have to be removed.

[Latrobedyna]

"My point is most will not have an inch pound wrench" That shocks me i would figure any guy wrenching on his scooter would have one.

[Tsani]

"My point is most will not have an inch pound wrench" That shocks me i would figure any guy wrenching on his scooter would have one.

You would be surprised. Had a friend tell me that he does it like a spark plug, runs it in till it seat (washer squished) and then a quarter turn past. Guess what he did?

[Nowhereman]

I'd bet most guys could deal with it but, we are steering off of the road here.
Yes they can clog up.
Yes you can clean them and unless you have been running two stroke oil in your bike, once a year would be more than fine.

[Jim Bronson]

I've never removed mine to clean. I lube them by squirting a few drops of WD40 alongside the stem and work them up and down. I do this anytime they stop snapping when I push them open (about every two years.) They then work as they did when new.

[prodrag1320]

anti seize wont have any effect on weather they will strip from over tightening,its to help getting them out months or years later.the streel release (or spark plug,sensor,whatever) from having the steel oxidize to the alluminum

[Snowyone]

I tried Vulcan on two bikes and had to manually close them most of the time.  Blipping the throttle helped but not always.  I've sense replaced them with SE and have not had a problem.  About 25k on the Fatboy with a 124 and just a few k on the Crossbones with a 107.  107 has 195 ccp and don't know ccp on the 124.  I use nickel antiseize.

[Tsani]

Yup, I had the same results with the Vulcan SS ones. Plus the SS caps burn your fingers. Should have figured that one. Went back to using the Goodson Black tops.

[Xanadu]

if you remove them to clean them like a spark plug, do you have any retorque values? or just snug them up?  Im concerned about the posts on stripping the threads from overtightening.