Harley Davidson, Finding Top Dead Center. TDC
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- เผยแพร่เมื่อ 23 ส.ค. 2024
- How to find Top Dead Center on a Harley Davidson Forty-Eight Sportster. This is needed when you have to repair an oil leak on your rocker box. TDC Is when the piston is at the top of compression stroke. This is needed to remove rocker box.
#harleydavidsonfix
I'm sure I've dropped comments before. But between you and hammer performance, you guys always have the answer when I'm trying to figure shit out. Keep posting vids, you help keep so many sportsters running and passing on knowledge to those of us that want to learn, keep it up Rocco. FTW 🤙🏼
Happy to help SammyBoy. Thank you for your Sub, Any question just ask.
That’s an awesome rubber hose tip!!!! 🤘😎🤘
Happy to Help, Any questions just ask. Thank you for watching and your Sub Smiley. Let us know how this works out. Ride Safe and have a great day.
Thank you for this. I would prefer to find 'top dead center' using visual ques provided by the rocker arms but I'm a little confused about the correct way to do so. I've actually seen different videos provide opposite info about this - some saying the rocker arms should appear to be at their lowest point, others saying they should appear at their highest ! Which is it ?! Thank you.
Happy to help TDC top dead center. There will be no pressure on your rockers at the top of the cycle. Thank you for watching and all your support Bernard. If there's pressure that would put the rocker at the low point you don't want that. That means when you take it apart, you will have pressure on your lifters. You don't want to do that. Hope that helped.. Ride safe and have a great day.
Hey Rocco. Re building the top end of my 2005 sportster xl1200r. Roadster. Have it all apart. Used this vid to find compression top dead center. Worked great. Ty! Question for you. Any tricks to getting the thin black base gasket off the cylinder base? It is so bonded to the bottom of the cyl that it does not come off. Trying to be super careful that I don’t scratch the alum surface. I have some pics of the cylinder if that would help. Any advice appreciated!
Use a razor blade and move it carefully scrape don't gouge. Take your time. I hope this helps. Any questions just ask thank you for watching and your sub Marshall. Let us know how it works out. Have a great day.
@@TwoWheelRocco 👍👍👍
@@TwoWheelRocco hey Rocco. A follow up on my top end rebuild. Took your advice with the cylinder clean up. Worked great! Engine went back together nicely too (thankfully!). Now onto putting the rest of the bike back together. Thanks again for your guidance!
@@marshallbaser5118 happy to read all went well. Thank you for update and your sub Marshall. Ride safe and have a great day.
thanks rocco ... is there any thing diff if it's a older bike say a 82 from the newer ones doing it this way was wondering with the plug you took off in the back side .. †
This would work on all V Twins. Removed plugs so motor rotation is easier. Hope this helps.
. . Okay if I'm having to redo the cams for the timing and adjust my pushrods do I need to find top dead center on the front and the rear
Happy to help. All you're doing is finding top dead center when you do the front rocker box leak you find top dead center for the front cylinder. When you do the rear cylinder you find top dead center for the rear cylinder when you're doing that rock a box. I would do one rocker box at a time. Any questions just ask. Thank you for watching and all your support Paul. Ride safe and have a great day.
Isn’t TDC when the hose is at its highest level?
Happy to help. there will be two tdc. one on the Exhaust side and one on the Compression side as you look at the video at.3:34 you will see Top dead center on the Compression side. Any questions just ask. Thank you for watching and all your support Sam. It is very important to get top dead center on the Compression side before you take apart your rocker box assembly.. Ride safe and have a great day. Any questions just ask.
Will need this to do my rocker cover box next next chance I get thank you once more ROCCO (bty) where is it alwas worm there
Florida, And it is cold. Next week I have a new rocker box video. Thank you for your support, Ride Safe and have a great day.
Two Wheel Rocco penelas is where I was located in the 90s
Great state, I love it here. 20 years now.
Hey brother, I have a 13 forty eight sportster xl1200x. Rear cylinder won’t run and it pours fuel out of the exhaust pipe. It gets spark but fouls quickly when I put new plug. Any suggestions?
Happy to help. I would start with thef fuel injector. It must be bad. You could reverse the back to the front and see if your problem is in your cylinder. Buy a new injector on eBay. Thank you for watching and your sub Jeremy. Let us know how that works out, Ride Safe and have a great day. Hope this helps.
Nice bro.
Happy to help. Next video is rocker box repair. Thank you.
Hey TWR, I'm trying to check/confirm timing on my 01 xl1200c. It has the big adjustable control module in the nose cone, TDC is a machined vertical line, and my 2 dots are supposed to be in the center of the window using a timing light 20 degrees btdc. My timing light is adjustable should I leave the dial at 0 or set it to 20 degrees? I'm using a clear view plug but can't really see them, I even highlighted the dots with white paint marker. Can you line me out on the steps I need to take, the manual wasn't completely clear. Also the red led light on the module only come on when bike is running, and it blinks dimmly
Thank you for watching. Don't make it complicated pull the rocker box cover off remove spark plugs rotate rear wheel. job done when piston is at its highest point and rockers are at their lowest at top dead center. Hope this helps. Let us know how that works out. The HD manual is designed for you to bring your bike into the dealer plain and simple. Ride safe have a great day
would i need to do this to both if im wanting to remove the cam cover?
No you don't, You need to read your manual. th-cam.com/video/sovEn9zlhVw/w-d-xo.html. They are the same set up. 2004 and up, The ignition is under your seat. Hope this helps Why are you removing your cover? Let us know how this works out. th-cam.com/video/l498yPoYLco/w-d-xo.html
Question: I need to adjust my push rods and need to know if top dead center is good enough or do I need to find true top dead with valves seated completely seeing as a 4 stroke, top dead will not seal the valves every revolution? Thanks if anyone can help. 86 sportster btw
You need to be at TDC no pressure on lifters....Thank you for your Sub Art. Any questions just ask. Ride Safe and have a great day.