G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » Quick Board » Archive through May 29, 2014 » Leak down test « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Baybueller
Posted on Wednesday, May 28, 2014 - 07:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am checking an 08 Uly with the proper test kit. There is no timing window I am aware of so just bring the piston all the way up and apply brake in gear.
Any tricks or tips for doing this?
Top of pagePrevious messageNext messageBottom of page Link to this message

Teeps
Posted on Wednesday, May 28, 2014 - 11:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I raise the bike lift points on the muffler until the rear wheel is off the ground.
Then shift to 5th gear; rotate the rear wheel by hand.

There is no Allan head plug at the bottom of the cylinder vee on the cam side of the engine on an '08?
Top of pagePrevious messageNext messageBottom of page Link to this message

Baybueller
Posted on Wednesday, May 28, 2014 - 07:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

No timing plug, just a spot in the casting where it would go.
Top of pagePrevious messageNext messageBottom of page Link to this message

Rocket_in_uk
Posted on Wednesday, May 28, 2014 - 07:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Get it on the comp stroke on the relevant cyl with the plugs out. Put a pencil or similar down the plug hole and rotate the engine until the piston is at TDC. Then do your leak down.


Rocket in England
Top of pagePrevious messageNext messageBottom of page Link to this message

Baybueller
Posted on Wednesday, May 28, 2014 - 09:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Went the rod in the hole route. Valves seem tight but a lot of air coming through the PCVs. Had to do it cold as after the dealers "Buell expert" fiddled with it she went from running a little off to running like sh&t.
Going to go over the throttle body next. Its not just a bike, its an adventure
Top of pagePrevious messageNext messageBottom of page Link to this message

Rocket_in_uk
Posted on Thursday, May 29, 2014 - 06:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can't rely on air escaping as a definitive test. You need to put a pressure gauge in the equation and read the results.

If you're not familiar with what you're doing, until you have a base reading at TDC you've no idea if you're on the right stroke at TDC or you have a severely worn or damaged engine.

Given your engine runs, you need to be leak testing both cylinders for comparative results against each other, and to the reading on the pressure gauge and the engines required tolerance parameters.



Rocket in England
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration