Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Jeep Wrangler YJ
YJ General Discussion
4.2 Timing and Emissions
Reply to thread
Message
<blockquote data-quote="Gilaguy23" data-source="post: 436214" data-attributes="member: 19498"><p>The timing covers on engines should have either a raised cast part with 10 BTDC to 0 and then 10 ATDC if its cast or a welded on tab with those numbers. Far as the crank/harmonic balancer there should be a easy to see groove into the metal itself that is TDC. If you have a piece or chalk or some white paint clean up the area and fill that groove with either and you'll be able to see it with a timing light real easily. There is one exception to all this as far as setting the timing and that is its not out of the question that the outer steel ring on the harmonic balancer has slipped or rotated away from where its supposed to be and if you set the timing by it, it will run like crap. In that case a good shop with the high dollar equpt will need to set it using their big buck machines. IIRC a few guys looking for new Balancers and they were not to easily had but that was some time ago. Perhaps the likes of Quadratec, aka China parts inc, has began to repo those too.</p><p></p><p>[ATTACH=full]120450[/ATTACH]</p></blockquote><p></p>
[QUOTE="Gilaguy23, post: 436214, member: 19498"] The timing covers on engines should have either a raised cast part with 10 BTDC to 0 and then 10 ATDC if its cast or a welded on tab with those numbers. Far as the crank/harmonic balancer there should be a easy to see groove into the metal itself that is TDC. If you have a piece or chalk or some white paint clean up the area and fill that groove with either and you'll be able to see it with a timing light real easily. There is one exception to all this as far as setting the timing and that is its not out of the question that the outer steel ring on the harmonic balancer has slipped or rotated away from where its supposed to be and if you set the timing by it, it will run like crap. In that case a good shop with the high dollar equpt will need to set it using their big buck machines. IIRC a few guys looking for new Balancers and they were not to easily had but that was some time ago. Perhaps the likes of Quadratec, aka China parts inc, has began to repo those too. [ATTACH=full]120450[/ATTACH] [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ General Discussion
4.2 Timing and Emissions
Top
Bottom