 At TDC #1 but... |
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| Literati914 |
 Jul 26 2024, 06:57 PM
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Senior Member  Group: Members Posts: 1,651 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region  |
On a freshly built but never installed, never ran.. oil never added and sitting for years 1.7L engine: I've verified TDC @ #1 but the rotor tip is showing 180 deg. out.
Is that just a matter of loosening a bolt and rotating it to face towards the driver's seat (apprx).. or is it gonna be more of a 'pull the distributor and re-clock the gear down in the bore' ? . |
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| technicalninja |
Jul 26 2024, 07:36 PM
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Senior Member Group: Members Posts: 1,825 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region 
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If you've changed over to steel push rods, it's zero clearance!
When you're TDC exhaust both valves should be slightly opened and any movement either direction causes one of the rockers to descend. At TDC compression, movement of the crank 30 degrees either direction doesn't do shit to the rockers. On an engine with aluminum pushrods both rockers will have a "click" of free play in them. Leak down tests are done at TDC compression, both valves are closed. If you do leak down at TDC exhaust both valves will have airflow as they are slightly open. You can twist the crank or add air pressure to determine which TDC you are at. |
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Posts in this topic
Literati914 At TDC #1 but... Jul 26 2024, 06:57 PM
Artfrombama
On a freshly built but never installed, never ran... Jul 26 2024, 07:03 PM Literati914
The #1 piston is at TDC twice during a cycle. On... Jul 26 2024, 07:24 PM
Artfrombama
The #1 piston is at TDC twice during a cycle. O... Jul 26 2024, 07:27 PM Literati914
I think the manual calls for .006" for most... Jul 26 2024, 07:29 PM technicalninja It's .006 and or .008 depending on year.
For ... Jul 26 2024, 07:38 PM Literati914
.. Tight side of .016" intake/exhaust, IIRC ... Jul 26 2024, 08:13 PM technicalninja .016mm is .00062" or 6 tenths!
I'd ... Jul 26 2024, 08:19 PM 930cabman
.016mm is .00062" or 6 tenths!
I'd... Jul 27 2024, 05:05 AM Literati914
.16mm IS .0062" which is what you're th... Jul 26 2024, 08:21 PM |
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