October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
High Altitude Check
- Warm up engine and check ignition timing at idle. Disconnect hose from distributor sub-diaphragm, and plug hose end.
- Check ignition timing. Timing should be 5° BTDC. Reconnect hose to sub-diaphragm. Check that timing advances about 12° BTDC.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect vacuum hose between check valve and vacuum pipe at vacuum pipe side. Plug pipe end.
- Disconnect 3 hoses from pipes on top of HAC valve. Blow air into each hose and check that air flows into carburetor. Reconnect hoses to proper locations.