With a scan tool or by unhooking the battery.
To reset the timing on a 1985 Oldsmobile 98, start by ensuring the engine is at operating temperature and turn it off. Disconnect the timing connector (usually a single wire) to set the timing to base specifications, then start the engine and use a timing light to check the timing mark on the crankshaft pulley against the timing tab. Adjust the distributor by loosening the hold-down bolt and turning it until the timing light shows the correct timing specification, typically around 6-10 degrees BTDC. Finally, reconnect the timing connector and ensure all components are secure before testing the engine.
There is a idle screw on the throttle linkage on the carb that you can turn to increase the idle speed and then hook up your timing light to check the timing.
Change the oil.
turning the distributor adjusts the timing, get a timing light and the timing marks are down by the crank pulley.
You could put a vacuum gage on the engine and time it for peak vacuum. A timing light is still better.
The only way to reset the sensor light on a 1985 Nissan pickup truck is to disconnect the sensor wiring. After 60 seconds, put the wiring back in place.
The timing specification for a 1985 Ford F700 with a 370 V8 engine is typically set at 6 to 8 degrees before top dead center (BTDC) at idle. It's essential to check the specific service manual for the vehicle, as timing can vary slightly based on the engine configuration and any modifications. Always ensure the engine is at operating temperature and that the timing is adjusted using a timing light for accuracy.
engine light
this is real fun. first get to operating temp then remove fan shroud and fan then power steering pump just set it off to side then use timing light to check timing you have to remove all this because you cant see the marks cause the cowl is in the way.
how do you set timing on a 1985 350 gmc truck
The timing setting for a 1985 El Camino with a 305 cubic inch engine is typically around 8 degrees BTDC (Before Top Dead Center) at idle. It's important to check the specific timing specifications in the service manual or under the hood sticker, as variations may exist based on emissions and other factors. Ensure the engine is at operating temperature and that all vacuum lines are connected properly before adjusting the timing. Always use a timing light for accurate adjustments.
First fix whatever the problem is. That alone oughta turn the light off. Otherwise, either disconnect the battery for a minute or so, or remove the 15A EFI fuse #12 in the engine compartment fuse box for a minute or so.