Depending on what you are doing to your motor,if you are overhauling it you would need to set the timing marks on the cam and the crank shaft gears then install the timing chain. If you are just doing maintenance or minor work that requires setting the timing then the following info should be all you need.
On the crank shaft damper or harmonic balancer there will be factory timing marks BTDC (before top dead center) TDC (top dead center)ATDC (after top dead center) Most 5.0L(302) and 5.7l (351w) motors the timing sets between 8-11 degrees BTDC.
Also there are a couple of different ign systems used. Duraspark II-III are the most popular that I have seen. meaning the dist are different. If your truck has duraspark III you have to find a single wire that's capped off somewhere around the dist and un-plug it in order to set your timing. Remove the #1 spark plug and bring the piston to the top of the stroke.
check the rotor to see if it points to the #1 wire pin on the dist cap. if it doesnt then you have to remove and replace your dist to the right position. now you can use a regular timing light to set your timing. that's the way I have been doing it for years and it has always worked for me. hope this helps you out.
Where can I find a free starter solenoid replacement diagram for 1988 ford f250
go to autozone.com, they have free pics
10 degrees BTDC with Spout disconnected.
You can find a 1992 Ford Bronco cooling system diagram at most Ford dealerships. The diagram will be in Ford service manuals at your local library.
1984 ford bronco
vacuum hose dimgram for 1994 ford bronco
Either in the back of a Haynes or Chilton manual or, best of all, in the authorized Ford wiring diagram from Helm. I have found them on Ebay and swap meets.
10 degrees BTDC ( unless engine compartment decal shows different )
diagram of fusebox on 1988 ford ranger
You can find the fuse box diagram, for your 1989 Ford Bronco, by taking the fuse box cover off. The diagram of the fuses is on the bottom of the cover.
Were can you find a fuse diagram for a 1988 ford F350