Mechanics

DOES ANYONE HAVE A PIC OF HOW THE TIMING MARKS ON A 2.3 LITER LINE UP??

1994 Buick Other • 80,000 miles

I just need a pic or location of the timing marks
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Jeremy76
March 28, 2012.




Buick -what model?

Tiny
Rasmataz
Mar 28, 2012.
Its a buick achieva 2.3 liter
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Tiny
Jeremy76
Mar 29, 2012.
The Achieva is an Oldsmobile, not a Buick. There are 3 different 2.3 engine so we need the 8th digit of the VIN#.

Wrenchtech
Mar 29, 2012.
The 8th digit on the vin is a 3 n I didnt mean to call it a buick that was my fault.

Tiny
Jeremy76
Apr 1, 2012.
You're welcome. Be VERY careful when you rotate that engine. The pistons will hit the valves and bend them very easily.

Wrenchtech
Apr 1, 2012.
Thanks for the tip! The cam wouldnt rotate so I had to move the crank alil then it moved freely

Tiny
Jeremy76
Apr 3, 2012.
That probably saved you $500 or more by doing that.

Wrenchtech
Apr 3, 2012.
Ok on this 94 olds I got it n it didnt run so I changed the coils n still got nothin, so because there still wasent spark I moved to the timing chain and found that the tensionor was shot n the timing chain was jumpin around.I just replaced the tensionor, chain, and spockets n set the timing exactly what the pic showed n it still wont start.I also had the spark module tested!Any ideas that might help would be greatly appreciated?Thanks

Tiny
Jeremy76
Apr 3, 2012.
Complete the rest of the testing that you haven't already done.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.

Wrenchtech
Apr 3, 2012.

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