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95lq1vert's 1994 Cutlass Supreme convertible progress thread


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#21 95LQ1VERT

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Posted 19 May 2018 - 02:20 PM

I read one post about finding TDC, which it's spot on as soon as the piston stops raising the balancer notch is lined up at the arrow on the front cover. As far as getting the cam bolts out, I've managed to get the front cam bolts off, and one cog. The other cog is stuck on the cam.143c033507b4d58eb715fda6cb52db8a.jpg Sent from my SAMSUNG-SM-G930A using Tapatalk

Doug Bowles 1995 Cutlass Supreme Vert 140000 miles - First W (more to come :twisted:)1985 Buick LeSabre Limited Collectors 98,500 Orig. miles - Rocket 307


#22 Galaxie500XL

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Posted 19 May 2018 - 03:40 PM

Get a paint marker, a dowel, and a piece of chalk. Remove #1 spark plug. Insert the dowel. Turn the engine clockwise, until the dowel stops rising. Make a chalk mark on the balancer aligned with the timing mark on the timing cover, , then turn counterclockwise, and repeat the process. Do this a couple of times to confirm the marks. Once certain the marks are accurate, true TDC at the crank will be a spot on the balancer EXACTLY midway between the two chalk marks. Don’t be surprised if your new mark isn’t in the same place as the mark as the permanent mark on the balancer. Mine was 6 degrees retarded.
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galaxie500xl

1993 LT1 Corvette Coupe

1988 Camaro IROC-Z 5.7 TPI 5-speed

2015 Chevrolet Equinox LTZ

GONE to a new home... 1995 Cutlass DOHC Convertible, 3rd Quarter 2012 W-Body.com COTQ


#23 Galaxie500XL

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Posted 19 May 2018 - 04:11 PM

It’s important to stop rotating the crank the instant the dowel stops rising, then make the chalk mark. The piston stays up for several crankshaft degrees...that’s why you rotate in both directions, because you’re looking for the actual zero degree spot on the crankshaft, which is between the marks you make in each direction.

galaxie500xl

1993 LT1 Corvette Coupe

1988 Camaro IROC-Z 5.7 TPI 5-speed

2015 Chevrolet Equinox LTZ

GONE to a new home... 1995 Cutlass DOHC Convertible, 3rd Quarter 2012 W-Body.com COTQ


#24 95LQ1VERT

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Posted 21 May 2018 - 06:59 PM

I got it timed, and put back together last night. However it sounds like the timing belt is whining. Is that normal for these engines? Or does that mean it's too tight? I can't remember my last one being this pronounced after the belt job. Sent from my SAMSUNG-SM-G930A using Tapatalk

Doug Bowles 1995 Cutlass Supreme Vert 140000 miles - First W (more to come :twisted:)1985 Buick LeSabre Limited Collectors 98,500 Orig. miles - Rocket 307


#25 Galaxie500XL

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Posted 21 May 2018 - 07:20 PM

I’m assuming that the idler bearings/pulleys were replaced as well? Is the belt moving smoothly across the cam gears? I’ve looked everywhere for my old LQ1 stuff...haven’t found anything yet, but I’m sure I didn’t throw anything away. Did you ensure the actuator is properly in the socket when you pulled the installation pin? Did you engage the actuator after pulling the pin using a wrench on the tensioner? I’ve forgotten the proper torque value you’re supposed to use for that step.

galaxie500xl

1993 LT1 Corvette Coupe

1988 Camaro IROC-Z 5.7 TPI 5-speed

2015 Chevrolet Equinox LTZ

GONE to a new home... 1995 Cutlass DOHC Convertible, 3rd Quarter 2012 W-Body.com COTQ


#26 95LQ1VERT

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Posted 21 May 2018 - 07:26 PM

Idlers x2 are new, plus the tensioner pulley, actuator assembly, and belt. (I used Dayco brand) Now the belt was tight to put on even with the slack on the tensioner side. But yes I made sure to set the ball end of the actuator into the pulley, and I did use a wrench to slightly tighten the belt before pulling the pin. First photo is the ball, second is before actuator is engaged, third is engaged after pulling pin and rotating engine. 31545d8c4488857d82590a93b553f503.jpg049fbbc886dd66116b19cfcf72870ee4.jpg0d882ca43404df00234dc1b601eeb0bd.jpg Sent from my SAMSUNG-SM-G930A using Tapatalk

Doug Bowles 1995 Cutlass Supreme Vert 140000 miles - First W (more to come :twisted:)1985 Buick LeSabre Limited Collectors 98,500 Orig. miles - Rocket 307


#27 95LQ1VERT

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Posted 21 May 2018 - 08:15 PM

I am also getting code P0341 according to my Actron Scantool, says it's a cam sensor fault. It's plugged in its causing it to not run right over half throttle while driving it I assume. Cleared it and it was instantly back. Sent from my SAMSUNG-SM-G930A using Tapatalk

Doug Bowles 1995 Cutlass Supreme Vert 140000 miles - First W (more to come :twisted:)1985 Buick LeSabre Limited Collectors 98,500 Orig. miles - Rocket 307


#28 Galaxie500XL

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Posted 21 May 2018 - 08:53 PM

I discovered once when I had a faulty crankshaft position sensor, the ECM incorrectly reported it as a cam sensor fault...I'd check wiring down there first, but a bad CPS is actually a possibility.

 

You might want to pull the cam sensor, though, and make sure there's not metal shavings stuck to the sensor.


galaxie500xl

1993 LT1 Corvette Coupe

1988 Camaro IROC-Z 5.7 TPI 5-speed

2015 Chevrolet Equinox LTZ

GONE to a new home... 1995 Cutlass DOHC Convertible, 3rd Quarter 2012 W-Body.com COTQ


#29 Galaxie500XL

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Posted 21 May 2018 - 08:58 PM

Found my postings from here chronicling my first LQ1 timing belt replacement.  It wasn't a good time.  :roll:  

 

http://www.w-body.co...inally-running/


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galaxie500xl

1993 LT1 Corvette Coupe

1988 Camaro IROC-Z 5.7 TPI 5-speed

2015 Chevrolet Equinox LTZ

GONE to a new home... 1995 Cutlass DOHC Convertible, 3rd Quarter 2012 W-Body.com COTQ


#30 95LQ1VERT

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Posted 22 May 2018 - 12:54 PM

May have found the culprit? The wires are all chafed and exposed on the harness. I moved them around and the SES light went away. Sent from my SAMSUNG-SM-G930A using Tapatalk 6979f30e5672db1ee81567b2e171e07e.jpg

Doug Bowles 1995 Cutlass Supreme Vert 140000 miles - First W (more to come :twisted:)1985 Buick LeSabre Limited Collectors 98,500 Orig. miles - Rocket 307


#31 95LQ1VERT

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Posted Yesterday, 11:59 AM

Nope. I didnt fix and the SES is back on, same code... ordered a new cam position sensor. Sent from my SAMSUNG-SM-G930A using Tapatalk

Doug Bowles 1995 Cutlass Supreme Vert 140000 miles - First W (more to come :twisted:)1985 Buick LeSabre Limited Collectors 98,500 Orig. miles - Rocket 307





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