Timing Belt Replacement: Exhaust Cam rolled forward

dbjamin · Post by **dbjamin** » 05 Oct 2012, 15:42

Ok. Got it back open.

Yes I need to change the plugs:

: #1 Spark Plug; photo-2.JPG (144.46 KiB) Viewed 1196 times

I linked up the Crank Shaft exactly. (took out plug to reduce pressure really helped)

: Crank Shaft; photo-1.JPG (107.78 KiB) Viewed 1196 times

Now looking at the Exhaust and Intake. Notice exhaust is advanced. When I initially did this job, the exhaust rolled forward on me. I did roll it back a bit. Should I roll it back one more notch? Intake is lined up perfect. Tough tell from photo.

: Cams; photo.JPG (96.79 KiB) Viewed 1196 times

Post by **Pauloil** » 05 Oct 2012, 16:11

be sure to put the mark on oil pump exactly in the middle of the correct valley first. I think the top looks fine. if you turn crank back a bit these marks will be right on.

dbjamin · Post by **dbjamin** » 05 Oct 2012, 20:04

Reassembled. New plugs. Road test.

P0301 thrown at 60MPH.

I pulled the #1 plug when I got home. No oil. Looked fine.

Any ideas?

Thanks.

electech · Post by **electech** » 05 Oct 2012, 20:27

Check plug wires. Did you replace those too? When I did mine, the #1 and #3 plug wire insulation was separated from the core..not sure what that meant other than old wires, I didn't have any trouble reassembling with a touch of silicone. If the wire routing is not correct and/or the wires are old, the #1 (longest wire) could be losing spark from worn insulation or grounding against a metal part somewhere.

I would start at the place where you worked (fuel rail) and work back along the #1 plug wire and make sure it wasn't damaged.

Post by **rspi** » 05 Oct 2012, 21:19

The marks look good to me. I have never pulled the crank pulley myself.

Check the date on the wires, week/year (28/95). Replace wires, rotor, and cap.

You can also check compression. Sometimes random things happen at strange times making you think they're linked.

dbjamin · Post by **dbjamin** » 12 Oct 2012, 14:39

New Plugs, Wires and Distributor Cap and rotor.
Road Test: Hit 70mph. Error codes thrown P0301 and P0302.

Engine shudders.

While the engine was running, I pulled each plug one at a time, checking for spark. Each had spark and the engine resumed when I replaced each plug.

I will swap out NKG to Volvo plugs but I think there's something else afoot.

I have a fffsssst sound coming form the heat shield area. Any ideas. I felt around and didn't find any hoses detached.
Thanks

dbjamin · Post by **dbjamin** » 12 Oct 2012, 19:06

New Volvo plugs in. Throwing P0302.

Still running rough.

dbjamin · Post by **dbjamin** » 12 Oct 2012, 23:36

Compression test on valves is next.

Timing Belt Replacement: Exhaust Cam rolled forward

Re: Timing Belt Replacement: Exhaust Cam rolled forward