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Another Rn + 20G, My 'build' Thread


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Cranked for a while without the coil to circulate some oil,plugged the coil back in and she won't start.

The engine sounds weird while cranking. The first time I cranked it I thought that the engine wasn't even turning, the engine turning had no 'umph' to it; I thought maybe the bendex wasn't engaging the flywheel. Upon confirmation the cams were turning. The cams are still making that god damn clicking noise too

Since I'm by myself I had to make a video to check the spark. I'm uploading it now and will post the link when done. You can hear how the engine sounds in it.

What else should I check? I know it is getting fuel to the rail. Should I pull the injectors and see if they're shooting out fuel (it seems too messy).



Video uploaded:

http://www.youtube.com/watch?v=7LGz24rSOQQ&feature=youtu.be

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Waiting for a ride to the autoparts store.

I set the cam timing with the Volvo tool so I doubt it would be off. I tried to take a peek inside the cylinders and I'm not sure, but I think I may see some marks on the piston. If it had been valve collision I would expect the piston to look somewhat shiny in the areas where they collided, but the cylinders are still all black.

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0 PSI in all cylinders.

When I had a friend crank it I noticed that the VVT gears were moving in and out about 2 mm. I took the covers off and tightened the VVT cam bolts by 45°. I'm guessing that the hubs weren't properly loaded?

I took off all the ignition components and eyeballed the timing, everything seemed in check. Since I only eyeballed it, the timing could be off by a tooth or two. Would that be enough to give me 0 compression?

Could it still be a timing issue or should I start pulling the head?

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What torque did you originally set the VVT center bolt to? It's supposed to be around 80something ft/lb, if I recall correctly. If they were set to spec, I don't think you would have got an additional 45 degrees out of them.

I would set the crank to the pointer, and see where the cams sit. Use a straight edge to check the slots are level with the crank set. Any chance you got the intake & exhaust cams reversed (dual or single VVT)?

Edit: to get Zero compression, I'd say the cams would have to be so far out of time that the chances are good you have all bent intake valves, otherwise there should have been some compression at least. Hope I'm wrong, for your sake.

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Dual VVT

I torqued them to the correct torque. When I got the 45° it was just a quick turn with very little resistance, not like I was tightening that much more.

I'll go do a more accurate check of the timing.

As for reversing the intake and exhaust, possible but not plausible. I'll check again. Intake above, exhaust under, right?

How far would timing have to be off to cause zero compression? Could it just be off by a few teeth?

Edited by Tightmopedman9
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Alright, I checked the timing, accurately this time. The intake was slightly retarded, by like 5°, I fixed that but still zero compression.

I'm assuming the worst, and will be taking the head off tomorrow. Before, I will talk to my indy Volvo guy in my area and see if he would mind taking a look at it.

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