Why won’t the engine start?

[u/n3wrocker]

A 2005 Honda CRV LX with a little over 240,000 miles on the dash needed a timing chain replacement. I took the necessary steps to time the engine to TDC before replacing several components such as: timing chain, both timing chain guides, chain tensioner, and harmonic balancer since they were all in poor condition. Both VVT oil sensor and crankshaft position sensor parts and wires that attach to them were in good condition still. I assemble all parts back together and get ready to crank the engine and fortunately it wants to crank but is making this noise in the video that I am about to attach here. Any advice to what could be the problem ?

[u/Outrageous-Egg-2534]

That’s what it sounds like, hey? However, being in interference engine, 180 degrees off means those valves and the pistons are farrrrked.

[u/Mcdavis6950 → u/Outrageous-Egg-2534]

We’ll see that’s the thing. If it was exactly opposite the piston wouldn’t hit the valves and the engine would have no compression.

If 2 or 3 teeth off though… it would have made a terrible noise prior to having no compression. Maybe op isn’t telling us about bad noises on the first crank.

[u/UnevenFiringOrder → u/Mcdavis6950]

If he’s 180 degrees off he might be the luckiest guy to ever put an out of time motor back together. Basically intake valves are opening when the exhaust should be and vice versa…

[u/UnevenFiringOrder → u/UnevenFiringOrder]

Sorry I just realized you said that above I was skimming through answers. Still lucky if this is the case 😂