I had the original fibre timing gear go a little while back and, after getting new steel kit, bearings etc., i proceeded to replace the gears.While i had the engine out, I also did rear oil seal, new clutch/pressure plate, gaskets etc after dropping the sump and cleaning all of the collapsed timing gear garbage.
Fitted the new timing gear, making sure the timing marks lined up and all seemed correct.
Refitted the engine, static set the timing gear and have been trying to get the volvo to start.
I checked the following:
spark - both from coil and at plugs
Fuel - electric fuel pump and wet plugs after trying to start
Checked static timing several times - according to manual, set at 5’BTDC on compression.
Checked valve clearances and re adjusted just in case.
Trying to start, it turns over with compression, seems to nearly try and fire but no real ignition, more a quick speed up as though about to fire.
I have rebuilt various engines of my cars (datsun240z rally car- sons Vauxhall, daughters mzda 323) without issue.
Have checked all known areas, gaps, timing, etc but am at a loss.
If anyone has anything extra to add,/suggest something to check, it would be appreciated.