I thought id make a bit of a list of the easy and dangerous traps to fall into when working on a z32. I havent fallen victim to all of these, but i know people who have after a engine install, connecting the washer bottle pipe to the plenum, it looks like a vac hose but when connected, manifold vac will suck water up and hydraulic the motor. After sump removal , installing sump with dipstick fitted can trap it and cannot be removed without dropping the sump back off. cranking or running the motor with no front balancer and timing covers, the belt can wander off the front and damage pistons and valves. Mixing up 02 sensor and VTC plugs. Forgetting about rags in intake and turbo pipes. Installing a FMIC with piping identical on both sides. Mistaking 10mm hex bungs in heads for headbolts. Not marking cam caps and mixing them up. Forgetting about the 10mm head small bolts when trying to remove heads not realising 2 of the headbolts are shorter than the rest. Anyone got some to add?
how to reassemble the motor this should help you out a bit wldttz. Just make sure you bag and label EVERYTHING or you're stuffed, and use a torque wrench
Awsome idea. Im about to do a rebuild and i know very minimal about these engines. they look bloody complex!!! :|
Leaving the little screw in the auto tensioner for the timing belt. Damaging shafts and housings when changing lip seals. The bolt on the hub end of the rear top arms are longer compared to the rest of the bolts in the rear suspension, PITA when you put it all back together with one being wrong. Don't forget the shim plates on the front suspension when using shocks and springs. Otherwise the shock shafts will damage the bonnet. Don't drop the flywheel on your chest, it is heavy and it hurts.
Make sure you brace the drive shaft when you remove the last bolt....it can knock you out. :bash::bash:
Engine after a engine install, connecting the washer bottle pipe to the plenum, it looks like a vac hose but when connected, manifold vac will suck water up and hydraulic the motor. After sump removal , installing sump with dipstick fitted can trap it and cannot be removed without dropping the sump back off. cranking or running the motor with no front balancer and timing covers, the belt can wander off the front and damage pistons and valves. Mixing up 02 sensor and VTC plugs. Forgetting about rags in intake and turbo pipes. Installing a FMIC with piping identical on both sides. Mistaking 10mm hex bungs in heads for headbolts. Not marking cam caps and mixing them up. Forgetting about the 10mm head small bolts when trying to remove heads not realising 2 of the headbolts are shorter than the rest. Leaving the little screw in the auto tensioner for the timing belt. Damaging shafts and housings when changing lip seals. missing the keyway pin on intake cams that locate intake sprocket. On an auto there is a ring in the back of the crank that locates the torque converter, make sure u dont have one stuck to the converter and one in the crank Suspension The bolt on the hub end of the rear top arms are longer compared to the rest of the bolts in the rear suspension, PITA when you put it all back together with one being wrong. Don't forget the shim plates on the front suspension when using shocks and springs. Otherwise the shock shafts will damage the bonnet. Make sure you brace the drive shaft when you remove the last bolt....it can knock you out
Mike and I got stung with the hex bungs in the heads and I got stuck with the sump and dipstick once.
Couple more On engine reassembly, chase all the bolt holes with a tap to clean out all the gunk, don't want bolts bottoming out and giving false tension readings. Place valve lifters upright in a container of oil so as not to let air into them. use compressed air to make sure all oilway galleries are clear, especially the check valves between the heads and the block (learnt that one the hard way)
Engine after a engine install, connecting the washer bottle pipe to the plenum, it looks like a vac hose but when connected, manifold vac will suck water up and hydraulic the motor. After sump removal , installing sump with dipstick fitted can trap it and cannot be removed without dropping the sump back off. cranking or running the motor with no front balancer and timing covers, the belt can wander off the front and damage pistons and valves. Mixing up 02 sensor and VTC plugs. Forgetting about rags in intake and turbo pipes. Installing a FMIC with piping identical on both sides. Mistaking 10mm hex bungs in heads for headbolts. Not marking cam caps and mixing them up. Forgetting about the 10mm head small bolts when trying to remove heads not realising 2 of the headbolts are shorter than the rest. Leaving the little screw in the auto tensioner for the timing belt. Damaging shafts and housings when changing lip seals. missing the keyway pin on intake cams that locate intake sprocket. On an auto there is a ring in the back of the crank that locates the torque converter, make sure u dont have one stuck to the converter and one in the crank On engine reassembly, chase all the bolt holes with a tap to clean out all the gunk, don't want bolts bottoming out and giving false tension readings. Place valve lifters upright in a container of oil so as not to let air into them. use compressed air to make sure all oilway galleries are clear, especially the check valves between the heads and the block (learnt that one the hard way) Suspension The bolt on the hub end of the rear top arms are longer compared to the rest of the bolts in the rear suspension, PITA when you put it all back together with one being wrong. Don't forget the shim plates on the front suspension when using shocks and springs. Otherwise the shock shafts will damage the bonnet. Make sure you brace the drive shaft when you remove the last bolt....it can knock you out
Couple that caught me out. Not vital but will certainly save a lot of time. Attached the vac lines to the wastegate actuators and the oil cooler lines to sump/filter tree, before dropping the engine in.
labelling things on paper and leaving them out in the rain so all the writing gets washed off like a certain mod did lol
:biggrin: it wasnt in the rain though it was under cover but the labels got sun bleached and writing faded
Painters rag straight into the compressor, don?t let that happen. Got the wiring arse about on n1 cp connector, one dead splitfire, thankyou very much. :bash:
letting me into beavers garage while he is doing the rebuild and having to put up with my constant wanting to buy everything there lol
I'd second that, luckily mine got stuck in the IACV pipe killing my idle so It never made it to the compressor before I found it
forgetting the 3 earth wires on the back of the plenum starting the engine and for some reason it stalls after about 5 min because you fried your new PTU
