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600zx Update: August

Sorry for the delay in updating you what's going on guys. Basically i've moved house rather suddenly, i popped a picture up recently of the new garage, it's brilliant. 35 foot long, double garage and lighting/heating.

 

Makes life easier, i've got more done this last week than i have in 3 months of working at my parents house in the odd hour when i pop round :nana2:

 

So where to start, so i've stripped down and cleaned all the metal particles from the block, torqued up the crank, pistons and conrods. The windage tray is all beaten to shape and lock tighted on.

 

I've now fitted and torqued down the sump in place.

 

Timing the cam was the hardest part, I used the "inline centre method".

 

Each cam comes with a card where it says what the distance in degrees is between the TDC (top dead centre) of the piston and inlet valve on cylinder one.

 

Turn the crank till the piston is at the top of the cylinder using a clock gauge, then attach the degree wheel to the front, make a pointer from a piece of clothes hanger and point it to 0 degrees.

 

I used a cigar tube to rest on top of the cam, put the clock gauge on top and turned the crank, you see the clock gauge spin round as the lobe comes to its peak, as it stops, turn it 2 spins round on the gauge either way, mark the two degrees and divide by 2 to get the "intake centre line" in this case it should have been 106 degrees.

 

It wasn't, bloody american engineering :headvswal 102 degrees

 

Luckily i bought a 9 keyway sprocket set so off everythingcame, adjusted it to 2 degrees retarded to knock it down which then came up at 104 degs.

 

Nearly there, retarded it a further 2 degrees and i get 111 degs! :headvswal

 

Now the keyways are off as well, bloody things.

 

Went on desktop dyno and input all the different timing configurations.

 

The torque and power curves stretched further and peaked higher as i moved it to 111 degrees so that's how it's going to stay. In fact comp cams advance the timing by 4 degrees to 106 from 110 in the factory so in reality i've only retarded the cam by 1 degree.

 

Yes my head was spinning after all that maths too :rofl:

 

The software reckons 420bhp and 480ftlb of torque at 4000rpm and 400ftlb at 2000rpm which is good enough for me.

 

So onto the rest of the build.

 

Timing cover went on, end float on the cam was adjusted and the flywheel went on, i shimmed the starter motor to fit and then last night started work polishing up the pulleys and fitting them.

 

Ordered the missing crank spiggot bearing to accept the ford gearbox and then the gearbox will go on friday night.

 

Engine WILL be going in this weekend! :hyper:

 

Now for some pics:

 

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attachment.php?attachmentid=49721&stc=1&d=1250155668

 

attachment.php?attachmentid=49722&stc=1&d=1250155668

 

attachment.php?attachmentid=49723&stc=1&d=1250155668

 

attachment.php?attachmentid=49724&stc=1&d=1250155668

Featured Replies

  • Author

Cheers guys :D

 

PS - I do like your interior :D wana swap? ;)

 

lol, you must be joking :tongue:

 

It's all brand new leather as well it's only had my bum on the seats while i was stripping the dash out. Smells sooooooo nice :D

Looking great Nick, coming along nicely.

 

I used to have a similar garage to work in......now it lives under a Cover on the driveway. :cry:

  • Author

Cheers buddy, it's a great garage and nice and warm too so trying to get as much done each night as possible. I was in there till midnight last night :rofl:

 

Fixed my 1 tonne engine hoist which is very useful, i was given it broken a couple of months ago. All it was was the hydraulic oil was empty. Filled it up and shazam all working again :D

 

Still trying to work out how i'm going to get the engine with gearbox on the back onto the subframe then slide it under the car without a tray. i need some wheels really

 

It's either that or connect the gearbox onto the engine under the car but that's going ot be a total ball ache without a pit to work in.

 

Might get the pick axe out this weekend.... :rofl:

  • Author

Pulleys and belts on as planned :D Bit of polishing work and one bolt hole to tap and bolt up but apart from that ready to go:

 

35085db8a1a0408d9fa6090ffa22de29.jpg

 

Tomorrow, the crank spiggot bearing arrives and i can finally get the gearbox on then it's time to put the whole lot in the car! :D

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