1971 Datsun 240z: From blown head gasket to full monty

Restores, Revamps and Repairs

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toycollector10
Posts: 94
Location: Christchurch

1971 Datsun 240z: From blown head gasket to full monty

Post by toycollector10 » Thu May 11, 2017 7:37 pm

Hi guys,
You might remember earlier in the year I was looking for an E88 head so that I could fix up my car. The head had gone porous and there was engine coolant sitting on top of the number 4 piston. Ouch.
I found a correct re-manufactured one out of California but as the block was also damaged (pitting in the affected cylinder bore) it was bored first oversize. Ground crank, all new bearings, pistons and rings, water and oil pumps, timing chain kit, cylinder head bolts, crankshaft balanced, hoses and etc and here she is. The pistons are flat tops but have valve reliefs so that the next owner can fit a hot cam if that's what they might want to do. This "keeper" is getting pricey but I think it's worth doing and it's still a matching numbers car.

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Rivet counters will see the RHD replacement brake vacuum assist correct braided hoses. Not unobtainable, but...... I want it to look stock standard as much as possible. And yes, I've got a red reproduction Bendix sticker for the vacuum cylinder.

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Andy
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Posts: 2015
Location: Auckland

Post by Andy » Fri May 12, 2017 11:14 am

Good to see someone flying the originality flag high, thanks for the pics

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toycollector10
Posts: 94
Location: Christchurch

Post by toycollector10 » Mon Jul 10, 2017 5:55 pm

Can anyone help me with this problem: The rebuilt engine is back in the car but it's not at 100 percent, missing at low loading etc. I've done 600 miles to run it in so far.
Can anyone recommend an old school mechanic in Christchurch who would be able to fine tune the timing/electrics (if required) and the carburetors (if requred).
Or should I take it to an auto electrician first to establish that side of things then look for a carby specialist? Video below.

https://www.youtube.com/watch?v=wgNVHGFJLrw

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BRONZEE
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Post by BRONZEE » Mon Jul 10, 2017 7:08 pm

Flick DJZ a pm, just in case he's not watching this post. He might be able to recommend someone in Shakytown.
Next - Z Club events:
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toycollector10
Posts: 94
Location: Christchurch

Post by toycollector10 » Thu Jul 13, 2017 4:39 pm

Photobucket now charging for 3rd party links/hosting. I'm not paying and hope that after the Internet backlash the scheme will be dropped or the price will come down.

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toycollector10
Posts: 94
Location: Christchurch

Post by toycollector10 » Fri Jul 14, 2017 8:16 pm

BRONZEE wrote:Flick DJZ a pm, just in case he's not watching this post. He might be able to recommend someone in Shakytown.
Thanks, Bronzee

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djz
Posts: 849
Location: Christchurch

Post by djz » Fri Jul 14, 2017 8:31 pm

You could talk to Damon at Rocky Auto on Port Hills Road, you may have actually met him at one of the Datsun Club cruises? He's just bought the business but I'm pretty sure he's operating as of now. He's very familiar with L series motors and carbs, he's got a 260C and a 1200 ute.
Nissan 280ZX 2 seater RB26 powered.

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toycollector10
Posts: 94
Location: Christchurch

Post by toycollector10 » Fri Jul 14, 2017 8:34 pm

djz wrote:You could talk to Damon at Rocky Auto on Port Hills Road, you may have actually met him at one of the Datsun Club cruises? He's just bought the business but I'm pretty sure he's operating as of now. He's very familiar with L series motors and carbs, he's got a 260C and a 1200 ute.
Thanks a lot.

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toycollector10
Posts: 94
Location: Christchurch

Post by toycollector10 » Sat May 19, 2018 7:16 pm

I'm slowly getting my mechanical issues sorted out. The (hopefully) last one is this: The car idles well at 900 rpm but when I am slowing down in 5th, 4th or 3rd etc at around 2000 rpm or less it shudders back and forth between the gearbox and differential and it seems to be felt in the universal joints. It's very annoying. Maybe one of the slides is sticking in its body? Do you have any ideas. I have 20 W oil in the carb dampers and they are both at the correct level on the dipsticks.

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nustad
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Posts: 551
Location: Auckland

Post by nustad » Sat May 19, 2018 8:23 pm

Also check the front diff mount as it might be in the driveline?
72 240z plus bits

JonnySpeed
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Posts: 9

Post by JonnySpeed » Mon May 21, 2018 11:20 am

Nice work. Where did you source your engine parts from?

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