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Engine & Drivetrain

Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.

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"New" Green 73

February 1, 2004 by 2Forty
3 replies

1.7k views
I picked up a Green 73 on Ebay 2 weeks ago. My father-in-law flew to Little Rock to pick it up and drove ot home for me. "No rust" is what the ad said and "No Rust" is what I found. Also no carpeting, just rubber mats. Has a Griffith aluminum radiator with electric fan. Alternator bearing went out in New Mexico and Don removed the alt fan and then shimmed and bolted pulley back on. Replaced broken driver's side exterior door handle yesterday and will attempt alternator and radiator back to stock if Superbowl doesn't interfer. Failed Arizona emission test, runs richer than Bill Gates. Has flat tops. But I have a Z to drive.

Last reply by 2Forty, February 2, 2004
280zx front pulley: turf or keep?

January 28, 2004 by speedyblue
1 reply

991 views
I'm swapping an L28 straight from a 280zxinto my 240Z. Should I swap the front engine pulley with the 240z one or just keep the 280zx one? The 280zx one seems chunkier. How do they hold at high revs?(7000rpm only, not trying to kill the engine here) I have a vauge memory of someone saying they don't cope with the revs. Thanks Scott

Last reply by Ed, February 2, 2004
280C Engine

January 16, 2004 by biker
8 replies

1.7k views
I have been offered a motor out of a 280C which was a Datsun Sedan around the early 80's vintage. Can this motor be done up for maximum horsepower for a Z. Thanks Biker

Last reply by JMT240KGTR, February 2, 2004
Aviation Fuel 1 2

January 19, 2004 by Zrush
15 replies

2.4k views
Whats anybodys opinion on running aviation fuel in their Z. The local airport (not a major airport) has fuel with a 110-112 octane rating. Would you mix half with pump gas (93 octane) or would you run a tank full of 110 octane every once in a while. I've always heard that you should run the highest octane available from the pump in our Z cars.

Last reply by TomoHawk, February 1, 2004
L28 engine stats...

January 28, 2004 by mellow
9 replies

5.1k views
Hey Zedheads! i need a few stats for an L28 injected engine... what i need are Torque settings for: *Big end bearings *Mains *Head bolts also i need measurements for: *Ring end gap *Bearing to journal clearance thanks once again, mellow:dead:

Last reply by Ed, February 1, 2004
Diesel Z

January 30, 2004 by NickF
3 replies

1.3k views
www.veggicar.com

Last reply by seerex, January 31, 2004
exhaust

January 30, 2004 by grnskyline
2 replies

985 views
hi guys, I have just put an l28 in to my 260, after pulling the old blown one out. So far so good right. bought some extractors to fit on and then realised the delema. the extractors and factory exhaust are the same size but I have no way of joining the two together once I bolt the extractors on. The extractors have been cut, it looks like. I thought about cutting the exhaust and then joing the two with a round bit of metal where the two would match up. I dont have welding devices or angle grinders at my disposal. Any ideas? hacksaw? thanks cam finnally found z one

Last reply by frank13, January 30, 2004
240 motor in a 280?

January 25, 2004 by gator
7 replies

1.3k views
If I buy a 77 280 ..can I put a 240 motor it? if yes ..what will it take and what needs to be altered .. I know anything can be done..I am just wondering about easy bolt ups. Thanks ..Bruce PS ..I have a line on a 280 2+2 ..cheap in rough shape .. and may buy it anyway.

Last reply by beandip, January 29, 2004
Ditributor Problems

January 2, 2002 by snootcheez
5 replies

1.6k views
I have a 73 240 with the stock ign system-the vaccum advance is sticking-removed the baseplate assembly and it binds bad-anyone have any advice on how to fix or should i just replace it or upgrade to electronic ign? thanks for any help-kris

Last reply by beandip, January 28, 2004
Rebello Link

January 27, 2004 by texasz
3 replies

1.2k views
Ok, I can NEVER find the link to Rebello's website when I want it. This time I'm bookmarking it! Can anyone post the link please? Why don't we add this to our Links page? I looked under Z Car Businesses and didn't see it.

Last reply by Bambikiller240, January 27, 2004
De-smogging an L28 engine

January 26, 2004 by TomoHawk
0 replies

1.3k views
I think my 1978 L28 engine still has the EGR valve, according to the picture in the Haynes book. Does on the fuel-injected L28 engine need this? I could probably take it off, but it's supposed to be connected to a "vacuum switching valve"? I was thinking that I could block off the hole where the EGR valve was. Can I get some enlightenment? thx. At least there's no smog pump.

Last reply by TomoHawk, January 26, 2004
SplitFire 3 Spark Plugs

January 20, 2004 by Zrush
8 replies

1.7k views
While flipping through the Summit catalog I see the SplitFire 3 spark plugs at $5.99 each. Has anyone used these on their Z and if so, did you notice any difference, then say from the NGKs or whatever other brand you were using? $5.99 is a bit pricey so I would like to know if you guys think they are any better then NGKs.

Last reply by ZmeFly, January 26, 2004