sohc cut off prob with rebuilt motor - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nd240sx3 · 11-15-2004, 04:31 PM

ok well lookin into buying this 89 coupe sohc. the motor has been completely rebuilt, new pistons, rod, rings, port polished head, the whole nine. well it runs real strong but. while driving once and a while at like 5-5500 rpms the motor cuts out but not completely, its exactly like when u hit 110 and fuel cuts off, but way too early. This doesnt happen all the time though, just once and a while. anyone have any ideas. ok well in case u ask he has all paper work on bebuild so i know he isnt lying. motor has bout 100 mile on it.. well i hope i gave enough info and i hope someone can help, so thanx

nd240sx3 · 11-16-2004, 06:37 AM

i guess no one else has had this prob but me. either that or no one has figured the prob out

*crioten* · 11-16-2004, 07:31 AM

lack of fuel? bad fuel pump?

i dunno....take it to a mechanic (and make the guy pay for it)
they are kind of good at doing things like figuring it out

AKADriver · 11-16-2004, 07:44 AM

Sounds like a fuel problem. Fuel pump, filter, lines.

It could also be as simple as a short in the 5th gear position sensor. If the car thinks it's in 5th gear it will limit revs to 5000 or so.

s14 blacktop · 11-16-2004, 08:03 AM

Just a thought did you change your fuel filter?

11-15-2004, 04:31 PM	#1
nd240sx3 Zilvia Junkie Join Date: Feb 2003 Location: warminster pa Age: 44 Posts: 390 Trader Rating: (0) Feedback Score: 0 reviews	sohc cut off prob with rebuilt motor ok well lookin into buying this 89 coupe sohc. the motor has been completely rebuilt, new pistons, rod, rings, port polished head, the whole nine. well it runs real strong but. while driving once and a while at like 5-5500 rpms the motor cuts out but not completely, its exactly like when u hit 110 and fuel cuts off, but way too early. This doesnt happen all the time though, just once and a while. anyone have any ideas. ok well in case u ask he has all paper work on bebuild so i know he isnt lying. motor has bout 100 mile on it.. well i hope i gave enough info and i hope someone can help, so thanx

11-16-2004, 06:37 AM	#2
nd240sx3 Zilvia Junkie Join Date: Feb 2003 Location: warminster pa Age: 44 Posts: 390 Trader Rating: (0) Feedback Score: 0 reviews	ok then i guess no one else has had this prob but me. either that or no one has figured the prob out

11-16-2004, 07:44 AM	#4
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,518 Trader Rating: (1) Feedback Score: 1 reviews	Sounds like a fuel problem. Fuel pump, filter, lines. It could also be as simple as a short in the 5th gear position sensor. If the car thinks it's in 5th gear it will limit revs to 5000 or so.

11-16-2004, 08:03 AM	#5
s14 blacktop Zilvia Member Join Date: Oct 2004 Location: down south, deep south Age: 44 Posts: 274 Trader Rating: (0) Rides Gallery: s14 blacktop Feedback Score: 0 reviews	Just a thought did you change your fuel filter?