Notices
Engine & Drivetrain VQ Power and Delivery

Running motor without radiator?

Thread Tools
 
Search this Thread
 
Old 02-17-2013, 12:05 PM
  #1  
gregom
Registered User
Thread Starter
iTrader: (3)
 
gregom's Avatar
 
Join Date: Feb 2008
Location: Boise, Idaho
Posts: 1,274
Likes: 0
Received 0 Likes on 0 Posts
Default Running motor without radiator?

My Z has been sitting 3 years since I wrecked it, due to the situation i'm not willing to fix it and drive it... long story for another time. Anyway, I pulled the damaged radiator and AC condenser out and it is sitting in a friends garage ready to receive new parts. I haven't bought replacement parts yet, again, part of the long story. I changed the oil in the motor two and a half years ago and I go out once a month and start the motor and let it run for about 2 seconds.

My question is, not being a expert on engines, would it harm the motor to drive it around the block without the radiator? Just a two minute drive... probably a stupid idea but i'd like a technical response from those of you with knowledge in this area.
Old 02-17-2013, 12:08 PM
  #2  
AshMan
Club Moderator
the Hot Spot
iTrader: (1)
 
AshMan's Avatar
 
Join Date: Aug 2008
Location: Santa Fe, TX
Posts: 1,150
Likes: 0
Received 0 Likes on 0 Posts
Default

Wow... no
Old 02-17-2013, 01:15 PM
  #3  
bealljk
350Z-holic
Moderator
iTrader: (13)
 
bealljk's Avatar
 
Join Date: Apr 2010
Location: North Denver
Posts: 6,404
Received 1,301 Likes on 1,025 Posts
Default

probably not…but I wouldnt stretch it too much longer than a few minutes.
Old 02-17-2013, 06:37 PM
  #4  
binder
New Member
iTrader: (8)
 
binder's Avatar
 
Join Date: Jan 2007
Location: terre haute, IN; STL, MO
Posts: 6,457
Likes: 0
Received 7 Likes on 6 Posts
Default

Not a high chance to cause damage but I would never risk it.

Also, starting an engine for 2 seconds is the worst thing you could do for it. That's like continuously doing cold starts and never letting the engine warming to operating temp in order to be properly lubricated. Horrible engine wear. Either start it enough to let the lubrication get through the engine or put some fog oil in the cylinders to leave it in storage.
Old 02-17-2013, 06:43 PM
  #5  
terrasmak
Super Moderator
MY350Z.COM
Premier MemberSuper Moderator
iTrader: (8)
 
terrasmak's Avatar
 
Join Date: Jan 2007
Location: Sin City
Posts: 28,781
Received 2,333 Likes on 1,681 Posts
Default

I would let it idle for no more than 1 minute, do not drive , do not put under load. Your temp gauge will not work, there is no fluid touching the sensor.
Old 02-18-2013, 12:03 PM
  #6  
gregom
Registered User
Thread Starter
iTrader: (3)
 
gregom's Avatar
 
Join Date: Feb 2008
Location: Boise, Idaho
Posts: 1,274
Likes: 0
Received 0 Likes on 0 Posts
Default

Wow thanks for the responses. I though i was doing good by starting it up for a few seconds, thought i would be getting oil all through the engine. I think ill just buy a radiator then flush and refill and bleed. I dont want to cause any damage to the engine. But letting it sit for long periods of time is bad too...
Old 02-19-2013, 06:41 AM
  #7  
binder
New Member
iTrader: (8)
 
binder's Avatar
 
Join Date: Jan 2007
Location: terre haute, IN; STL, MO
Posts: 6,457
Likes: 0
Received 7 Likes on 6 Posts
Default

Originally Posted by gregom
I dont want to cause any damage to the engine. But letting it sit for long periods of time is bad too...
Not if properly stored.

Cold start is the most damage you can do to an engine. It takes at least a few seconds for the oil pressure to even stabilize in the engine.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
XM 1
Engine & Drivetrain
29
07-10-2022 07:44 AM
apex locator
Autocross/Road
10
07-23-2021 02:27 AM
MM'08_350Z
VQ35HR
225
04-22-2021 09:42 PM
SharX59
Engine & Drivetrain
7
09-30-2015 10:54 AM



Quick Reply: Running motor without radiator?



All times are GMT -8. The time now is 08:47 PM.