Is it best to remove spark plugs when the engine is warm, hot or cold? - Honda-Tech


Is it best to remove spark plugs when the engine is warm, hot or cold?

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 11-05-2008, 03:27 AM   #1
Honda-Tech Member
Thread Starter
 
Hondaisok's Avatar
 
Join Date: Jan 2006
Location: Vermont, USA
Posts: 227
Default Is it best to remove spark plugs when the engine is warm, hot or cold?

I have a 91 hatch std 1.5. I did a search on here, but couldn't find anything related to this. I've got one plug that turns hard when trying to take it out and I don't want to strip it. What engine temp is the best to remove it?
Hondaisok is offline   Reply With Quote
Old 11-05-2008, 06:16 AM   #2
Honda-Tech Member
iTrader: (2)
 
sleepingciv's Avatar
 
Join Date: Apr 2008
Location: warsaw, indiana, usa
Posts: 1,974
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (Hondaisok)

its best to do it when its cold.

in your case if its hard to get out cold try it warm and replace it warm

or if its hard to get out cold ... same as above lol
sleepingciv is offline   Reply With Quote
Old 11-05-2008, 03:37 PM   #3
Honda-Tech Member
 
dacrxguy's Avatar
 
Join Date: Sep 2008
Posts: 1,095
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (honda.lioness)

Quote:
Originally Posted by honda.lioness
From the manual:

"Avoid spark plug removal while the engine is hot. Since the cylinder head spark plug threads are aluminum, the spark plug becomes tight due to the different coefficients of heat expansion. If a plug is too tight to be removed even while the engine is cold, apply a solvent around the plug followed with an application of oil once the solvent has penetrated the threads. Do this only when the engine is cold."

The best "solvent" I have found is called PB Blaster. I highly recommend it. One can buy it at autozone, Wal-Mart, and the like for around $5 a can.

If you strip the threads, I am confident the archives here have a lot of advice.
nuff said theses aluminum heads are really delicate and the best way to fix a striped thread would be removal of the head there is also another proces were u taper the head w/out removal of the head
dacrxguy is offline   Reply With Quote
Old 11-05-2008, 03:59 PM   #4
Honda-Tech Member
 
1990hondacrx's Avatar
 
Join Date: Feb 2007
Location: louisville, ky, usa
Posts: 504
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (dacrxguy)

the guy said he was worried about stripping he didn't say it was striped next time u take the plug out what i have found works really well so it doesn't squeak and act tough coming out apply a little dab of ANTI SEIZE on the threads it will withstand the heat and it will not allow the threads to be dry and hard to turn they will turn very free and work correctly i believe what your experiencing is just dry metal kinda like a squeaky door hinge
1990hondacrx is offline   Reply With Quote
Old 11-05-2008, 04:33 PM   #5
Junior Member
 
jon4honda's Avatar
 
Join Date: May 2008
Location: stuarts draft, va, usa
Posts: 156
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (1990hondacrx)

definatly cold
jon4honda is offline   Reply With Quote
Old 11-05-2008, 04:39 PM   #6
Junior Member
 
accordaffair's Avatar
 
Join Date: Dec 2004
Location: stuart, FL, USA
Posts: 89
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (honda.lioness)

I don't believe pb blaster is a solvent, it's an oil

a solvent would be something like lacquer thinner
accordaffair is offline   Reply With Quote
Old 11-05-2008, 04:54 PM   #7
 
bharry07's Avatar
 
Join Date: Oct 2008
Posts: 8
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (accordaffair)

Do it while cold. This way you don't mess anything up while
torquing them back in.
bharry07 is offline   Reply With Quote
Old 11-06-2008, 03:17 AM   #8
Honda-Tech Member
Thread Starter
 
Hondaisok's Avatar
 
Join Date: Jan 2006
Location: Vermont, USA
Posts: 227
Default Re: Is it best to remove spark plugs when the engine is warm, hot or cold? (jon4honda)

I actually did use antiseize when I installed them, but maybe I'm just a little paranoid about stripping them. I use PB Blaster all the time, so I'll try a little of that first and remove them cold.

I'm guessing its not a good idea to use my electric impact wrench to remove them?
Hondaisok is offline   Reply With Quote
Old 11-06-2008, 04:02 AM   #9
Two Piece
 
Go_Race_Your_Self's Avatar
 
Join Date: Mar 2006
Location: With Beavis and Butthead, DE
Posts: 450
Default

no. use your rachet and extension and the correct spark plug socket
Go_Race_Your_Self is offline   Reply With Quote
Old 11-06-2008, 04:06 AM   #10
Honda-Tech Member
 
EFstyle's Avatar
 
Join Date: Dec 2005
Location: Slinger, WI
Posts: 937
Default Re: (Go_Race_Your_Self)

so what about a comp. test? doest the motor need to be warm?
EFstyle is offline   Reply With Quote
Old 11-06-2008, 09:36 AM   #11
Junior Member
 
accordaffair's Avatar
 
Join Date: Dec 2004
Location: stuart, FL, USA
Posts: 89
Default

I'd agree, I don't see how solvent could help free tight bolts/spark plugs, but pb blaster would
accordaffair is offline   Reply With Quote
Old 11-06-2008, 01:29 PM   #12
Honda-Tech Member
iTrader: (1)
 
zrickety's Avatar
 
Join Date: Oct 2007
Location: Cordele, GA, US
Posts: 1,896
Default Re: (accordaffair)

only cold. i wouldn't even do it warm. a normal rachet works best, and always use a torque wrench putting them back in. set to spec. again COLD

playing with it warm at all is asking for trouble
zrickety is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
best way to remove block coolant drain plug on D series? quapouh Honda Civic / Del Sol (1992 - 2000) 9 07-15-2016 09:57 AM
Mini-me oil jet question Asmooh Honda Civic / Del Sol (1992 - 2000) 3 04-21-2014 09:30 PM
Spark plug removal deerman2701 Honda Civic / Del Sol (1992 - 2000) 7 04-24-2009 08:34 AM
Questions regarding removal of a one piece header nholmes Acura Integra Type-R 23 01-10-2006 09:07 AM
Disabling fuel system? O16581724 5 2 5 Honda Civic / Del Sol (1992 - 2000) 9 09-25-2005 09:16 AM


Tags
96, aluminum, blaster, civic, cold, engines, hard, heads, honda, pb, plug, plugs, remove, spark, tight

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 07:28 PM.



Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.