Drag Racing Drag Racing (legal) & Associated Topics

Capping Coolant Lines?

Thread Tools
 
Search this Thread
 
Old May 11, 2011 | 06:47 PM
  #1  
theidealone's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2007
Posts: 954
Likes: 2
From: Centennial, CO, 80121
Default Capping Coolant Lines?

Im sure this isnt the right forum to post in, but...

Considering there are more people here that dont run a thermostat, and more people that have a clue, I figured this was the best place to get an answer. If its not ok, please move it. Thanks.

I dont have a thermostat. So I dont have a need for the thermostat bypass hose, or the heater hose. Right now I have them looped, but I hate how cluttered the bay is, and want to clean it up.

Is there a good cap, or good method to capping off coolant lines? Or is my best bet, to weld up the ports that the hoses connect to?
Reply
Old May 11, 2011 | 07:16 PM
  #2  
redboost10's Avatar
Honda-Tech Member
 
Joined: Sep 2003
Posts: 7,056
Likes: 0
Default Re: Capping Coolant Lines?

for the heater hoses, i pulled the brass nipple out and drilled/tapped it. for the one on the head, just find a plug the right thread
Reply
Old May 12, 2011 | 06:38 AM
  #3  
slobalt77's Avatar
Honda-Tech Member
 
Joined: Nov 2008
Posts: 127
Likes: 0
From: harrisburg, pa
Default Re: Capping Coolant Lines?

got some big rupper caps, a bit of black silicon and hose clamp. no issues.
Reply
Old May 12, 2011 | 06:46 AM
  #4  
MR.johnson's Avatar
Honda-Tech Member
 
Joined: Feb 2007
Posts: 4,399
Likes: 2
From: in the sticks
Default Re: Capping Coolant Lines?

weld them. caps crack over time.
Reply
Old May 12, 2011 | 10:09 AM
  #5  
.adam.'s Avatar
Honda-Tech Member
 
Joined: Jun 2005
Posts: 1,110
Likes: 0
From: Elyria, OH, US
Default Re: Capping Coolant Lines?

so its cool to block that bypass hose as long as you dont run a tstat? i wasnt sure if it was ok since it was coming off the head and might block flow or something.....
Reply
Old May 12, 2011 | 12:52 PM
  #6  
CO_RaceFab's Avatar
Honda-Tech Member
 
Joined: Oct 2005
Posts: 1,132
Likes: 1
From: greeley, co, usa
Default Re: Capping Coolant Lines?

Only hoses I have are the radiator hoses everything else is welded shut I do this on all the shop cars
Reply
Old May 12, 2011 | 01:30 PM
  #7  
theidealone's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2007
Posts: 954
Likes: 2
From: Centennial, CO, 80121
Default Re: Capping Coolant Lines?

Well lets make mine a shop car! LOL.
Reply
Old May 12, 2011 | 01:37 PM
  #8  
jdm inc's Avatar
Honda-Tech Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 3,096
Likes: 5
From: KS
Default Re: Capping Coolant Lines?

i just welded mine shut also.
Reply
Old May 12, 2011 | 04:13 PM
  #9  
SPOOLINmatt's Avatar
Honda-Tech Member
 
Joined: Mar 2004
Posts: 7,913
Likes: 0
From: North Georgia/Atlanta
Default Re: Capping Coolant Lines?

you can close the heater hose port on the head using a rocker rail retainer plug. then you need to weld/seal up the water neck hose ports. I wish someone would sell a silicon water port cap...I just replace mine whenever i see wear on them. I use caps on thermostat housing. So i have no tstat and just the 2 main radiator hose.
Reply
Old May 12, 2011 | 05:32 PM
  #10  
theidealone's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2007
Posts: 954
Likes: 2
From: Centennial, CO, 80121
Default Re: Capping Coolant Lines?

What caps do you use? Ive got a D series, so I dont know if the ports are all the same or not.

Yea, itd be awesome if someone made a silicone cap.
Reply
Old May 13, 2011 | 03:49 AM
  #11  
2point2's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Nov 2003
Posts: 5,986
Likes: 2
From: Kitchener, Ontario, CANADA
Default Re: Capping Coolant Lines?

Re the heater hoses, you can find big rubber caps that fit nice and snug in the those red "HELP!" packages at almost all parts stores (you probably walked past them 500 times lol). Not as nice as welding shut, but they do the trick for the budget racer.
Reply
Old May 13, 2011 | 03:34 PM
  #12  
MR.johnson's Avatar
Honda-Tech Member
 
Joined: Feb 2007
Posts: 4,399
Likes: 2
From: in the sticks
Default Re: Capping Coolant Lines?

Originally Posted by SPOOLINmatt
you can close the heater hose port on the head using a rocker rail retainer plug. then you need to weld/seal up the water neck hose ports. I wish someone would sell a silicon water port cap...I just replace mine whenever i see wear on them. I use caps on thermostat housing. So i have no tstat and just the 2 main radiator hose.
good info about that rocker plug.
Reply
Old May 13, 2011 | 08:38 PM
  #13  
ej1serge's Avatar
Honda-Tech Member
 
Joined: Feb 2007
Posts: 1,380
Likes: 0
From: Oxnard, CA
Default Re: Capping Coolant Lines?

what i did was ghetto but i needed a quick fix since i heard that the caps crack and shoot out all the coolant, what i did was cut the hose leaving enough to be able to clamp something and that something was a spark plug lol i just shoved a spark plug in the hose and used a regular hose clamp, it's worked great, never leaked once, i ran it that way for about 7 months.. ghetto but it worked.. i trusted that more than a cap..

now that i got the motor apart and ready to be rebuilt i had them all welded shut



also i have a question, what about the hoses coming out of the intake manifold on b16/itr heads, ive seen people tap them and put like AN or NPT plugs on them but would i run into any overheating issues? the car wont be a daily driver anymore but i would be driving it around town on weekends just wanna be sure it wont be overheating at every red light or anything..
Reply
Old May 13, 2011 | 08:42 PM
  #14  
theidealone's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2007
Posts: 954
Likes: 2
From: Centennial, CO, 80121
Default Re: Capping Coolant Lines?

Yea, I put a vacuum cap on one of my water pipe nipples, and it shot off in the first 8 miles, drained the block, and blew my head gasket, on a fresh build. So I put a hose on it, put a bolt in that, and clamped it. Havent had an issue since. I guess I could do that with a really big bolt, for the heater hoses.
Reply
Old May 13, 2011 | 08:46 PM
  #15  
ej1serge's Avatar
Honda-Tech Member
 
Joined: Feb 2007
Posts: 1,380
Likes: 0
From: Oxnard, CA
Default Re: Capping Coolant Lines?

yeah i was looking for a big bolt to shut mine cuz thats how i ran the nipples coming off the water pipe, i just stuck a M8 bolt in there and clamped it, but since i didnt have a bolt big enough to shut the larger hose with my neighbor suggested using a spark plug and it fit snug lol
Reply
Old May 13, 2011 | 10:50 PM
  #16  
CO_RaceFab's Avatar
Honda-Tech Member
 
Joined: Oct 2005
Posts: 1,132
Likes: 1
From: greeley, co, usa
Default Re: Capping Coolant Lines?

Rubber **** will explode period. Bring me you ports and water pipe ill weld it all shut
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
imbest123
Honda Civic / Del Sol (1992 - 2000)
10
Dec 8, 2010 08:15 AM
zdizzle
Tech / Misc
9
Mar 10, 2008 10:50 AM
92SleeperH23
Honda Prelude
4
Sep 2, 2005 05:55 PM
crxb20ed
All Motor / Naturally Aspirated
2
Jan 5, 2005 12:22 PM
Paprika
Honda Civic / Del Sol (1992 - 2000)
5
Dec 21, 2004 04:51 AM




All times are GMT -8. The time now is 11:17 PM.