Best solution to block a coolant nipple.
#1
Senior Member
Thread Starter
iTrader: (1)
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,146
Total Cats: 56
Best solution to block a coolant nipple.
So I dont use the coolant nipple that comes off the back of the 99 heads (maybe all 1.8l heads). I have it blocked off with a rubber vacuum cap and hose clamp. The problem is that ever 6 months (probably 10hrs run time) the thing is rotted out and cracked from the heat and coolant.
I was at the track yesterday and of course it has to let go, so my only option was to take a piece of vacuum line and a bolt and plug it up. So does anyone know of a good solution to block off a coolant nipple that wont rot out. Something that doesn't involve me pulling the head off. This was i don't waste my track time fixing stupid issues.
I was at the track yesterday and of course it has to let go, so my only option was to take a piece of vacuum line and a bolt and plug it up. So does anyone know of a good solution to block off a coolant nipple that wont rot out. Something that doesn't involve me pulling the head off. This was i don't waste my track time fixing stupid issues.
#3
Cpt. Slow
iTrader: (25)
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,360
Total Cats: 1,184
Yeah, those rubber pieces used to fail on me every 4-6 months too. I'm sure there's a high quality silicone piece you can buy, but the easiest method I found was to clamp a short bolt in a piece of high pressure fuel line. That lasted me two years before I pulled the head, and drilled and tapped it.
#4
Yeah, those rubber pieces used to fail on me every 4-6 months too. I'm sure there's a high quality silicone piece you can buy, but the easiest method I found was to clamp a short bolt in a piece of high pressure fuel line. That lasted me two years before I pulled the head, and drilled and tapped it.
i just did this on my protege...having exact same issue as the OP
#6
Former Vendor
iTrader: (31)
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,103
You can either remove the entire fitting and weld up the head, or run a hose around to the water pump inlet in the front. I've started doing the latter after having a bunch of those plugs fail as well.
#7
Boost Czar
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,688
Total Cats: 4,113
Use can use caps, but you must use caps that are rated for coolant, not vacuum caps, which WILL rot and fail.
I have my rear outlet routed to the #1 port on my IM as a solution, since both those caps failed on me at the same time
I have my rear outlet routed to the #1 port on my IM as a solution, since both those caps failed on me at the same time
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM
JesseTheNoob
DIY Turbo Discussion
15
09-30-2015 02:44 PM