Where to buy rubber nipples?
 

I need two rubber nipple caps to cap a few coolant nipples. They need to be around 1 inch od and I can't find them anywhere.

Can you guys help?

Is there actually going to be coolant touching the nipples?

If not, go to the aisle in walmart that has shit for tables, stools etc, you can find some 1 inch o.d. caps there.

maybe some walking cane ends/caps

I hear there are giant rubber people living in a small island near the Netherlands?

BOO!! :)

They have 1" rubber nipples at PEPBOYS, they are in the help section.

Yes, coolant will be touching the cap. You know the coolant nipple on the driveside of the motor right below the oil filter pedestal......... well that's what I need to cap along with another one of the waterpump. I removed my heater core so I need to cap those off.

These need to hold temperature and pressure.

Anyone know where I can find these?

Cut off the end of the hose (about 2" - 3"), insert an appopriate size hex bolt and use hose clamps to seal the connections. If you can't locate a large enough hex bolt, you can use steel rod cut to length or a pipe cap.

Simple ditch the water pump and thermostat housing like a real man and run an EWP. You'll lose even more weight.
https://img107.imageshack.us/img107/...m0007305jd.jpg
https://img107.imageshack.us/img107/686/im0007297co.jpg
http://img351.imageshack.us/img351/5...07482fb.th.jpg
Leave the nipples to the kiddies you silly rabbit!

That's my last resort but I'd like to get something a little better looking.

Where did you buy that? I don't see your EWP?

The block adapter I bought through Summit, I then got AN to hose adapters, but since have ditched that setup for a custom -20 AN adapter, hose and line setup. Along with a custom triple pass, dual core, 26x19x3 radiator with -20 AN male fittings on the end tanks and the required sensors mounted in the end tank.
It's run with a Davies Craig EWP and controller.

You can see the EWP on the right in this picture with the yellow zip tie while I was mouting it.
https://img135.imageshack.us/img135/...sc001965nu.jpg

I can't see shit from that picture. I'll take a look at summits site for that adapter. I'm still going to need the nipples for the time being. I need to get my car out to the track before I start anymore projects.

Anyone know where I can get some BIG NIPPLES? Besides from Big Shirley!

Advanced Auto Parts has them but the quality sucks so you would need to replace ever so often.. The thermostat housing one is about 1/4" larger than the rear one.

Well, I'll check advanced autoparts but I can't put something on that will break. I'd hate to be travel 140mph plus and have coolant spray everywhere.

Anyone else know if I can order these somewhere?

Just loop them for the time being.

Well, I'd like to find some rubber nipples for the time being :) :)

I need some big rubber nipple caps!

Have you looked at mcmaster parts beginning in 92805K ? They have a range of sizes in silicone that are rated for 600 F. The link is here http://www.mcmaster.com/nav/enter.asp?pagenum=3547 . Also, they should be able to get it to you overnight.

I did a quick ebay search for ya and found this:

http://cgi.ebay.com/1-BLACK-RUBBER-2...QQcmdZViewItem

I wouldn't use any rubber caps from an auto parts store for more than temporary. I've seen them fail in just a few months from heat.

McMaster-Carr is the way to go. I bought some high-temp vacuum caps from them a while back, and they're still pliable and in great shape.

The bolt/hose/hose clamps method works VERY well - not super clean, but it's VERY failproof.

Dale

I couldn't find anything on there and the caps that I did find, you have to buy them 100 at a time. :rlaugh: I don't need that many :rlaugh:

Can you shoot me a link to the ones you bought?

Thanks.

Look up two posts, I gave you a link

What the hell, I'm blind!!!!!!!!!!!11


Oh and Rich , thanks for the link. That should go well with my leather buttless chaps! :redface:

It says high temp but I wonder if it will have problems holding pressure????????

I can't make any guarantees. I would suggest calling mcmaster and asking if they have any data or know anyone that does. I have used some of the smaller sizes of that part and they're pretty robust.

Did you use it for coolant?

Man you've had your fd for at least 8 yrs or more, that includes the one you wreck. Shouldn't you know where to find stuff for it by now, I do recall you saying that you work on these cars at one point.

I've never had to buy BIG BLACK RUBBER NIPPLES THOUGH......

I can always learn something new :)

I have not used them on the pressurized coolant system, but I have had them in contact with coolant for a while without any problems. I'm using them right now to cap some of the intake nipples, but I've only boosted up to about 10 psi since I've been using them. No problems there.

Use braided line an loop it.

Braided line weighs too much. I'm going to try the nipples :rlaugh:

I PM'd this to Lupe -

http://www.mcmaster.com/nav/enter.asp?pagenum=3547

That's the page with the vacuum caps and whatnot on McMaster-Carr. It's tricky to find for no good reason. They have silicone and EPDM - I bought a bunch of EPDM caps to use for vacuum caps - they work great so far, hold up to the heat well.

Dale

Haha apparently both of you guys are having trouble reading today

I believe the "Help!" plugs are EPDM as well. It says it on the back of the packaging. I originally used them in my AST elimination and after a few months, they started swelling and cracking.

I replaced them with the hose and stainless steel bolt method. No leaks nor swells and it's been a few years now.

I don't know if the McMaster EPDM ones will hold up or not, but I think I'd opt for the silicone ones if I were to try.

Just my $0.02.

I popped some smaller HELP! ones on my AST elmination about 7 years ago. Then I did the hose-bolt-and-two-hose-clamps thing and they have been fine ever since.

LUPE, for nipples that large, I wouldn't trust any soft caps. I would either do a loop with fabric-reinforced hose, or pull the nipples out of the block and thread the holes for pipe plugs.

If you do end up using caps, slide something hard into the nipple and seal it in there with silicone. Then put the cap over it. Hopefully, the cap will never really have to hold the pressure or degrade from coolant and whatever settles in those dead-end passages.

-Max

A wide selection of rubber nipples can be found here.

Why not just crush the tube and weld it shut? Besides that I'd use the silicone caps if you want something reversible. I wouldn't trust rubber for any extended period in this case.

I bought the silicone caps from Mcmaster. They are very thin so I had to double them up.

They've lasted for some idling and some testing on the 2 step :)

I decided to user the silicone caps so that if I ever decide to sell the car, the option to put the heater back in is still open.