Hey guys, Im trying to buy a rad cap for a full aluminum dual core half sized rad I bought. It didnt come with a rad cap.

I look on ebay for 1.3 bar cap and some many different styles and measurements come up, small neck big neck 15mm 9mm 13mm, different shaped heads etc.

Which do we use?

My friend has a half sized but his is a standard type rad, and he uses a cap that has "squared" tabs on the sides, where some I see have fully rounded tabs. He says I need the squared one...

True? Any insight?

 

Take your rad to the local parts place and go get one that fits.
once you know what fits for sure, then you can get one that fits your style...

 

Local places here wont be of any help, nor would they open any packaging for me to test.

Theres gotta be a known type I can use

 

Did you ever test you coil correctly? I went out my way and made a video for you.


Do you have a mechanic/auto shop you like? He should have a coolant pressure test kit like this. Find the one that fits your radiator. Take the one adapter to your auto store and match it.

 

Was the radiator you bought specific for your car? Is it from a known manufacturer?

 

Well its marketed for a civic Im sure, but there is no brand on it or anything

And there arent any mechanic shops in my area im in the boonies, and the one in the closest town is a bunch of crooks

 

So, what makes you think you need a 1.3 Bar radiator cap, and what makes you think a standard Honda Civic cap won't work?

 

Im not here to debate that, but the car is turbocharged and needs a higher pressure cap.

All i need to know with this thread is what type style and size will FIT

 

Do you want a picture of mine. I don't if it will be of much help. I can put a ruler next to it if you want.

dunno what to tell you. I don't think they make radiator caps with dimensions stamped on them like they do your drive belts.

 

Did this radiator ever work? I have installed so many radiators, one time I had one that the mounting point was just so ever slightly off. It took a while to figure out because off course since it was a NEW radiator we did not think that was the problem.

 

Just because your turbo dosent mean you need a aftermarket cap.

 

fullsize can zoom. this what i was talking about. both caps are the same size but one is deeper than the other. The one on the right is for the civic.
https://picasaweb.google.com/1032766...07972863856514



fullsize can zoom
https://picasaweb.google.com/1032766...07961860897922

 

hmmmm so how do people buy aftermarket caps not knowing?

Im sure by looking at my rad neck that I would need the low one you pictured, but not psitive it would fit. Hmmm

This is alot more difficult than i expected

 

For every cap I ever bought I had to say I need a radiator cap for year make model ( 1994 mazda RX-7 ).

If you have an aftermarket radiator you should contact them and ask them what you are suppose to put on there.

 

And this, ladies and gentlemen, is what happens when you buy a no-name radiator.

 

Just wondering how it didn't come with a cap. I've bought 2 Eaby rads and they had caps.
Would explain why I've never heard of anyone having this problem before. But you're right.

 

I got it brand new off of craigslist and the guy said hes had it for years, it was mint condition in box. Just came with no cap, or stampings on the rad to give away brand name or anything

What would a safe bet for a style/type of cap for it be?

 

I have a Mishimoto 19lb on mine.

 

Considering you haven't posted a single picture, we have no clue what a safe bet would be. The box wasn't even labeled?

 

Better yet, have this friend tell you where to get this mythical rad cap.

 

Go to the junkyard and buy a couple. Youl find one that fits and they are a couple bucjs for a coupel of em

 

He wasnt a friend, it was off craigslist

I did try the junkyard, and one off a del sol seems to fit the best, but there were no civic caps at all

Not sure what to do here

 

I thought this was what your friend told you? Ask him to help you source out this cap he claims you need. Otherwise you're just going to have to take a chance and spend some coin.

 

IF it is this much of a PITA I would just buy a new radiator with matching cap and be done with it. Your car should not be down for weeks because of a radiator cap.

 

Would a cap for a 1992-1995 civic 1.6L not work? Is there any difference?
My car is not down, Im obviously not going to swap rads without having a working cap. I might have to ignore your advice to buy another rad, thats just nonsence.

Im just asking for specifically which one I need, figured it would be common knowledge to people that actually own half sized dual core rads.

Thats all im asking for