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terry t
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« Reply #15 on: February 25, 2015, 12:57:53 PM » |
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ok after some rooting about it turns out its a small Japanese size radiator cap not standard mini. lowest i can find is 0.9 bar/13lbs.  There saying its for a classic mini so should be 7lb  |
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twisted
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« Reply #16 on: February 25, 2015, 01:27:21 PM » |
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i am going to email the seller to check they have sent me the right one and bring that point up. might have to send it back.
what issues would there be running it on a 13lbs rad cap?
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a man with a fork in a world full of soup
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terry t
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« Reply #17 on: February 25, 2015, 01:55:12 PM » |
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i am going to email the seller to check they have sent me the right one and bring that point up. might have to send it back.
what issues would there be running it on a 13lbs rad cap?
Just checked and from 1970 some minis used 13lb LB11 but they didn't say what year. yes they have 59-72 What engine you got Craig some reliant's rebel and regal used LC2 4lb |
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« Last Edit: February 25, 2015, 01:56:44 PM by terry t »
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twisted
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« Reply #18 on: February 25, 2015, 01:59:47 PM » |
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its a 1978 reliant robin engine. cant find any of these sized caps lower than 13lbs   have messaged the seller saying it looks like they have sent me the wrong one can they send me the right one so will see what they say. thinking about weather to order a different one |
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a man with a fork in a world full of soup
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twisted
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« Reply #20 on: February 25, 2015, 02:37:09 PM » |
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thanks terry but dont think that will work. that looks like it would work on a normal rad to change to a short reach cap but the id of the neck on this rad is only 31mm so that wont fit in. |
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a man with a fork in a world full of soup
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twisted
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« Reply #21 on: February 25, 2015, 07:40:37 PM » |
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So how much is the difference between 0.5bar/7lbs and 0.9bar/13lbs ? I know its 0.4bar you jokers  but what I mean is what difference will it make to the system? If I was to have a cooling problem in the future would that 0.4bar of pressure make much difference? Would it damage the engine before it blew out the overflow? Or would is 0.4bar next to nothing and about 8 seconds of time difference before it blows? Trying to figure out if to buy an other rad and try and send this one back or to run it! |
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a man with a fork in a world full of soup
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fifer
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« Reply #22 on: February 25, 2015, 08:13:49 PM » |
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Later Robins / Rialto use a 13lb cap with a header tank .
The 13 lb pressure cap is on the tank and the blank cap is on the rad .
The header tank only has 2 spouts on it .
The top spout is the overflow if pressure overcomes the cap and has a hose attached to it .
The bottom of the tank spout connects to the overflow spout on the rad.
This means that there is a slightly bigger amount of coolant in the system .
If you have a header tank positioned where the bottom spout on the tank is higher than the top of the rad cap then the small Japanese cap can be modified to become a blank and a standard 13lb or 7 lb cap can be fitted to the header .
I remember someone modified the 1.1 bar cap into a blank cap but that was possibly for use in the standard Robin with the header tank ?
The 13 lb Small Japanese cap should be fine on the alloy rad .
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Confucious ; He say that man who take woman up hill , him not on level
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twisted
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« Reply #23 on: February 25, 2015, 10:30:37 PM » |
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Cheers fifer I will keep this one and just buy the 0.9 bar cap for it instead of another radiator. Just wanted to make sure I couldn't do to much damage. |
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a man with a fork in a world full of soup
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fifer
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« Reply #24 on: February 25, 2015, 10:58:47 PM » |
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When you get the 13lb rad cap and it fits , could you give the link to the company and maybe a wee photo of the cap ?  |
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Confucious ; He say that man who take woman up hill , him not on level
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ROD
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« Reply #25 on: February 26, 2015, 07:33:07 PM » |
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How did this set up with new rad work then ? Just as a matter of interest.is the rad at correct height.As you prob know, mine wasnt and it spat coolant out when running at the same speed yours did, just the same as yours did.Im very interested in your results!
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twisted
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« Reply #26 on: February 27, 2015, 09:35:56 AM » |
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fifer i will do mate rod. i have not fitted it yet. just waiting on fan (hope it will come today) and hope to fit it all on saturday after i have done some bits at work. will let you know how it goes. will check rad but she has been running fine up until recently so am certain its good. ran from me down to loonies workshop not long ago at steady 65mph pretty much all the way, 45miles, and no issues. |
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a man with a fork in a world full of soup
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ROD
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« Reply #27 on: February 27, 2015, 11:25:06 AM » |
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What height is the rad top spigot compared to the thermostat housing spigot? Also, watch out for hoses collapsing internally, but look ok on outside. If mine proves ok, I may arrange to come over to compare notes.
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twisted
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« Reply #28 on: February 27, 2015, 12:14:04 PM » |
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yeah not a problem Rod anytime you think you want to come over just give me a shout from the top of the rad cap to the thermostat housing (the molded part that houses the stat and is part of the head (measured to here because its a custom stat housing)) is about 14-15cm. was just a quick measure because i am at work  and a picture to help.  new mini/robin radiator thats what it is at mo. dont think it will be much different with new rad. it has been running sweet for around 10 months so dont think its is a height issue. fan has arrived and even off a 9v battery it seems to have some good pull to it  so plan to fit all tomorrow as long as work does not get in the way to much and no disasters. |
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a man with a fork in a world full of soup
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digger06
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« Reply #29 on: February 27, 2015, 02:40:47 PM » |
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I have that fan on my kit car, due to space it is in front of rad and pushes air through rad. I was warned this is not the best way to do it,
why not? did he give a reason? most big cars have this method nowadays with no probs, I used this method on my last trike, like you, no issues, |
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