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Topic: 24v radiators (Read 988 times) |
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Chieftain
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Mechanically Challenged with a 24V Cosworth
 
Posts: 491
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24v radiators
« on: Jul 13th, 2010, 6:47am » |
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Seen on here several times mention of "bulged" rads on the cossie. Is the bulge at the bottom? i ask as I have been loosing coolant for a while but could not find the leak. yesterday doing the oil change thought the rad looked a strange shape and when I squeezed the bottom hose part of it moved (rad) and small ammounts of coolant leaked out.
How easy a task is it to replace the rad and where is the best source for replacements?
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Bob
if it ain't broke fix it and it will be
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Tons_of_fun
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Mmmm...Xena !
Posts: 978
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Re: 24v radiators
« Reply #1 on: Jul 13th, 2010, 8:11am » |
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Speaking from experiance...... Not too bad a job. First thing to do is get the front of the car as high as possible ( i had a pair of 500mm high ramps ). Next get yourself a large container to drain your coolent into. Place container under the bottom hose of the radiator. Slacken bottom hose & remove from radiator SLOWLY ( prepare to get a wet sleeve  ). When all coolent has drained undo the gearbox coolent pipes just above the bottom hose outlet ( be prepared for a small amount of oil to leak out ). Next crawl out from under the car & have a cup of tea  . Remove the radiator top hose & return hose from the expantion tank ( carefull not to break the male union on the bottle ). Reach down the fan shroud & un plug the fan connections ( there's 2 of em ). Ok back under the car & with the aid of a support ( i used a trolley jack & block of wood under the radiator ) undo the 2 mounting bolts either side of the rad ( these will most certainly be rusted & may well snap... Been there got the t-shirt ) Let the jack take the weight of the radiator while you ease the rad out of the top support mounts ( 2 pegs going through the slam panel ). You may have to manouver the radiator through some oil cooler hoses, but be gentle & it will come out eventually. When out hold it above your head whilst making 'Tarzan' noises ( well it worked for me ) to celebrate your achievment. Have another cup of tea, swap the fans over & repeat the process in reverse. A word of warning though, when refilling the system with coolent make every effort to avoid an air lock in the system. I had a really bad lock up & it frightened the life out of me. Turned out ok in the end though. All the best bob, take your time & it will be ok... Craig
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Simmo
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I'm an OAP !
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Re: 24v radiators
« Reply #2 on: Jul 13th, 2010, 8:24am » |
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Before re-fitting a new one you might do well to look a bit lower on the page at a post by Highlander and Gozz Here about using the 16v rad. As you may be aware the 'debate' about the cause of bursting 24v rads has run for as long as I can remember. From what'Tarzan' says it seems to be a job you don't want to repeat! .
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Chieftain
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Mechanically Challenged with a 24V Cosworth
Posts: 491
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Re: 24v radiators
« Reply #3 on: Jul 13th, 2010, 9:26am » |
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on Jul 13th, 2010, 8:11am, Tons_of_fun wrote:| Speaking from experiance...... Not too bad a job. First thing to do is get the front of the car as high as possible ( i had a pair of 500mm high ramps ). Next get yourself a large container to drain your coolent into. Place container under the bottom hose of the radiator. Slacken bottom hose & remove from radiator SLOWLY ( prepare to get a wet sleeve ). When all coolent has drained undo the gearbox coolent pipes just above the bottom hose outlet ( be prepared for a small amount of oil to leak out ). Next crawl out from under the car & have a cup of tea . Remove the radiator top hose & return hose from the expantion tank ( carefull not to break the male union on the bottle ). Reach down the fan shroud & un plug the fan connections ( there's 2 of em ). Ok back under the car & with the aid of a support ( i used a trolley jack & block of wood under the radiator ) undo the 2 mounting bolts either side of the rad ( these will most certainly be rusted & may well snap... Been there got the t-shirt ) Let the jack take the weight of the radiator while you ease the rad out of the top support mounts ( 2 pegs going through the slam panel ). You may have to manouver the radiator through some oil cooler hoses, but be gentle & it will come out eventually. When out hold it above your head whilst making 'Tarzan' noises ( well it worked for me ) to celebrate your achievment. Have another cup of tea, swap the fans over & repeat the process in reverse. A word of warning though, when refilling the system with coolent make every effort to avoid an air lock in the system. I had a really bad lock up & it frightened the life out of me. Turned out ok in the end though. All the best bob, take your time & it will be ok... Craig |
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Thanks for explanation Tons, only dissapointing part of it was the fact that only two cups of tea are mentioned. Any suggestions on best place to get a rad?
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Bob
if it ain't broke fix it and it will be
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Tons_of_fun
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Mmmm...Xena !
Posts: 978
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Re: 24v radiators
« Reply #4 on: Jul 13th, 2010, 4:45pm » |
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I had mine re cored by a local firm here in Birmingham ( Ready rads ). A very clever chap who was well versed with the balooning rad issue in 24v's. I had an uprated 48mm core fitted ( had to wait an extra week for the core to arrive from germany ) & am happy to report no cooling problems what so ever Best thing though was the price....... £110 + vat ( or there abouts ) . Shop around m8. There are loads of re core places about, although past experiance tells me to avoid anything to do with courier services..... The last courier who delivered me a rad played football with it 
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Snoopy
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Very old.BAD tempered and missing friends.
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Re: 24v radiators
« Reply #5 on: Jul 13th, 2010, 6:32pm » |
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Here is a write up of replacing the Radiator on the 12v and it is the virtually the same for ALL the models
RADIATOR ARTICLE
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