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 Post subject: leak?
PostPosted:Sun Jan 02, 2011 9:01 pm 
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Big Block

Joined:Sun Aug 08, 2010 11:18 am
Posts:148
Car Details:Camaro 1977 LT 305CI V8 small block
Location:Leicester
Hi,

On the left hand side of the firewall towards the bottom there is a box bolted on and it's leaking a clear fluid out of the bottom and the fluid is hot.
I'm guessing it's coolant, but if anyone can confirm or point me in the right direction, before i open it up to investigate.

Many thanks from Luke


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leak?

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 Post subject: Re: leak?
PostPosted:Sun Jan 02, 2011 11:28 pm 
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Big Block

Joined:Sat Oct 30, 2010 9:56 pm
Posts:268
Car Details:hi i have had my 70 z28 for bowt 5years now when i got it it needed a full resto an now am finaly geting to the end just have a few more bits to find and i cant wait till shes dne.
Location:north east
hi if its the box iam thinking of your heater matrix is in there check your floor they normaly leak in there to.


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 Post subject: Re: leak?
PostPosted:Mon Jan 03, 2011 9:31 am 
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Big Block

Joined:Sun Aug 08, 2010 11:18 am
Posts:148
Car Details:Camaro 1977 LT 305CI V8 small block
Location:Leicester
Yes it is dripping from the passanger side floor aswell. I guess it's either a hose or the element?. Is there anything i need to look out for when i remove the box cover?

Thanks


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 Post subject: Re: leak?
PostPosted:Mon Jan 03, 2011 1:41 pm 
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Big Block
User avatar

Joined:Tue Feb 23, 2010 12:40 pm
Posts:3245
Car Details:'79 Camaro, 350 V8
Location:South Bucks
definately your heater box. Just pull out the 2 hoses going to it. may need to apply some force / leverage and there is a high chance of getting coolant splashed everywhere so cover up areas you want to keep dry! once that is done, unplug the orange wire that goes to the blower, this is located on the left hand side and again, will need some force to get it out. Then undo the 6 nuts on the engine bay side, pull out that panel, you will now see into the back of the matrix. Go into the passenger side and unclip the cable clip that sits on the top middle of the heater box. pull out the heater box, should have to tilt slightly upwards as the heater hose inlets are angled, then you can pull it out completely.
Good luck, let me know if you need anything more, i've got all that dissasembled but in rough place in case you have any questions. cheers!

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 Post subject: Re: leak?
PostPosted:Mon Jan 03, 2011 4:59 pm 
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Big Block

Joined:Sun Aug 08, 2010 11:18 am
Posts:148
Car Details:Camaro 1977 LT 305CI V8 small block
Location:Leicester
Hi,

Thanks for that :thumbup: , ive now got the nuts off. But the box seems to be stuck down with some kind of sealent. So will need to break the seal and pull out.
Will let you know how i get on

Thanks from Luke


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 Post subject: Re: leak?
PostPosted:Mon Jan 03, 2011 8:22 pm 
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Big Block
User avatar

Joined:Tue Feb 23, 2010 12:40 pm
Posts:3245
Car Details:'79 Camaro, 350 V8
Location:South Bucks
Ah yes, that'll be the silicone / butyl seal to keep the weather out. Scraper and or flathead screwdriver should do the trick. I've scraped the whole lot off the heater and the firewall, using Granville silicone sealant when it goes back on. this will stay flexible and give you a seal. fiver from halfords : http://www.halfords.com/webapp/wcs/stor ... RRWidgetID

Let us know how you get on with the leak. I'm guessing 2 things... there is a blockage build up causing too much pressure so it's leaking at a joint, or there's a crack in the matrix.

Cheers,

Ray

_________________
How to post pics: When writing a message, scroll down and use the "attach file" option. Where possible, a photo sharing service can be used such as Flickr, Imgur etc. The image location (usually ending in .jpg) can be copy and pasted between the ][ brackets that appear when you click the 'Img' button (you can find this button at the top of the message box).

How to post youtube vids: Click on the 'youtubeHD' button at the top of the message box and in the middle of the ][ brackets that just appeared, copy and paste everything from the youtube web address that appears after the = sign i.e if this is the url: https://www.youtube.com/watch?v=K2cNqaPSHv0 just copy "K2cNqaPSHv0").


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 Post subject: Re: leak?
PostPosted:Mon Jan 03, 2011 9:07 pm 
Offline
Big Block

Joined:Sun Aug 08, 2010 11:18 am
Posts:148
Car Details:Camaro 1977 LT 305CI V8 small block
Location:Leicester
That will be my job next weekend to get the box off and see where the leak is comming from, will post my findings.
Many thanks for your assistance

cheers from Luke


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 Post subject: Re: leak?
PostPosted:Tue Jan 04, 2011 10:27 pm 
Offline
Big Block

Joined:Sat Oct 30, 2010 9:56 pm
Posts:268
Car Details:hi i have had my 70 z28 for bowt 5years now when i got it it needed a full resto an now am finaly geting to the end just have a few more bits to find and i cant wait till shes dne.
Location:north east
hi if its a matrix you need they are for sale on ebay and i think its chevy motors selling them.


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 Post subject: Re: leak?
PostPosted:Sun Jan 09, 2011 10:07 am 
Offline
Big Block

Joined:Sun Aug 08, 2010 11:18 am
Posts:148
Car Details:Camaro 1977 LT 305CI V8 small block
Location:Leicester
Removed the heater box yesterday and it's the Heater core which is leaking. So will contact Chevy Motors about a replacement.
Thanks for all your help :thumbup:


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