Prev: The Most Powerful Natural Penis Enlargement Technique
Next: What I learnt from charging my Prius
From: Ray O on 4 Jan 2010 01:17

"Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
news:pan.2010.01.03.23.39.59.978175(a)e86.GTS...
> On Sun, 03 Jan 2010 21:39:34 -0600, Ray O wrote:
>
>>
>> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
>> news:pan.2010.01.03.22.34.04.865983(a)e86.GTS...
>>> On Sun, 03 Jan 2010 21:06:07 -0600, Ray O wrote:
>>>
>>>
>>>> "msrdude" <kimiga(a)gmail.com> wrote in message
>>>> news:cc12db50-e9ce-4a9c-8b6d-47e366fe8b06(a)l30g2000yqb.googlegroups.com...
>>>>>I have a 96 avalon and it is leaking coolant. Almost all of the
>>>>> coolant reservoir is empty in 2 to 3 days. I found a crack on the
>>>>> radiator like someone took a knife and did this: -----. The crack is
>>>>> difficult to notice and i tried plastic epoxy but it did not work
>>>>> maybe because the crack is too small. But i do drive a lot so it makes
>>>>> sense that the coolant is leaking out a lot; even with a little crack.
>>>>> There is no other noticeable leaks around the radiator or the
>>>>> reservoir tank. I heard that you can use a tie strap and melt it on
>>>>> the crack on the radiator. The radiator and tie strap are made with
>>>>> the same material. Is that true? Is there any other way to repair this
>>>>> small crack because it seems like a waste to replace the radiator
>>>>
>>>> Since you are talking about plastic, I assume that the crack is in one
>>>> of the tanks. Repairing cracks in plastic is difficult and the repairs
>>>> tend to be iffy because whatever caused the cranks to appear may have
>>>> affected the rest of the plastic. A reputable radiator shop can
>>>> replace the tanks and clean out the core for less than the cost of a
>>>> new radiator.
>>>
>>>
>>> He might have what I have and have a hairline crack in the top plastic
>>> of the radiator.
>>>
>>> Mine leaks so little that I add a quart or less of AF for 10,000
>>> miles...
>>>
>>> I did epoxy a 'fitting' that I broke to the overflow bottle with
>>> high-temp epoxy.
>>>
>>>
>>>
>> Did the epoxy hold?
>
> I'd tell you but I'm supersticious... ;)
>

Got it. Did you use the putty type or liquid type?
--

Ray O
(correct punctuation to reply)


From: larry moe 'n curly on 4 Jan 2010 07:03

msrdude wrote:
>
> I have a 96 avalon and it is leaking coolant. Almost all of the
> coolant reservoir is empty in 2 to 3 days. I found a crack on the
> radiator like someone took a knife and did this: -----. The crack is
> difficult to notice and i tried plastic epoxy but it did not work
> maybe because the crack is too small. But i do drive a lot so it makes
> sense that the coolant is leaking out a lot; even with a little crack.
> There is no other noticeable leaks around the radiator or the
> reservoir tank.
> I heard that you can use a tie strap and melt it on the crack on the
> radiator. The radiator and tie strap are made with the same material.
> Is that true? Is there any other way to repair this small crack
> because it seems like a waste to replace the radiator

Plastic radiator tanks are made of fiberglass-reinforced nylon and are
best repaired by welding more of the same material into the crack.
The worst thing you can do is try super glue because it doesn't stick
well enough to fix the crack but does stick well enough to make it
hard to remove the glue so you can do a proper repair.

Apparently GM dealers sell radiator repair rod made of this material,
and radiator supply houses should have it as well. If you can't find
any but need to do an emergency repair, try cutting thin strips of
plastic from the ribs of the radiator tank, away from any connections
for the hoses, radiator cap, or drain valve. It's better to cut thin
slices from several ribs than one thick slice from a single rib. Don't
use a tie strap because they're made of a different type of nylon than
radiator tanks are and won't stick well at all. Epoxies don't seem to
work well either, even those made especially for plastic radiators.

Clean the area around the crack with alcohol. The best way to make
the weld is by melting a fairly deep groove into the crack with a
soldering iron (there are Teflon coated tips, made for wood burning
and plastic welding, but I use aluminum rod) and then going back and
filling that groove with nylon. Because plastic doesn't conduct heat
very well, you don't need a big, powerful iron, and I've gotten by
with even a 10W iron.

There are some YouTube videos about welding plastic, and this company
does nothing else:

http://www.wegenerwelding.com

Nylon is one of the easiest plastics to weld and easily gives strong
joints, unlike polyethylene. If you have to weld polyethylene, check
out canoe and kayak repair sites.
From: Hachiroku ハチロク on 4 Jan 2010 10:40
On Mon, 04 Jan 2010 00:17:39 -0600, Ray O wrote:

>
> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
> news:pan.2010.01.03.23.39.59.978175(a)e86.GTS...
>> On Sun, 03 Jan 2010 21:39:34 -0600, Ray O wrote:
>>
>>
>>> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
>>> news:pan.2010.01.03.22.34.04.865983(a)e86.GTS...
>>>> On Sun, 03 Jan 2010 21:06:07 -0600, Ray O wrote:
>>>>
>>>>
>>>>> "msrdude" <kimiga(a)gmail.com> wrote in message
>>>>> news:cc12db50-e9ce-4a9c-8b6d-47e366fe8b06(a)l30g2000yqb.googlegroups.com...
>>>>>>I have a 96 avalon and it is leaking coolant. Almost all of the
>>>>>> coolant reservoir is empty in 2 to 3 days. I found a crack on the
>>>>>> radiator like someone took a knife and did this: -----. The crack is
>>>>>> difficult to notice and i tried plastic epoxy but it did not work
>>>>>> maybe because the crack is too small. But i do drive a lot so it
>>>>>> makes sense that the coolant is leaking out a lot; even with a
>>>>>> little crack. There is no other noticeable leaks around the radiator
>>>>>> or the reservoir tank. I heard that you can use a tie strap and melt
>>>>>> it on the crack on the radiator. The radiator and tie strap are made
>>>>>> with the same material. Is that true? Is there any other way to
>>>>>> repair this small crack because it seems like a waste to replace the
>>>>>> radiator
>>>>>
>>>>> Since you are talking about plastic, I assume that the crack is in
>>>>> one of the tanks. Repairing cracks in plastic is difficult and the
>>>>> repairs tend to be iffy because whatever caused the cranks to appear
>>>>> may have affected the rest of the plastic. A reputable radiator shop
>>>>> can replace the tanks and clean out the core for less than the cost
>>>>> of a new radiator.
>>>>
>>>>
>>>> He might have what I have and have a hairline crack in the top plastic
>>>> of the radiator.
>>>>
>>>> Mine leaks so little that I add a quart or less of AF for 10,000
>>>> miles...
>>>>
>>>> I did epoxy a 'fitting' that I broke to the overflow bottle with
>>>> high-temp epoxy.
>>>>
>>>>
>>>>
>>> Did the epoxy hold?
>>
>> I'd tell you but I'm supersticious... ;)
>>
>>
> Got it. Did you use the putty type or liquid type?

Two-part liquid.



From: Ray O on 4 Jan 2010 15:56

"Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
news:pan.2010.01.04.15.40.12.988466(a)e86.GTS...
> On Mon, 04 Jan 2010 00:17:39 -0600, Ray O wrote:
>
>>
<snipped>

>>>> I did epoxy a 'fitting' that I broke to the overflow bottle with
>>>>> high-temp epoxy.
>>>>>
>>>>>
>>>>>
>>>> Did the epoxy hold?
>>>
>>> I'd tell you but I'm supersticious... ;)
>>>
>>>
>> Got it. Did you use the putty type or liquid type?
>
> Two-part liquid.
>

I have used the 2-part liquid lots of times but have never tried the putty
type and don't know anyone who has. I was wondering how the putty stuff
worked.
--

Ray O
(correct punctuation to reply)


From: Uncle_vito on 5 Jan 2010 21:25
Those cracks expand and contract with each engine run cycle. I do not see
any way how that repair would hold.

On the internet many of those OEM radiators can be had new for cheap.

That is what I would do.

Otherwise you will have an unreliable repair which may fail on you. Hardly
what I would want for my car.

Vito


"larry moe 'n curly" <larrymoencurly(a)my-deja.com> wrote in message
news:095311fe-0d44-4a59-844b-2e60d20f4fec(a)c3g2000yqd.googlegroups.com...
>
> msrdude wrote:
>>
>> I have a 96 avalon and it is leaking coolant. Almost all of the
>> coolant reservoir is empty in 2 to 3 days. I found a crack on the
>> radiator like someone took a knife and did this: -----. The crack is
>> difficult to notice and i tried plastic epoxy but it did not work
>> maybe because the crack is too small. But i do drive a lot so it makes
>> sense that the coolant is leaking out a lot; even with a little crack.
>> There is no other noticeable leaks around the radiator or the
>> reservoir tank.
>> I heard that you can use a tie strap and melt it on the crack on the
>> radiator. The radiator and tie strap are made with the same material.
>> Is that true? Is there any other way to repair this small crack
>> because it seems like a waste to replace the radiator
>
> Plastic radiator tanks are made of fiberglass-reinforced nylon and are
> best repaired by welding more of the same material into the crack.
> The worst thing you can do is try super glue because it doesn't stick
> well enough to fix the crack but does stick well enough to make it
> hard to remove the glue so you can do a proper repair.
>
> Apparently GM dealers sell radiator repair rod made of this material,
> and radiator supply houses should have it as well. If you can't find
> any but need to do an emergency repair, try cutting thin strips of
> plastic from the ribs of the radiator tank, away from any connections
> for the hoses, radiator cap, or drain valve. It's better to cut thin
> slices from several ribs than one thick slice from a single rib. Don't
> use a tie strap because they're made of a different type of nylon than
> radiator tanks are and won't stick well at all. Epoxies don't seem to
> work well either, even those made especially for plastic radiators.
>
> Clean the area around the crack with alcohol. The best way to make
> the weld is by melting a fairly deep groove into the crack with a
> soldering iron (there are Teflon coated tips, made for wood burning
> and plastic welding, but I use aluminum rod) and then going back and
> filling that groove with nylon. Because plastic doesn't conduct heat
> very well, you don't need a big, powerful iron, and I've gotten by
> with even a 10W iron.
>
> There are some YouTube videos about welding plastic, and this company
> does nothing else:
>
> http://www.wegenerwelding.com
>
> Nylon is one of the easiest plastics to weld and easily gives strong
> joints, unlike polyethylene. If you have to weld polyethylene, check
> out canoe and kayak repair sites.
>


First  |  Prev  |  Next  |  Last
Pages: 1 2 3
Prev: The Most Powerful Natural Penis Enlargement Technique
Next: What I learnt from charging my Prius