chemweld - would you use it?

[mtp_69_i]

What are peoples experience with this stuff? Am I likely to stuff my motor up any worse by using it? At the moment the car runs fine (wouldn't even know there's a problem) just loses coolant progressively. The HG currently leaks coolant out between the head and the block on to the side on the engine (3sfe) facing the front of the car. There is no coolant in the oil or visa versa and there is little-to-no involvement of the combustion chamber(s).

Any sensible input would be appreciated!

[oldcorollas]

it works.... and seals things up... and i would not hesitate to use it to get me home..
some have used it for long periods of time (after follwing directions, and then flushing afterward),
but for a leaky HG... really the only solution is to fix it

as for the long term effects, and how much of the internal cooling passags get coated in crap? i am not sure..

[tooch]

Yeah it really is meant to be a temporary solution at best, but if it works, why not

My mate has used it plenty of times in his KE70 with a cracked head, he does regular chemiweld flushes and changes on it

Still goes, and hasn't completely blocked up yet!

[M.J.H]

What are peoples experience with this stuff? Am I likely to stuff my motor up any worse by using it? At the moment the car runs fine (wouldn't even know there's a problem) just loses coolant progressively. The HG currently leaks coolant out between the head and the block on to the side on the engine (3sfe) facing the front of the car. There is no coolant in the oil or visa versa and there is little-to-no involvement of the combustion chamber(s).

Any sensible input would be appreciated!

i wouldn't use chemiweld but I would use Sealup instead.
have used that befire and worked a treat, had the same problem as you do but on a Falcon.
First bottle lasted for 2 months then another two bottles of the stuff went for another 2 months till one very hot day it finally let go from overheating. Had plenty of water just the stuff worked so well at sealing up holes it blocked half the rad as well. Not good on a 40+ deg day with the aircon going flat out.
This was on a cab and was doing lots of klms so for normal use should last way longer.



But on the plus side it only took me a day to change an EL motor over.

[bmak]

I used it on one of my race 4k blocks for at least 6 months. No problems from what i saw when the motor was pulled down.

[mtp_69_i]

I used it on one of my race 4k blocks for at least 6 months. No problems from what i saw when the motor was pulled down.

sh!!t

why hasn't anyone recommended this stuff sooner! sounds tough! I reckon I may give it a go. keep the responses coming all input has been great so far, thanks very much.

[oldcorollas]

it works very well.. with the proviso that it might reduce cooling efficiency or block radiator in long run..

if you follow the directions it might be ok...

however, i would only use it for radiators.. not for leaky head gaskets...

[skaney]

I used it on my car for maybe 3 months as I needed it to get to work everyday while my new head was rebuilt. The head had 2 cracks in it and it sealed it fine.. maybe a little bit of water loss every week or so. I wouldnt recommend it as a permanant solution unless the car is a boonger but it does work well as a temp solution.

[ajh]

Although I'm not a fan of any "mechanic in a bottle products" I have used Chemweld on a 6 cylinder alloy head XD some years ago. Head gasket was leaking, causing exhaust gas to enter the radiator, and coolant to enter the combustion chamber - number 6.

The car resembled a steam engine when it was running, anyway I added Chemweld as a temporary fix and it worked. 4 months later I repaired the problem correctly and there was no apparent damage.

Also recommended the stuff to a friend with an old Sigma 2.6lt. Had much the same results too.

Give it a try...

Cheers, Andrew.

[slide86]

if you do it right it can get you out of a situation, but much as everyone else has stated, its only temporary.

i have used it on two engines to get outta trouble and never had any worries with either

[ed]

my old mans 3sfe had a similar issue

chemweld solved it

[Vios-GT_07]

is good

the dodgy mechanic boss i had a long time ago used chemiweld as a fix on HG jobs which he didn't do properly.. and also as a cheap fix on customers who didn't want to spend big money on a HG job but wanted to drive the car as long as possible..

as for clogging up, well i've seen cars use it for 6 months or so and still running.. afaik not in the best condition but hey it starts and runs.. i personally wouldn't use it as a permanent solution, but i have seen people sell cars with BHG + chemiweld and it seems to go undetected by the buyer and RACV.. (after it's done the sealing, they flush watever else out and fill it back up with water and coolant)

[Grega]

sorry for the hijack but what color is the stuff when its in your cooling system?

[tooch]

is good

the dodgy mechanic boss i had a long time ago used chemiweld as a fix on HG jobs which he didn't do properly.. and also as a cheap fix on customers who didn't want to spend big money on a HG job but wanted to drive the car as long as possible..

as for clogging up, well i've seen cars use it for 6 months or so and still running.. afaik not in the best condition but hey it starts and runs.. i personally wouldn't use it as a permanent solution, but i have seen people sell cars with BHG + chemiweld and it seems to go undetected by the buyer and RACV.. (after it's done the sealing, they flush watever else out and fill it back up with water and coolant)

Mate I certainly hope you did something about this 'dodgy mechanic boss' who you've mentioned a few times now, it's assholes like that who make people so distrusting of mechanics these days

[M.J.H]

sorry for the hijack but what color is the stuff when its in your cooling system?

A milky white colour from memory.

Thats what I liked about "Sealup" as you can just add it to what is already there and it doesn't disscolour as much.