Holts Radweld - any good ?
Hi all
I recently posted a thread about a potential leak from the top of my radiator which is causing a bit of steam to come out of my scoop and my headlights but I can't get it into the garage till next Friday .
So I have just been advised to try using some holts Radweld and apparently it could solve the problem permanently !
Had anyone ever tried any of this stuff ? and if so did it or does it really work ?
I recently posted a thread about a potential leak from the top of my radiator which is causing a bit of steam to come out of my scoop and my headlights but I can't get it into the garage till next Friday .
So I have just been advised to try using some holts Radweld and apparently it could solve the problem permanently !
Had anyone ever tried any of this stuff ? and if so did it or does it really work ?
DO NOT PUT THAT STUFF IN YOUR ENGINE!!!
It clogs up and gunks up the whole system, and CANNOT be easily gotten rid of.
Stop being so tight and get a new Rad, or second hand one at last resort.
If in doubt don`t drive it.
Radweld is EVIL stuff, unless your stuck in Siberia and it`s life and death.
It clogs up and gunks up the whole system, and CANNOT be easily gotten rid of.
Stop being so tight and get a new Rad, or second hand one at last resort.
If in doubt don`t drive it.
Radweld is EVIL stuff, unless your stuck in Siberia and it`s life and death.
it was a suggestion from someone, thats the whole point of these threads to get other opinions.
im not being tight as i said my car is already booked in to a garage but cant be seen until Friday so it was only gonna be a temporary fix
im not being tight as i said my car is already booked in to a garage but cant be seen until Friday so it was only gonna be a temporary fix
Trending Topics
the symptoms i have is coolant around the top lip of the radiator and when i drive it and check under the bonnet its been blown all over my hoses and pipes etc from the force of the air coming in from through the front grille, and i have a liitle drip on the passenger side underneath the pan guard.
My temperature is normal and the oil is clean as a whistle as its just been serviced

ive been told its a common fault that the top radiator seal fails and causes a leak hence why i considered Radweld or K seal as a temp fix so i can still drive it, i hate to see it sitting there especially now ive broke up from work for a week
any other suggestions what else it could be that i could check ???
My temperature is normal and the oil is clean as a whistle as its just been serviced


ive been told its a common fault that the top radiator seal fails and causes a leak hence why i considered Radweld or K seal as a temp fix so i can still drive it, i hate to see it sitting there especially now ive broke up from work for a week

any other suggestions what else it could be that i could check ???
I`ve used gungum to fill a holed radiator, and will never use any type of in the water radiator repair.
Last edited by Jimbob; Dec 25, 2011 at 08:20 PM.
I had the same problem with mine slight leak from the top seal on the rad.
I went to a radiator restorer who couldn't fix it so I purchased a new 1 from him that arrived the next day £120. Fitted it that night took about an hour and about the same to remove it very easy DIY job
I went to a radiator restorer who couldn't fix it so I purchased a new 1 from him that arrived the next day £120. Fitted it that night took about an hour and about the same to remove it very easy DIY job
The heater matrix in my Berlingo van sprang a leak a few months back. It's dead easy to replace the matrix - all you have to do is remove the complete dashboard and it just unbolts...! As an alternative, my local garage sold me some of this stuff:
http://www.autokits.co.uk/forte-radi...leak-p-42.html
...which sorted it out in a couple of miles. It's still fine. I realise it's not supposed to be a permanent repair, but it saved me several hundred quid for labour alone, so I thought it worth the risk.
I have to agree with the sentiments being expressed here though. If you can manage to hang on and get a new rad fitted, it will clearly be better.
http://www.autokits.co.uk/forte-radi...leak-p-42.html
...which sorted it out in a couple of miles. It's still fine. I realise it's not supposed to be a permanent repair, but it saved me several hundred quid for labour alone, so I thought it worth the risk.
I have to agree with the sentiments being expressed here though. If you can manage to hang on and get a new rad fitted, it will clearly be better.
Move away from the Radweld!!
Depends where its coming from mate, Take it for a drive and build some heat/pressure up and see if you can see exactly where its coming from, I`ve used solder to fix a leak before now but it really depends on the leaks location.
Depends where its coming from mate, Take it for a drive and build some heat/pressure up and see if you can see exactly where its coming from, I`ve used solder to fix a leak before now but it really depends on the leaks location.
steps to replace rad
1. Engine cold (only to avoid burns) undo the tap at the bottom of the rad on the offside (drivers) side of the car, this will allow the rad to drain. Collect this in a bucket if you wish to re-use ( or make sure you have some replacement coolant ready)
2. Undo all hoses connecting to radiator
3. Undo 2 mounts at the top of the rad (they also locate the bonnet stay)
4. (I think) the rad just lifts out now?
5. Remove fans and carriers from you rad and transfer to new rad.
6. Install new rad into car (reverse the removal process)
7. Fill coolant system with coolant.
8. Run engine with cap off coolant system, squeeze hoses to encourange the air to get to the header tank, top up as neccesary.
Done
S'netters feel free to correct anything with this ( im just trying to demonstrate the scale of the task) Easy to do really.
Hope this helps
1. Engine cold (only to avoid burns) undo the tap at the bottom of the rad on the offside (drivers) side of the car, this will allow the rad to drain. Collect this in a bucket if you wish to re-use ( or make sure you have some replacement coolant ready)
2. Undo all hoses connecting to radiator
3. Undo 2 mounts at the top of the rad (they also locate the bonnet stay)
4. (I think) the rad just lifts out now?
5. Remove fans and carriers from you rad and transfer to new rad.
6. Install new rad into car (reverse the removal process)
7. Fill coolant system with coolant.
8. Run engine with cap off coolant system, squeeze hoses to encourange the air to get to the header tank, top up as neccesary.
Done
S'netters feel free to correct anything with this ( im just trying to demonstrate the scale of the task) Easy to do really.
Hope this helps
Guys, Subaru coolant conditioner = Radweld and is added whenever they change the coolant IIRC...
http://www.subaruforester.org/vbulle...houghts-65712/
http://www.google.co.uk/search?q=sub...G4ap8QPZrbWxAQ
http://www.subaruforester.org/vbulle...houghts-65712/
http://www.google.co.uk/search?q=sub...G4ap8QPZrbWxAQ
Last edited by Gigsy; Dec 26, 2011 at 11:46 AM.
can't believe the timeing on this, my car lost coolent yesterday, on a detailed check this morning found two small jets frontside of rad. Will certainly source new rad and fit myself refering to this thread. thanks chaps
Trev
Trev
is it that radweld is bad only for subarus ? as i read dont use it or there will be problems, i cant help but think these comments overdoing it a tad, i have used radweld in my bmw and it ran for next 5 years no problem.if radweld knackered engines up like that surely there bottles would not be seen in halfords, shell garages or world wide market for that matter i say this as i have used it and so far no problems. other option of course is a large repair bill. poss a new engine or strip down for new head gasket.
Have a close look and you will more than likely find a hairline crack that's opening up when water temp & pressure increases.
And in response to your initial reply which you edited , yes £60 max , brand new , because a mate had the same problem just two week ago , iirc he payed less than £60 including postage
Last edited by toneh; Mar 9, 2013 at 09:15 PM.




