Glow worm heat exchanger problem
- Thread starter sylvian
- Start date
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Did he do that on purpose?
Cross heads do get chewed if they are left undisturbed for long periods of time. It is also important to maintain driver tip in good condition as worn tip will not grip and reluctant screw ends up chewed.
Some people (both householders and engineers) maintain it is better left alone if it aint broke. Others believe carrying out a service as detailed in MIs is likely to cause problems during the act of dismantling.
My experince is that regular (proper) service leads to easier dismantling as screws do not get a chance to seize up.
Use a chisel and hammer. Apply chisel to screw head and tap gently. It will turn.
Cross heads do get chewed if they are left undisturbed for long periods of time. It is also important to maintain driver tip in good condition as worn tip will not grip and reluctant screw ends up chewed.
Some people (both householders and engineers) maintain it is better left alone if it aint broke. Others believe carrying out a service as detailed in MIs is likely to cause problems during the act of dismantling.
My experince is that regular (proper) service leads to easier dismantling as screws do not get a chance to seize up.
Use a chisel and hammer. Apply chisel to screw head and tap gently. It will turn.
N
noonespecial
Only do this though if you believe the HSE would consider you a competent person - if not what you will be doing is illegal!
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i am guessing you mean d.h.w plate to plate h/exch. they are normally torx screws on glow-worms and easy to chew up as i said before drilling is the only way depending on the boiler you may not have enough room at the back and may need to pull the boiler forwards model would be a help
ACOperson said:Poxy torx screws
Chewed a few of those up on Ideal boilers
Ah but were you using a torx driver.
I dont remember Torx ( TM ) screws on Ideals?
The Sonya Duval boilers ( dreadful ) have quite nice Torx (TM) screws with a flat blade combination as well.
Surely ALL true boiler engineers have a set of Torx (TM ) drivers as part of their kit?
Tony Glazier
The Sonya Duval boilers ( dreadful ) have quite nice Torx (TM) screws with a flat blade combination as well.
Surely ALL true boiler engineers have a set of Torx (TM ) drivers as part of their kit?
Tony Glazier
Yes, there are Torx screws on the plastic hydraulic block on the LH side of some newer Ideal combi's, they hold the plate heat exchanger on.
I DO have a decent set of Torx screwdrivers, however the problem arises when you work for a company with around 30 heating engineers, where someone goes to diagnose a problem, another goes to fit parts and fails and then they send me. When one of the other guys tries to use a philips screwdriver on a Torx screw, he slightly knackers it. Then I come along with my Torx screwdriver and succeed in doing nothing more to the already half ruined screw than ruining it further...
AAAAAAAAAahhhh!!
I DO have a decent set of Torx screwdrivers, however the problem arises when you work for a company with around 30 heating engineers, where someone goes to diagnose a problem, another goes to fit parts and fails and then they send me. When one of the other guys tries to use a philips screwdriver on a Torx screw, he slightly knackers it. Then I come along with my Torx screwdriver and succeed in doing nothing more to the already half ruined screw than ruining it further...
AAAAAAAAAahhhh!!DIYnot Local
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