Worc cdi - new diaphragm

[nickso]

if i was you id replace the entire valve tho.

thats the very last thing i would do. if its just the end bush thats leaking buy a complete diverter and split it. the less you take out of that nightmare the better.

Have you managed to get the top plate off the diverter Nickso without taking the whole thing out??

i never take the whole thing out. well thats a lie, i did the first time and regretted it.

the other 50+times i just split the end off the diaphragm housing.

 

[superdupergasman]

I still have not managed it, get annoyed and rip the whole thing out, spend less time mucking about, then get it back in double quick!!

I just make sure I always have the o ring pack in my van stock and plenty silicone grease!!!

 

[Agile]

With my trainee much of the time was spend taking the stupid plastic filling bits off first as some of them were seriously seized and we did not have a spare.

It was a bit of a special as this fellow is not very well off and apparently having some problems with his wife. I ( unusually ) feel sorry for him as he is very nice guy and capable of learning but has never had the right opportunity to get any proper training for a better skilled job.

I have previously managed to get just the top plate off the diverter valve to renew just the diaphragm ( and potentially the pin gland ).

Now for anything else than very special friends I just suggest a BG fixed price repair!

Tony

 

[thomas28]

Thanks guys. Read the posts and thought what the hell i'll give it a go.

Got hold of a spare prv. Isolated the mains at the stopcock and drained the boiler at the prv. Thanks for the plastic bag over the pcb tip Nickso. When i took the heat ex off water began to pour out. Didn't think it would stop and that the whole system was draining out - but it did...

The plastic filling loop assembly came out ok.

I managed to get all but 2 of the d/v screws out. After much head scratching got the back 2 out using a posi bit held with a small pair of grips. Couldn't get the tiny o ring out so took it to a BG man who was on a job over the road at the time. Thankfully he used a special tool from his kit (no charge) and advice on new o rings for the heat ex.

Put it all back together and re-filled it. PRV began leaking and small leak from the heat ex. Drain again. New prv and rechecked seals/nipped up.

Sorted.......

Thanks for the advice but i'm NEVER going to do it again.

Tom

 

[nickso]

told you.

if you try it again, buy a right angled screwdriver. i used to use the posi bit and a small spanner method myself until i got one of those.

also you should have drained most of the excess water out of the lower left hand dhw connection. then you wouldnt have got so much over the pcb.

congrats anyway.

 

[Agile]

if you try it again, buy a right angled screwdriver. i used to use the posi bit and a small spanner method myself until i got one of those.

congrats anyway.

I often find a left angled screwdriver is useful.

We gave him all the correct advice and with a little help from BG he managed it !

He also learnt the hard way never to do it again.

Tony

 

[thomas28]

told you.

if you try it again, buy a right angled screwdriver. i used to use the posi bit and a small spanner method myself until i got one of those.

also you should have drained most of the excess water out of the lower left hand dhw connection. then you wouldnt have got so much over the pcb.

congrats anyway.

Never again... You guys give excellent free advice but repairing boilers is a job for the experts.

Take weeks for the skin on my knuckles to recover

 

[ollski]

Jus like that!

Untitled

• ollski
• 7 Jan 2009
• 2

Untitled

• ollski
• 7 Jan 2009
• 3

 

[petit_pablo]

Got the diaphragm change down to an hour on my last patch. The old engineers and the newly qualifieds have nightmares about these, there was 3 of us that used to get most of the cdi jobs booked back to us.

Well done for tackling it yourself! Your a brave man!

ollski - that right angled pozi is a god send for these jobs

 

[nickso]

The old engineers and the newly qualifieds have nightmares about these, there was 3 of us that used to get most of the cdi jobs booked back to us.

they would have got told to **** right off on my patch. lazy gits.

 

[nickso]

if you try it again, buy a right angled screwdriver. i used to use the posi bit and a small spanner method myself until i got one of those.

congrats anyway.

I often find a left angled screwdriver is useful.

presumably its in the same toolbox as your tartan paint and skyhooks?

 

[gavinda]

The old engineers and the newly qualifieds have nightmares about these, there was 3 of us that used to get most of the cdi jobs booked back to us.

they would have got told to **** right off on my patch. lazy gits.

only one way to learn