What can go wrong next?

Nostrodamus

Nostrodamus

Well-Known Member
Joined
7 Mar 2011
Messages
3,659
www.cygnus3.com
Right. This season has been written of with the "what can go wrong has gone wrong"
First the raw water pump failed, then the rear lip seal on the cam started leaking oil.
Next the coolant started to dump itself into the engine bilge. I am pretty sure this is the head gasket but hey, if it could be worse it most probably will be.
The solar panels have failed in that they only work for an hour morning and night.
Now I just changed the exhaust elbow. I did enquire of mr Volvo but he was out stealing ice creams fom babies and ripping the wings off butterflies. He did leave me a message though asking for £550!!!!
I tried a Perkins dealer and he was far more helpful selling me the same part for £125.
Well after a day removing the old one and putting the new one back on with a new gasket it turns out the exhaust gas is spewing into the boat.
It looks like mr Volvo put an aluminium heat exchanger next to a cast iron exhaust elbow. Good thinking there you brainless numb nut.
Anyway.. To my question.. Can I seal the exhaust elbow with some kind of gasket sealant?
If no can someone please buy me a new engine or show me how to tie a hangmans noose!!!!!
 
If you're really asking questions like this, won't you have to change your user name - or was there and irony smiley that I missed?

Hope it all works out though!
 
Corribee Boy said:
If you're really asking questions like this, won't you have to change your user name - or was there and irony smiley that I missed?

Hope it all works out though!
Click to expand...

I always knew there would be pain along the way but just got my dates muddled up. All this shouldn,t have happened for another 43 days or is that when the world ends? It would just be my luck to sort my problems out just in time for the world to end.
 
Oh, I'm glad you're not losing your touch, on top of your other woes.

PS - I'm thinking of sailing this weekend - do I need to worry about showers of frogs in Lyme Bay?
 
"What can go wrong next?"

My advice when near boats is do not ask that question, ponder the solution but never the question....

Its scary how just when you think its going to get better... it comes form know where and there it is the new problem....
 
Corribee Boy said:
Oh, I'm glad you're not losing your touch, on top of your other woes.

PS - I'm thinking of sailing this weekend - do I need to worry about showers of frogs in Lyme Bay?
Click to expand...

Always worry if you see a shower of frogs... They never have fenders, lines ready and they will anchor within 4.7 cm of you in any bay
 
If I understand your problem properly it seems that the face of the heat exchanger that takes the exhaust elbow has corroded. This had happened to me on another engine where the flange of the stainless exhaust elbow was slightly bowed had allowed exhaust gases to leak and the aluminium to be scoured.

Take off the heat exchanger and have somebody rebuild the face with aluminium welding. Then have the face machined flat. (If you can wield a sharp file well it can be done by hand, testing continually for a good face-to-face fit; otherwise the problem will recur). It should not be too expensive.

Short-term solution would be a thick and soft-ish gasket (Permanite or similar) but this is only a temporary solution before you have the flange re-built and refaced. You could try something like Belzona but again, this will only be temporary.
 
PuffTheMagicDragon said:
If I understand your problem properly it seems that the face of the heat exchanger that takes the exhaust elbow has corroded. This had happened to me on another engine where the flange of the stainless exhaust elbow was slightly bowed had allowed exhaust gases to leak and the aluminium to be scoured.

Take off the heat exchanger and have somebody rebuild the face with aluminium welding. Then have the face machined flat. (If you can wield a sharp file well it can be done by hand, testing continually for a good face-to-face fit; otherwise the problem will recur). It should not be too expensive.

Short-term solution would be a thick and soft-ish gasket (Permanite or similar) but this is only a temporary solution before you have the flange re-built and refaced. You could try something like Belzona but again, this will only be temporary.
Click to expand...

Thank you puff.... I need the temporary solution at the moment as we cannot go into a mania until September as they are too expensive but I need to up anchor and move in the wrong weather
 
. Anyway.. To my question.. Can I seal the exhaust elbow with some kind of gasket sealant? If no can someone please buy me a new engine or show me how to tie a hangmans noose!!!!![/QUOTE said:
Ummmm NO .it won't seal properly, the mating faces need to be flush to seal, as has been said prior, machine it flat to remove pitting or get a stainless fabricator to make you one ... I have a tig set inboard and odd pipes and stuff .. Where you hiding now ?
Click to expand...
 
A get-you-home solution 'may' be something like either gunsons exhaust sealant or silicone bath sealant, depending on the temperature of the flange...

If you use Gunsons, give it several hours to go off before you run up the engine as the elbow is probably not really hot enough for it.

If it is too cool for the Gunsons and you have no silicone, Sikaflex is pretty darned difficult to shift.

(All this is bodging, but that where the fun lies)
 
Could you use something like chemical metal to fair the corroded surface as a short term bodge ? this is what it says on their website (
  • (Resistant to temperatures up to +160°C)

Plastic Padding Chemical Metal

8798923685918.jpg
Plastic Padding Chemical Metal - Two-part, polyester based general purpose product
Two-part, polyester based general purpose product. Allows fast and easy repairs on cars, in the house, hobby etc. Suitable for filling and trowelling flaws and cracks, for joining dissimilar materials and for sealing housings and casings.
Your benefit

  • Resistant to water, salt water, oil, fuel, and to most weak acids and chemicals
  • High strength product
  • Allows machining, including tapping threads after 20 minutes
  • Resistant to temperatures up to +160°C
Technical data

  • Product Base: Polyester
  • Application: Room temperature
  • Pot life: 5 min.
  • Pack sizes: Tube 55 ml Mini, Box 130 ml Junior, Tin 560 ml Giant, Blistercard 55 ml

Pete
 
You must log in or register to reply here.

Share this page

Top