Dean1977

Can I just replace the blue header tank assembly for a plastic one out of a car. Of so can anyone recommend one for an easy fit. So are we thinking that the cast alloy thing in picture 2 is a heat exchanger? As for the engine water pump not sure where that is pumped too. I'm next at the boat on Saturday. Can I just replace the blue header tank assembly for a plastic one out of a car. Of so can anyone recommend one for an easy fit.

i am almost certain that the gearbox cooler is after the heat exchanger could this be a problem? could i do away with the header tank assembly, and fit a standard clear modern type, also any recommendation on what type or make filter/strainer to fit?

i to thought that it was some sort of medieval inlet filter.

So are we thinking that the cast alloy thing in picture 2 is a heat exchanger? As for the engine water pump not sure where that is pumped too. I'm next at the boat on Saturday.

The raw water comes up out of the hull to a sea dock up to a tee from the tee straight to the raw water pump. The other end of the tee is blanked. To that cylinder thing in picture 2 then up to that manifold affair.

I have seen this online it does have a calorifier but has been disconnected for some reason you may see in the photos 2 pipes with white ends that I think went to it.

sea cock is wide open but i do think their is a blocked as i have taken the jabsco pipe off on the sea cock side and nothing came out, not sure how to check whilst its still in the water. but its just the fact that i dont understand the rest of the cooling system that's annoying.

hi Guys i totally agree its a heath Robinson affair, i thought it had some old type heat exchanger but i cant work out how it could possibly work like this. im now thinking i need a bowman heat exchanger, any ideas where i attach what photos ive got. any ideas where i could get a used heat exchanger from??

hi i have recently purchased a Creighton 26' centre cockpit. it has a BMC 1.5L engine, i never have an engine service done when i bought it stupid mistake but anyway. whilst moving it up the Lancaster canal to the marina i sourced it started over heating, me not being mechanically minded i opened up the engine bay and google this problem a lot of people were saying check the raw water pump which i found in eventually and had a look at the impeller which seemed fine no broken blades and rotated as it should i think. other people were saying air in the system ok not sure about that. but then i got to looking at the cooling system and it doesn't look like any of the pictures i've seen online can anybody is correct or am i missing something. any help or advice would be much appreciated.