Wobbo
Active Member
Ah ok thanks. I'll do that.. I just fill at that point through the hose as it's the highest point but just assumed that air would be forced out of the pressure cap.
...... could it be that simple!!
Overheating
- Thread starter Wobbo
- Start date
...... could it be that simple!!
BruceK
Well-Known Member
I dont crack anything. I fill the expansion tank and then squeeze the hose going to the heat exchanger from the thermostat in a pumping action till I cant hear it bubbling any more. Run the engine for a couple minutes and top up.
Wobbo
Active Member
Ok..I'd probably just get coolant leaking if I cracked that top hose. I'll give the lower hose a squeeze.
Decided I'll pull the oil cooler off for a look inside as I'm halfway in anyway. Give me even more access to get around the engine for a good clean and check.
Thanks for all suggestions ?
About Time
Well-Known Member
In the Volvo manual it says (VERY unusual for engines though) That the coolant level must be measured when the engine is WARM! (not cold). For my KAD 300 it means that the correct level of coolant when cold is right at the minimum mark. After I got this message I have never topped coolant.
Wobbo
Active Member
Guess that fits with what's been said, that you don't fill the header tank to the full mark.
Thanks?
Restoration man
Well-Known Member
Also on slightly different subject I let the engine oil find its own level I was always topping the oil up then I read something about over filling it , I was obsessed with keeping it on full mark on the dipstick, And was putting oil in every trip now I leave it and goes down to nearly the low mark but once it gets there it stays there all season with absolutely no topping up , my engine is kad42 but there virtually the same engine as yours but with 2 more cylinders
Wobbo
Active Member
Luckily the oils ok. Did have a leaky crankshaft oil seal which has now been done. Fairly simple job once we made up a puller. Shall be down the boat tomorrow having a look at the oil cooler....which is probably going to mean compressor off for access. Should be a laugh!!
Wobbo
Active Member
Got the engine in bits! Blown out for diving this weekend anyway so why not!!
We've had oily mess build up in the bilge no matter what we do and we do like a spangly clean bilge, it's become an obsession! After the strip down I found the pipe from the engine block to the breather up top was just hanging down. There's a hose venting up top as well to the filter but a certain amount is going back down the pipe and running into our bilge. The place where it should connect was bunged up with sikaflex and a 5p!!!!
Why would they do that!!!!???
Got the oil cooler off after a fight and some holes were bunged up with stones and a fair amount of mud. Good to get it clean but doubt it's the cause of our instant overheating. All hoses are clear, no blockage anywhere in raw or fresh system. And a clean bilge yayy.
Finish putting it back together today and see what occurs...
We've had oily mess build up in the bilge no matter what we do and we do like a spangly clean bilge, it's become an obsession! After the strip down I found the pipe from the engine block to the breather up top was just hanging down. There's a hose venting up top as well to the filter but a certain amount is going back down the pipe and running into our bilge. The place where it should connect was bunged up with sikaflex and a 5p!!!!
Why would they do that!!!!???
Got the oil cooler off after a fight and some holes were bunged up with stones and a fair amount of mud. Good to get it clean but doubt it's the cause of our instant overheating. All hoses are clear, no blockage anywhere in raw or fresh system. And a clean bilge yayy.
Finish putting it back together today and see what occurs...
Wobbo
Active Member
Fukin boats...well after tearing the thing apart and putting it back together safe in the knowledge there are no blockages,it ran and then it overheated. Bassssstard.
We are 100% sure raw is ok so drank some beer and took a long hard look at the fresh side. And...the pumps broken.
There's no coolant circulating. Got the thing of after much ball ache and the front spins lovely but the impeller is not turning so something has snapped. Which accounts for a sudden overheating.
How's that come apart then vp358839702
We are 100% sure raw is ok so drank some beer and took a long hard look at the fresh side. And...the pumps broken.
There's no coolant circulating. Got the thing of after much ball ache and the front spins lovely but the impeller is not turning so something has snapped. Which accounts for a sudden overheating.
How's that come apart then vp358839702
[2068]
...
U need a new pump, that’s not repairabubble.
>>Edit - impeller and shaft should still be available.
>>Edit - impeller and shaft should still be available.
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Wobbo
Active Member
Parts are available for it so it must come apart!? and this one's been going since '96 so it can't be that chocolate. If I gotta get a new one I'll get one but still want to strip this one down
Wobbo
Active Member
Ok...stand corrected. Overhaul kit out of production. Cock.
BruceK
Well-Known Member
[2068]
...
That’s a seawater pump?
Freshwater pump is a different kettle of fish.
Looking at the VP site, the impeller and shaft should be available as a spare part, 3583087, but other bits might also be needed.
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Wobbo
Active Member
I think that part number will get you the impeller but not the shaft...shaft being the broken bit. In the obsolete overhaul kit you got the shaft as well.
I could go to an engineer but it's time it's money and it's ballache if it's not right. I'm going for a new one.
Ah well, it did well, a new one will hopefully see the old tub out..and me!
BruceK
Well-Known Member
yep, I misread when impeller was mentioned. I thought it was raw water that had gone.
david_bagshaw
Well-Known Member
send it to SP Pumps at Preston. no connection other than as satisfied customer
Wobbo
Active Member
Hi, I will keep them in mind for future reference. Hopefully a useful contact for someone else which is what this is all about.
I have a refurbished pump from Volcspec. You can buy a new one or get a refurbished one and send your broken pump back then get some money back ..£70 I believe..
Anyone taking off their pump just be aware it has to go back in one piece and not look like it's been taken off with a crowbar as the casing is what will be used for someone else's refurbished pump.
I have a refurbished pump from Volcspec. You can buy a new one or get a refurbished one and send your broken pump back then get some money back ..£70 I believe..
Anyone taking off their pump just be aware it has to go back in one piece and not look like it's been taken off with a crowbar as the casing is what will be used for someone else's refurbished pump.