Club 80-90 Forums

Hello again!

I have just got round to looking at topping up the coolant on my 1.6jx engine and read up on what coolant to what level etc.

I have noticed I don't seem to have an expansion tank which I think should be behind the numberplate flap, I also do not have a hose connected to the daleck looking cap and have realised by topping up coolant to brim this will probably drench my battery when it heats up.

I have attached some pictures, can anyone tell me why the expansion tank may have been removed and where the missing pipe from the cap should run to? Do I need to fit a replacement?

Cheers

I think you would be wise to refit the number plate flap tank ,the only pipe to it is a small bore rubber pipe from that darlek cap .
Your auxiliary belt arrangement (water pump and alternator)looks wrong to me ,though I can’t be sure.Maybe somebody else will have an opinion on that.

Thanks!
Is expansion tank just for the run off from the main tank when it expands from heat? Any idea why it could of been removed in the first place?

I have been getting loads of squeal from the alternator belt and looking today I think I found the wrong size belt was fitted and so was still too slack (621mm instead of 600mm?) even when at the limit of tightening. Or did you mean set up wrong?

Cheers

Why was it removed? Incompetence! Mine was MIA too, took me a while to work it out.

As for belts, I’ve a JX too, I’ll post a photo when I’m next at the van (if I remember…) but I have single pulley on the water pump I think (?) and the single belt goes round both the water pump and alternator. I’ll look at previous orders and see what length I’ve bought in the past.
The set up you have seems to show two belts contacting the water pump, on different radii, which would surely lead to screech.

Sorry, no luck on prev orders on BW, not sure what that’s about. I’ve a belt somewhere. I’ll update in due course…

?
https://www.brickwerks.co.uk/t3-parts/e ... -6-td.html

My van  has the single groove water pump pulley arrangement but I found this photo of the double groove water pump pulley arrangement.
I think only one groove of the crankshaft pulley has a belt in it.

Also at bottom of the photo  the little hose going to the coolant top up tank can be seen.
 

Thanks for all the replies. Looks like I will be splashing out on a new tank and hose then!
I assumed the the top longer belt should be 10x600 from what I found on brickwerks


I think I need to find out what alternator I have to be 100% sure but the belt I have now seems a tiny bit long as still has give even tightened to where the nut is at the top.

I didn't even consider that some vans had only one belt! Guess over the years stuff gets added and removed to the point all will be slightly different. Makes it interesting I suppose

Just measure what belt length you need don't just guess! That way it doesn't matter what alternator/pulley you have fitted.

For the hard of thinking:   https://durabelt.com/beltlengthcalculator.php

Oldiebut goodie wrote: ↑27 Jun 2021, 09:15 Just measure what belt length you need don't just guess! That way it doesn't matter what alternator/pulley you have fitted.

For the hard of thinking:   https://durabelt.com/beltlengthcalculator.php

Cheers, so if I suspect the belt fitted is wrong and I use method 2 would it be best to have the alternator at the mid point of tension bracket to measure using string?

Anyone know off the top of their heads the diameter and length of the coolant pipe that goes from cap to expansion tank? Found loads of ptf tape on the coolant tank that is there and the threads are stripped so having to buy a new one of those. Topping up this coolant has turned into a mighty expensive job

Is it correct or acceptable for that belt to be on all 3 pulleys when there is that other belt also driving the water pump?

I don’t think a 625x10 belt is anywhere long enough to go around all 3 pulleys.

The hose to top up tank .1 metre will be long enough ,just make sure it is secured so it can’t rub on the pulleys/ belts.

I've been out to look again this morning and it does seem strange. I have measured the longer belt and it seems to be 89cm. I just assumed the numbers on the belt were it's length but obviously not!

Will post some pictures in daylight of the belts and the numbers on the belt to see if anyone has any ideas why it's set up like this.

And I'm guessing my expansion tank would fit into these holes if I had one?