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Old 18th December 2021, 16:00   #61
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That's interesting, where exactly do they pass each other?
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Old 18th December 2021, 16:15   #62
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That's interesting, where exactly do they pass each other?


In this photo of a LH bank inlet manifold gasket the circular port at the bottom right carries coolant. You can also see the three intake ports which pass mixed petrol and air. The bright blue line is the elastomer seal with a defect above no. 5 port.

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Old 18th December 2021, 17:57   #63
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Silly question and every day's a learning day but which is left and which is right - I'm thinking about it front and back!

Presuming left front right back which means look at the V from the nearside?

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Old 18th December 2021, 18:56   #64
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... which is left and which is right ... Presuming left front right back which means look at the V from the nearside?
You're absolutely right Billy!

It goes back to before the age of transverse engines. The front of the engine is always where the crankshaft pulley is.

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Old 19th December 2021, 17:20   #65
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I've tightened all those bolts up and used new gaskets. If that were leaking wouldn't I see some coolant in the V? It's bone dry in there...
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Old 19th December 2021, 18:29   #66
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You're absolutely right Billy!

It goes back to before the age of transverse engines. The front of the engine is always where the crankshaft pulley is.

Simon

And where No 1 cylinder is, except for some old Jag engines. 😉
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Old 19th December 2021, 18:56   #67
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If that were leaking wouldn't I see some coolant in the V?
Not necessarily Billy. If you look again at the photo, imagine a possible break in the circular seal surrounding the coolant port which creates a passage between coolant and no. 5 cylinder intake. In that particular case there would be no route for coolant to enter the 'V'. However I would also expect coolant to be sucked into no. 5 cylinder.

I'm not saying that this has definitely happened on your car, I'm simply reading the evidence you've presented and trying to suggest possible causes. A smell of unburnt petrol in the expansion tank is unusual to say the least!

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Old 19th December 2021, 20:09   #68
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Well done, keyhole method is easily doable, and preferable to removing the inlets.

I would flush the system and refill with blue, but thats just me and the debate on coolant is worse than 'what are the best tyres to use'

When you drain the coolant, remove the drain plug on the block, it makes thermostat replacement much nicer when there is no coolant in the way.
Hi Trikey, Tyres are easy “ Black ones with tread”.
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Old 19th December 2021, 20:16   #69
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Silly question and every day's a learning day but which is left and which is right - I'm thinking about it front and back!

Presuming left front right back which means look at the V from the nearside?
There is only one problem with assuming it is the cylinder nearest the crank pulley.
What if it is like my old Javlin and has a flat 4 in it it for that matter any flat engine.
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Old 19th December 2021, 22:03   #70
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There is only one problem with assuming it is the cylinder nearest the crank pulley.
What if it is like my old Javelin and has a flat 4 in it it for that matter any flat engine.
Even if it's a flat four there will always be one bore and piston nearest to the crank pulley.
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