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Post by spunkymonkey on May 1, 2014 12:41:27 GMT
The reason for HGF on these is always the same - they're not the twin-pot More seriously, the lack of any overheat warning apart from for steam coming out of the bonnet (and a dash light that might come on, if you're lucky, after it boils), combined with an alloy head that warps easier than a squaddie's sense of humour, is usually reason enough.
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Post by Sigmund Fraud on May 1, 2014 14:54:59 GMT
There's no mayo, gentlemen, which leads me to the conclusion that the gasket has blown between liner and water jacket.
Pete was telling me that he had had the gasket replaced when he owned Ena, which may or may not be related to the failure. All will be revealed when the head comes off !
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Post by macplaxton on May 1, 2014 15:44:38 GMT
There would be mayo if you ran it long enough (Must look at my notes and see how long I was chancing my arm, at least 2k worth)
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Post by ozzie on May 1, 2014 22:32:43 GMT
Pardon me for asking but tec speaking should we not find out the reason for the failure be fore ye replace the gasket. To my mind if the head has not been desturbed previously why has it gone now. The design of the liners is such that they compress the bottoms into / on to a seal and the head gasket seals the top. The head clamps it all together. Water leaking into oil suggests one of these seals has broken either at the head end or the bottom. If a cylinder has moved then you might be better off going all the way on the first date! Ooo her missis and replacing the bottom seals also I know it's a bigger job but for the case of longlife and it not happening again. I believe the original tool for holding the cylinders in place was a piece of angle iron bolted in place by the head bolts. Does the workshop manual give a specification for cylinder height in relation to the block flange. At least if you do remove the liners you can check out the rings and give the bores a quick glaze bust at the same time that way you might feel the difference when it's back together for your toils in relation to more POWER. I job well done is worth it twice in the bush, to many cooks spoil the brothel and all that.
It can't take long to remove the liners clean up the seal lands a pop it all back together after all you will lap the valves in whilst the head is off won't you! Oops did I suggest that out loud. Now you see why garages don't like home mechanics cos labour is expensive and to do a job properly is easy at home as labour is free and the garage just can't do the job properly and compete. I think I have just let the cat out of the bag regarding my ethos to cars and restorations. If a jobs worth doing then eat the broth that the cooks got from under the bush!
Antheretiz.
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Post by ozzie on May 1, 2014 22:41:01 GMT
I think a glitch has occurred Soz but whilst on the subject if compression is leaking into water jackets then why ? What's caused it all of the afore mentioned or none if it's recently been done then suspect liner seals at bottom or at least check head for warpage. I would take my time and check it all out. Rad being the most overlooked item. But I think bottom seals are suspect if the liners move then leaky leeks is the only out come for sure. As the liners move from expansion and contraction.
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Post by Kenr on May 1, 2014 22:47:37 GMT
Sorry to hear about Ena mate. Damn. I hope you are able to sort it with minimal fuss, bother and expense.
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Post by Sigmund Fraud on May 2, 2014 8:15:47 GMT
Rich, I have no doubt that coolant would eventually find its way into the oil... Thankfully, I can afford to not use Ena until everything is sorted, so she won't need to reach that stage !
Ozzie, absolutely agreed that something is going on. I just need to find what ! I won't be touching the bottom end, but I'll check the liner heights and get the head measured before putting the engine back together.
Ken, I expect a fair amount of fuss and bother but not much expense. Time will tell...
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Post by ozzie on May 2, 2014 19:34:32 GMT
Don't be scared of doing bottom seals it's dead easy and not hard but I suppose to do it as it should be it's better done on the bench. Good luck with it ire just shout if you want me to just come and take her away......m He said hopefully!!!!
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Post by Sigmund Fraud on May 3, 2014 12:20:28 GMT
Agreed that bottom seals aren't a major job by itself... But to get to them, you need to take the bottom end apart, which I will avoid if I can help it.
I won't be letting Ena go just yet... I've strangely developed a soft spot for the awful old thing, even Mrs.Fraud seems to like her !
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Post by 33grinder on May 3, 2014 14:14:45 GMT
That's half the battle mate Mrs G likes my DAFs and will be driven in them (she has driven my 33 twice but says she won't again - she crunched gears and it knocked confidence in her skills). My Rover is a different matter, she used to complain that it made her feel sick. Personally I see nothing wrong in having oily fumes entering the cabin via the air vents...women eh?
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