Leaking too much LHM?

Willy · Post by **Willy** » Thu Jun 07, 2012 4:09 pm

Is this usual? It's always been a bit "damp" around the pressure regulator but when I looked under earlier I was like ZOMG GREEN EVERYWHERE! Despite this I have never had to add any more LHM to the tank - the disc's been just above the "max" reading and the dashboard light has never come on.

P1030773 by willswitchengage, on Flickr

P1030774 by willswitchengage, on Flickr

Post by **Tim Leech** » Thu Jun 07, 2012 4:29 pm

Hmmm is it dripping? if not I wouldnt worry too much, its an old car....

JayW · Post by **JayW** » Thu Jun 07, 2012 4:54 pm

Most commonly this is caused by the two unions on top of the FDV working loose. Access is tricky but worth checking if they need nipping up.

mds141 · Post by **mds141** » Thu Jun 07, 2012 5:04 pm

How old is the ACC sphere?

Post by **docchevron** » Fri Jun 08, 2012 1:49 am

thats pretty common, as said above, check the unions, but to be honest, my valver is much the same, and I just dont care enough to do anything about it! Even my tame MoT tester says "they ALL do that mate"..

KevR · Post by **KevR** » Fri Jun 08, 2012 9:53 am

Mine looks like that too - I've nipped up the unions as best I can and replaced the hose clips with new, bt it still weeps a bit. I give it a wipe over every now and then so I can see if there's any new and obvious leak, otherwise I don't let it trouble me.

MULLEY · Post by **MULLEY** » Sat Jun 09, 2012 5:41 pm

The black cyndircal plastic housing can also leak where it mates to the metal block that its attached to. There are 2 bolts that hold it on, be careful that you don't damage them if you try to remove them. Inside is a v-powerful spring & some other gubbins that i can't exactly remember, so if you do decide to undo this make sure you don't let it poing out as you'll lose all the bits you need to put it back together. The mating surface will need a good clean along with the internals of the housing, there was a fair amount of crap in the bottom, its another deadstop. Also worth having someone to help you re-allign it up whilst pushing against the spring so that someone else can tighten up those 2 bolts. To re-seal it, i think some of that waterproof blue paste stuff was used, i forget the name of it, & mine hasn't leaked since.

Post by **docchevron** » Sun Jun 10, 2012 2:05 am

blue hylomar?

MULLEY · Post by **MULLEY** » Wed Jun 13, 2012 1:04 pm

Could well be Doc, either way its magic blue stuff that stops leaks

Wooscary · Post by **Wooscary** » Wed Jun 13, 2012 3:05 pm

Smurf Glue?

Willy · Post by **Willy** » Thu Jun 28, 2012 11:50 am

Also... would this be an MOT failure? I read on another forum of somebody getting failed for just a speck of fluid - probably rain to be fair - on their sump.

Post by **Tim Leech** » Thu Jun 28, 2012 12:58 pm

Willy wrote:Also... would this be an MOT failure? I read on another forum of somebody getting failed for just a speck of fluid - probably rain to be fair - on their sump.

Its down to how Anal the MOT man is, normally a small oil weep is an advisoriy. If its pissing out though it would fail.

MULLEY · Post by **MULLEY** » Thu Jun 28, 2012 1:19 pm

Pre mot just clean & dry the area, that way it can't fail unless it starts dripping whilst being tested.

Post by **docchevron** » Fri Jun 29, 2012 12:56 am

to fail, IIRC it must leave a puddle a certain size on the floor within a certain time, although how large and how long I forget..

Willy · Post by **Willy** » Mon Jul 30, 2012 9:07 pm

Word on whoever suggested tightening the pipe unions, seems to have done the trick

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