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monobloc

A monobloc or en bloc engine is an internal-combustion piston engine where some of the major components (such as cylinder head, cylinder block, or crankcase) are formed, usually by casting, as a single integral unit, rather than being assembled later. This has the advantages of improving mechanical stiffness, and improving the reliability of the sealing between them.
Monobloc techniques date back to the beginnings of the internal combustion engine. Use of the term has changed over time, usually to address the most pressing mechanical problem affecting the engines of its day. There have been three distinct uses of the technique:

Cylinder head and cylinder
Cylinder block
Cylinder block and crankcaseIn most cases, any use of the term describes single-unit construction, opposed to the more common contemporary practice. Where the monobloc technique has later become the norm, the specific term fell from favour. It is now usual practice to use monobloc cylinders and crankcases, but a monobloc head (for a water-cooled inline engine at least) would be regarded as peculiar and obsolescent.

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  1. D

    Basin monobloc mixer tap low pressure on hot

    I have just refurbished our bathroom. Everything is fine except the new basin mixer (I have very little flow on the hot). According to the tap specifications I need 0.2 bar for it to operate properly? I would have thought that the system that I have would cover that! It is a gravity fed hot...
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    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  2. T

    no drain off valve....

    just been round a friends house to replace a kitchen tap , no drain off valve on hot or cold anywhere in the house, looked at the feed for the out side tap and it had no stopcock or check valve , just straight into the mains. apparently all the plumbing was done by a very well established...
    • that bloke.
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    • Replies: 20
    • Forum: Plumbing Jobs | The Job-board
  3. T

    ceramic sinks and hard to remove taps?

    any tips? its not a monobloc and it is quite ancient so i have no doubt it will be a bugger to loosen the nut to remove the tap. ive always had trouble with old taps on ceramic sinks so does anyone have any tips for safe trouble free removal?
    • that bloke.
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    • basin ceramic digital free hose monobloc remove safe sink sinks tap taps tips tools type a
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  4. H

    tightening monoblock

    i recently did a kitchen sink with monoblock, Where i came across a problem of how to hold the tap in position whilst they are tightened up i couldn't reach both the tap and nut as i was on my own. How do you guys do it any tips?
  5. T

    Problem with Swirl High Neck Monobloc Mixer Tap

    I recently bought the tap from Screwfix which I got a plumber to fit. Initially it dripped so I got the plumber back - we never understood why it dripped but it is ok after he fitted new washers. The next thing that happened was that the cold tap unscrewed causing water to gush out. By...
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    • Replies: 9
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  6. G

    kitchen sink tap holes

    I am fitting a new monobloc tap to my kitchen sink and was wondering is the hole for the tap a standard size or do they vary
  7. K

    monobloc mixer tap connector with female end...

    Hi - any help would be appreciated. I have a mixer tap in the bathroon basin, and the flexible tap connectors have started leaking. I have identified that the connector to the valve has a female end (15mm), however the only ones I have found online are the 10mmx30cmx15mm compression fitting...
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  8. R

    monobloc tails, flexi, copper....?

    hi, we have a monobloc tap that is getting old, few years ago had the heads changed to ones with a leaver (for elderly person with artheritis) however now it has started leaking/ dripping, 1. tiny leak from the grub screw on back of the tap and 2. constant drip from tap itself, if we have the...
    • rabu
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    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  9. A

    Hot water mystery

    System Megaflow CL170;Potterton Suprima 80, both located on lower ground floor (lgf). Kitchen sink hot water (lgf) only runs hot when hot water in lgf bathroom is turned on; pressure is always fine. (Hot water feedpipe to kitchen only heats up in same circs). Any ideas. ALD
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    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  10. D

    Help

    New to this site and not sure if i'm posting correctly but here goes. I have got monobloc design kitchen sink taps, my old set worked fine but the hot tap pressure on these is useless. The cold is fine but it is nearly impossible to run warm water as hot is so low. If i do run the hot and then...
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    • Replies: 7
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  11. M

    Newbie question on connecting taps...?

    Hi All Whats th best method of fitting a flexy to a tap. There are so many different types and I cannot seem to find one with a isolation valve and 15mm compression @ each end. My tap has 15mm tails, would it be best to compression fit an isolation valve on the main pipwork then use a short...
    • mmmadman
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    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  12. W

    tappy tap tap

    What do you use for undoing tap backnuts when they're recessed in shapes on the underside of baths and basins that make them difficult to get at? I've seen various things on market. I have is a basin wrench like this... Which never seems to fit any flipping backnut. All I use it...
  13. P

    Nabis Monobloc Sink Mixer

    Hi I have been asked to install a nabis Capo monoblock sink mixer, it is a straight replacement for the current mixer in the kitchen. I have not installed one before, are they fairly simple ? or is there something to watch out for? Are there any special tools you need or worth having...
  14. T

    Lack of pressure in mixer tap

    I have got a monobloc kitchen mixer tap which opens, shuts and mixes cold/hot water but it has lost pressure. It has a cartridge valve which operates like a joy stick i.e. up/down for flow and left/right for mixing. The cartridge valve does not show any signs of wear and tear or any breakage...
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    • Replies: 19
    • Forum: Plumbing Jobs | The Job-board
  15. S

    Monobloc mixer tap leaking

    Hi, i fitted a new monobloc mixer, no leaks from pipes etc, when i turn the tap on it starts to leak from the lever, any advice what this can be? to much pressure into the tap?
    • simo32
    • Thread
    • cold hot kitchen leaking mixer mixer tap monobloc pipes pressure replacement tap taps valve valves work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  16. S

    flex hose to monobloc mixer + service valve?

    Hi, have a basin sink with monobloc mixer tap (think it's "Home of Ultra Atena Mono Basin Mixer) which has a leak in the hot water flex hose connection. The flex hose for hot water appears to be 10mm thread going into mixer tap and built in service valve at the other end, which then connects...
    • SPB
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    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  17. 1

    Low pressure from moxer tap (hot)

    Hi all I've been round to look at someones new kitchen tap (monobloc) which they have installed themselves. They are concerned as the hot water pressure is very bad, which is mainly due to the fact that the tap is not designed for a low pressure system such as theirs (the cold water tank which...
    • 1976mjs
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    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  18. L

    Monobloc Kitchen Tap

    Hi all I installed a new kitchen sink and monobloc tap for a customer last week and yesterday i had a phone call from the customer as when he is turning on the hot water, it powerfully 'sprays' into in the kitchen sink which gets the kitchen surroundings soaking. The cold is fine, and the...
    • Liam - Trainee
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    • cold hot hot water kitchen monobloc sink spout tap taps valve water
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  19. N

    Changing mixer - hard to get to

    I need to change a mixer tap on a basin. The sink is inset into a vanity unit and the nuts are a nightmare to reach so much so I can only just touch them and cant even see them. The unit that the basin is on is siliconed to the wall and in an ideal world I would like to change the mixer in...
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    • Forum: Plumbing Jobs | The Job-board
  20. N

    Flexi tails

    Hi, I have some new monobloc kitchen taps & they have flexi tails with a female threaded fitting with a flat rubber washer, can I simply screw them to an isolating valve (having discarded the valves olive & nut) ? Thanks
    • notaclue
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    • connect copper fitting flexi hose inside kitchen leak monobloc rubber screw tail tails taps valve valves washer water
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
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