andy couchman Posted April 24, 2014 Share Posted April 24, 2014 Think mine needs replacing and Merlin Motorsport seem to offer them. Only thing is they come in M14 or M10 metric sizes or 1/8NPT. Am I right in thinking I need the 1/8 NPT fitting? I need the 0-10 bar sender to match the gauge. Thanks. Andy Link to comment Share on other sites More sharing options...
elie boone Posted April 24, 2014 Share Posted April 24, 2014 1/8 NPT sounds about right, a Crossflow has no Metric threads, otherwise give Merlin a ring, they are always extremely helpful. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted April 24, 2014 Member Share Posted April 24, 2014 The archives suggest they're not all the same... or that some people have little mechanical sensitivity... "1/8th nptf" M3... or M4! Jonathan Link to comment Share on other sites More sharing options...
Nigel Riches Posted April 24, 2014 Share Posted April 24, 2014 If you figure out which you need, and one from a metric Zetec does the trick I have one removed from said engine, got the numbers if you want them. Nigel. Link to comment Share on other sites More sharing options...
Roger King Posted April 24, 2014 Share Posted April 24, 2014 Crossflow oil gallery plugs are all either 1/4"NPT or 1/8"NPT,the 1/4" one being the bigger. The only 1/8" one on a standard engine is the one that sits between the engine mounting holes on the inlet side. I can't give you a definitive answer as to which you need because I don't know which hole you are using for the sender, but normally it would be 1/4"NPT. Link to comment Share on other sites More sharing options...
andy couchman Posted April 24, 2014 Author Share Posted April 24, 2014 Thanks all. Complicated by the fact that the car is dry sumped and the sender sits in the remote oil filter housing. And the guy I bought it from S/H is sadly no longer with us. I guess the only way to be sure is to remove it and check? Daft question - if I remove it will oil drip/spurt out everywhere? (Probably best to do it when the engine is not running too I guess... ). Thanks. Andy Link to comment Share on other sites More sharing options...
Guy Lowe Posted April 24, 2014 Share Posted April 24, 2014 Mine was wet sump so in the side of the block and 1/8" NPT. Got it from REDLINE Guy Edited because I didn't read the bit about the dry sump Edited by - Guy Lowe on 24 Apr 2014 12:48:39 Link to comment Share on other sites More sharing options...
Roger King Posted April 24, 2014 Share Posted April 24, 2014 Completely unknown quantity if it's in the remote filter housing I'm afraid. All you can do it pull it out and determine the thread. Equally, it's not possible to tell if it will leak when removed without seeing the installation. It depends on the installed height of the filter housing. If it's lower than the top of the oil level in the tank it will likely leak, but if it's higher it will probably just give a few drips. If you do it with the engine running you are a fool!!!!!!!! Link to comment Share on other sites More sharing options...
andy couchman Posted April 24, 2014 Author Share Posted April 24, 2014 Cheers chaps. Turned out it was M10. There's a code on the hexagonal 'bolt' on the body of the unit marked 29/10 which is an abbreviation of its full part number. The Merlin website is very helpful and once I clicked on what I thought was the right item that code came up. I've now made a note so that I know what to do if there's a next time! Just got to clean up a gallon of oil from all over the garage (knew I should have listened to Roger's 😬 advice Actually, no I didn't do that, although you're right to make the point Roger. I did once connect the dishwasher into the gas supply - plumbing now being one of the many things SWMBO has banned me from. Just a slight weep of oil. Incidentally, is there any advantage/disadvantage to running the remote filter above the oil tank level? Mine sits just under the top crossbrace. Thanks Andy Link to comment Share on other sites More sharing options...
Phil G Posted April 24, 2014 Share Posted April 24, 2014 Bit of a hijack – sorry Andy Where can I get one of these here at a reasonable price? Number stamped on hex thread is 32/14 Link to comment Share on other sites More sharing options...
Roger King Posted April 24, 2014 Share Posted April 24, 2014 In general you should try and run the components of a dry sump system at similar height to each other. You don't want anything mounted much higher because it will encourage an air lock to form where the hose rises and falls. That said, none of this is supercritical so long as the layout is sensible. Link to comment Share on other sites More sharing options...
andy couchman Posted April 25, 2014 Author Share Posted April 25, 2014 Thanks Roger - your engine advice is always much appreciated and we don't tell you that enough! Phil - I wonder if it has to be a Stack item? The Merlin Motorsport website includes technical details of their VDO senders and I guess if the numbers are the same for the Stack unit, the two should be interchangeable? The VDO units seem to be around half the price - maybe worth phoning Merlin* to see if they can help? *Other providers are available and I have no connection to Merlin but have been a customer for some years (still don't get a discount though 😔.). Andy Link to comment Share on other sites More sharing options...
Phil G Posted April 25, 2014 Share Posted April 25, 2014 Thanks Andy - I'll do that. Link to comment Share on other sites More sharing options...
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