R Cubed Posted September 19, 2012 Share Posted September 19, 2012 (edited) Got some pics of some parts on a Cummins engine ( 6BT ) and wondered if anyone out there could identify what they are. What is this water temp sender for ? front of engine by thermostat. Two black steel water pipes run from either side of the thermostat towards the back of the engine, are they cab heater ? What do the numbers on this engine plate mean, looks like bottom row is 108Kw at 2600 RPM Air compressor, air in on the right tube and out on the left tube with a pressure relief valve sticking up, is this correct, what is the little black plastic tube for at top of compressor head ? What is this temp sender at the back of the cylinder head, only one connection on it ? Injector pump (CAV) What is the rubber covered unit only 1 cable in it? I think its the stop solenoid? is it powered for engine to run, and remove supply to stop engine ? What is the small arm with a left bend in it and a dowel sticking up at the end just right of the main throttle leaver ? What is this vent for on the side of the crankcase, nearside just behind the air compressor/power steering pump? There is also a vent from the side cover panel for the push rods ? Edited September 19, 2012 by R Cubed pictures Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted September 19, 2012 Share Posted September 19, 2012 Won't work without the pictures.......:-D Quote Link to comment Share on other sites More sharing options...
R Cubed Posted September 19, 2012 Author Share Posted September 19, 2012 Won't work without the pictures.......:-D You are too quick try now....:cool2: Quote Link to comment Share on other sites More sharing options...
CornishMade Posted September 19, 2012 Share Posted September 19, 2012 I'm seeing my dad this saturday,I will ask him if he can help, he use to work for cummins how old is engine ? and what is the vehicle that it's going in Quote Link to comment Share on other sites More sharing options...
R Cubed Posted September 19, 2012 Author Share Posted September 19, 2012 I'm seeing my dad this saturday,I will ask him if he can help, he use to work for cummins how old is engine ? and what is the vehicle that it's going in I think the engine is about 1994 ish, out of a DAF tipper, have not got a vehicle in mind yet :cool2: Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted September 19, 2012 Share Posted September 19, 2012 (edited) Got some pics of some parts on a Cummins engine ( 6BT ) and wondered if anyone out there could identify what they are. What is this water temp sender for ? front of engine by thermostat. Monitoring water temp? [ATTACH=CONFIG]67898[/ATTACH] Two black steel water pipes run from either side of the thermostat towards the back of the engine, are they cab heater ? Reckon so! [ATTACH=CONFIG]67900[/ATTACH] What do the numbers on this engine plate mean, looks like bottom row is 108Kw at 2600 RPMnd The 6B is badged as a Model 310 for Leyland DAF applications. 108KW is correct. [ATTACH=CONFIG]67899[/ATTACH] Air compressor, air in on the right tube and out on the left tube with a pressure relief valve sticking up, is this correct, Yes what is the little black plastic tube for at top of compressor head ? Unloader valve air supply (when air press is at limit it unloads compressor allowing it to run free [ATTACH=CONFIG]67901[/ATTACH] What is this temp sender at the back of the cylinder head, only one connection on it ? Absolutely no idea :nut: [ATTACH=CONFIG]67902[/ATTACH] Injector pump (CAV) What is the rubber covered unit only 1 cable in it? I think its the stop solenoid? is it powered for engine to run, and remove supply to stop engine ? Power applied to run :-) What is the small arm with a left bend in it and a dowel sticking up at the end just right of the main throttle leaver ? Pretty certain that is the mechanical stop lever :-) [ATTACH=CONFIG]67903[/ATTACH] What is this vent for on the side of the crankcase, nearside just behind the air compressor/power steering pump? That is usually the oil filler tube :wow:There is also a vent from the side cover panel for the push rods ? [ATTACH=CONFIG]67904[/ATTACH] Surely it won't fit the poor old 352!!!! Edited September 19, 2012 by N.O.S. Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted September 19, 2012 Share Posted September 19, 2012 http://www.ebay.co.uk/itm/Cummins-B-Series-Engine-Operation-And-Maintenance-Manual-1997-J-N-133-/150824450514?pt=UK_CarParts_Vehicles_Manuals_Litterature_ET&hash=item231dd679d2#ht_786wt_1159 Should be able to pick up one of these a fair bit cheaper :cheesy: Quote Link to comment Share on other sites More sharing options...
TooTallMike Posted September 21, 2012 Share Posted September 21, 2012 Hi Richard, There are hundreds and hundreds of variants of this engine but all use essentially the same basic head and block. Variants include fuel pumps (Bosch, CAV, inline/rotary), pistons and rods, compressors, steering pumps, fan locations, idler locations, alternator locations and types, bellhousing diameters, turbo sizes, manifolds, inlet air coolers, sump types etc etc etc. I recently picked up two 6Bs to combine into the donor for my new WLF. One is from a bus and one from an 18-tonner and they are almost completely different aside from the heads and blocks. With regard to preparing one as a donor, I would start by stripping yours down to bare basics and block off all unwanted oil and air connections. Depending on what it is to be fitted into, you may require components from other spec. engines to correctly locate the fan etc. - MG Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted September 21, 2012 Share Posted September 21, 2012 I wonder if the water sensor at the back (one wire) is a warning light - once temp limit reached it earths wire putting light on? The 2 wire sensor would be for a gauge. Quote Link to comment Share on other sites More sharing options...
robin craig Posted September 22, 2012 Share Posted September 22, 2012 I agree with Too Tall, we have that engine in trucks and boats and other applications. So many variations as to ancillaries. As quoted the basic block and head are the same but that is where the similarity ends. If you looking for a donor then you are going to have to have the two side by side and swap the bits over as you go. The injection pump could be different or set up differently. R Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted September 22, 2012 Share Posted September 22, 2012 I suspect this is a cubed plot to dieselise something (no donor engine), but I can't work out what at the moment... Quote Link to comment Share on other sites More sharing options...
Degsy Posted September 22, 2012 Share Posted September 22, 2012 I suspect this is a cubed plot to dieselise something (no donor engine), but I can't work out what at the moment... I suspect a WLF or similar, I think he fancies a wrecker, perhaps to collect the GMC after Rosie's been driving the souped up version:drive: ..........and before you say anything Rosie remember we saw you driving the car in the mud at A&E, there are pics somewhere:-D Quote Link to comment Share on other sites More sharing options...
rosie Posted September 22, 2012 Share Posted September 22, 2012 I suspect a WLF or similar, I think he fancies a wrecker, perhaps to collect the GMC after Rosie's been driving the souped up version:drive: ..........and before you say anything Rosie remember we saw you driving the car in the mud at A&E, there are pics somewhere:-D I only drove there cos you told me to!!!!! Anyway IT RUNS!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
R Cubed Posted September 22, 2012 Author Share Posted September 22, 2012 Well we had a good morning, got some batteries and some diesel, bled the fuel system. We also screwed an oil pressure gauge in place of the broken light switch, sorted out the wiring for the starter and solenoid also checked the stop solenoid was working, that was all ok so went for a start. First we tried the starter briefly to see if the engine would turn over, ok. Then we connected the stop solenoid and cranked again had a bit of cough and splutter, ok. So this time it was a try till it started, with a couple of revolutions it picked up and was running without any throttle, good oil pressure too at tick over the gauge was giving a steady 45 psi, good. How can I find out the gear ratios for the gearbox which is fitted to it ? Quote Link to comment Share on other sites More sharing options...
CornishMade Posted September 22, 2012 Share Posted September 22, 2012 What is this temp sender at the back of the cylinder head, only one connection on it ? [ATTACH=CONFIG]67902[/ATTACH] I've had a word with Dad and he thinks this may be a cut out switch that is linked to oil pressure and or possibly temp, so very low oil pressure and it would cut out, and very high temp it would possibly do the same, depending on the model some had a button on the dashboard to press when starting to do with oil pressure, if that's any help or idea? Quote Link to comment Share on other sites More sharing options...
Degsy Posted September 22, 2012 Share Posted September 22, 2012 I only drove there cos you told me to!!!!!Anyway IT RUNS!!!!!!!!!! You're just like Jack......blame me for everything:blush: Quote Link to comment Share on other sites More sharing options...
berna2vm Posted September 22, 2012 Share Posted September 22, 2012 If it is a ZF gearbox (probably an S5-42 transmission) there will be an aluminium plate with the spread of ratios stamped on it. 5th gear is usually an overdrive ratio of between 0.80 and 0.70. Well we had a good morning, got some batteries and some diesel, bled the fuel system. We also screwed an oil pressure gauge in place of the broken light switch, sorted out the wiring for the starter and solenoid also checked the stop solenoid was working, that was all ok so went for a start.First we tried the starter briefly to see if the engine would turn over, ok. Then we connected the stop solenoid and cranked again had a bit of cough and splutter, ok. So this time it was a try till it started, with a couple of revolutions it picked up and was running without any throttle, good oil pressure too at tick over the gauge was giving a steady 45 psi, good. How can I find out the gear ratios for the gearbox which is fitted to it ? Quote Link to comment Share on other sites More sharing options...
R Cubed Posted September 23, 2012 Author Share Posted September 23, 2012 Looked in to the hose connections a little more and think we have got an idea of what they are for. See pics below also see the gearbox plate detailing the gear ratios ect. Quote Link to comment Share on other sites More sharing options...
R Cubed Posted February 7, 2013 Author Share Posted February 7, 2013 Surely it won't fit the poor old 352!!!! Cummins engine 6BT 150 HP Air compressor, air in on the right tube and out on the left tube with a pressure relief valve sticking up. Does this run straight to two air tanks via two non return valves or is there a lot more to it, So the little black plastic tube at the top of compressor head is the compressor unloader but where would that connect to ? [ATTACH=CONFIG]67901[/ATTACH] Have added some questions Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted February 7, 2013 Share Posted February 7, 2013 Connects to a Governor Valve. Somewhere near the first air reservoir (on a Bedford it is off the small condensing reservoir between compressor and main air reservoir) there is an air pipe which leads to a governor valve. The valve is usually adjustable to permit adjustment of working air pressure. Once air has built up to working pressure the governor valve opens, admitting air down the black pipe to the compressor unloader valve. Quote Link to comment Share on other sites More sharing options...
gritineye Posted February 8, 2013 Share Posted February 8, 2013 About that black plastic unloader pipe, it connects into the air system pipe work, not quite sure how but as I understand it, when up to pressure it lifts the valve in the compressors head so it runs light when up to pressure, to save power, fuel and wear. When I fitted the Cummins into Forceful it was all too complicate to incorporate this, due to confusing the original unloader valve on the air tank, so I just connected the compressor discharge pipe as per original, so now the compressor runs full time like the original and excess air is wasted to atmosphere through the tank valve. These compressors can produce a lot of carbon which can block the discharge pipes etc. so best to have a look before connecting up. No problems so far, just my way of doing as fewer mods as possible, keeping it simple.. I have a manual for Cummins L10 engines and many things are similar, if you need a scan of relevant pages just ask. Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted February 8, 2013 Share Posted February 8, 2013 As to what the output connects into - this is dependent upon what vehicle it goes into (a subject on which you're keeping silent.....), and how much of the air / brake(?) system you intend to design / build. Check out some typical vehicle air system schematics - Bedford Mk/MJ, Scammell Explorer, Diamond T - they're all fundamentally the same. Quote Link to comment Share on other sites More sharing options...
John Comber Posted February 8, 2013 Share Posted February 8, 2013 Hi Richard, just stumbled across your thread, the old Cummins was in a 10 ton Leyland DAF 45-150 on a J plate. It was a tipper spec from new so the gear ratios for that ZF box will be closer ratio. Thinking there will be a bible for it somewhere in the workshop, if that would be useful, i will try to unearth it. Quote Link to comment Share on other sites More sharing options...
R Cubed Posted February 8, 2013 Author Share Posted February 8, 2013 Hmmmmm what I could do with is a schematic for a Daf 45 with air over hydraulic brake system as this is what the engine was out of, so like you say it would seem sensible to follow the rest of the system. Bernard yes please if you could scan something it might be of help to expand my knowledge of this airie thing I am about to get involved in..................... Quote Link to comment Share on other sites More sharing options...
R Cubed Posted February 8, 2013 Author Share Posted February 8, 2013 Hi Richard, just stumbled across your thread, the old Cummins was in a 10 ton Leyland DAF 45-150 on a J plate. It was a tipper spec from new so the gear ratios for that ZF box will be closer ratio.Thinking there will be a bible for it somewhere in the workshop, if that would be useful, i will try to unearth it. Yes please if you could have a dig around for it that would help I think. Cheers Quote Link to comment Share on other sites More sharing options...
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