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Showing results for tags 'perkins 3.152'.
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I came across this post on TractorByNet and I have a remarkably similar problem: I wonder whether Richardf59 ever solved his issue satisfactorily. I have a D3.152 dating back to pre-1992 (the age of the boat), which I can only guess was taken from an MF135 tractor or generator and marinised for installation into a narrowboat. We have had it for two years without much problem, except for some clogged fuel filters, but broke down in March this year and we had to have the engine removed and rebuilt after finding one piston was oval in the cylinder; all bearings, liners and pistons replaced, and new oil pump fitted. In fact the engine had to come out twice, because during the first re-installation something metallic smashed up the crown of one of the new pistons. Anyway, when we finally had everything back in order she ran beautifully; from cold the idling oil pressure was about 40-50 psi. However, I have found that an hour or so after getting up to temperature (75 C, constant) the oil pressure gauge can fluctuate rapidly from 10-60 psi, even at normal cruising speeds, often mimicking the tone of the engine (revs fluctuating?), and to maintain good pressure we have to push the revs up higher than normal. At idle and tick-over the pressure reads a constant 20 psi, but I am concerned that this could also be bottoming out on the gauge range and simply a reading error. The sensor and gauge are electric, so I shall be swapping with a new one and also testing with a hydraulic pressure gauge next week. At normal cruise speeds on some long days (6-8 hours running) the oil pressure fluctuates around 30 psi and above, so the engineer who rebuilt it says it is within normal operating parameters, but this doesn't fill me with confidence for the long term. I use a 15W40 oil and changed the oil and filters after 50 hours after re-installation, which made no difference. I have no rev counter, just gauges for temperature, oil pressure and battery charge. Any thoughts/suggestions welcome.
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- perkins 3.152
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Hi there. I installed Perkins 3.152 engine in my boat. The engine is from loader. What is direction of movement of the coolant? From the lower branch pipe of the pump to the thermostat housing or from the thermostat housing to the lower branch pipe of the pump? I have outboard cooling system, is the tube under the water line. Now time i just testing the engine after installation in boat. When thermostat is opened the tube from the thermostat housing to the outside of boat is hot, the tube from outside connected to the pipe of the pump is warm. I was surprised because I always thought that the cold water has to go in the cylinder head because the cylinder head is the most heated part of the engine. I ask because I need to correctly put the heat exchanger of the hydraulic gearbox - to the coolant exit from outside of hull. I'm so sorry for my english. I'm from Russia.