NickTheFox Posted August 21, 2016 Share Posted August 21, 2016 So I rebuilded the oil pump on my 1200 as it was leaking and looked like someone had used clear silicon to seal it up. I pulled it to bits and ended up using a spare pump internals that I had as they were in better shape. I tried to bench test the pump and it didn't work too well so I thought I might not have been spinning it fast enough for it to work. I have it on the car now and have tried turning it over with coil lead off but haven't really seen any proof of it pumping correctly. Do oil pumps only start to pump once the motor is running or have I done something wrong? I understand that the pump has to suck oil up through the pickup tube so maybe just cranking an engine over does give it enough speed to be able to do this? Any thoughts on this would be super helpful! I don't want to start up a motor with a dud pump Quote Link to comment Share on other sites More sharing options...
tortron Posted August 21, 2016 Share Posted August 21, 2016 you might need to prime the pump with some grease to get it going otherwise it should be able to spray oil all over the garage Quote Link to comment Share on other sites More sharing options...
Hemi Posted August 21, 2016 Share Posted August 21, 2016 Yeah, just needs a good prime. Engine running is usually enough to get this done but maybe not by hand. Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted August 22, 2016 Share Posted August 22, 2016 Only a series whete I haf to prime the oil pump was completely poked. Quote Link to comment Share on other sites More sharing options...
NickTheFox Posted August 22, 2016 Author Share Posted August 22, 2016 How many beers have you had Bart? 1 Quote Link to comment Share on other sites More sharing options...
Hemi Posted August 22, 2016 Share Posted August 22, 2016 Take the plugs out. It will reduce the load on the bearings while your spinning it over even though this is minimal. Sounds messy, but a good way to see if it's pumping. Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted August 22, 2016 Share Posted August 22, 2016 Squirt the pump full of mooreys or lucas. (Whichever your prefered parts place stocks) if you do it with the pump off and turn the shaft by hand you'll feel How much harder it Is to turn. Then itl suck harder than your mum. With the pump back on the motor, if you prefill the oil filter to almost the top yoye motor will see oil pressure faster as there will be less wait to fill the filter. Quote Link to comment Share on other sites More sharing options...
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