Pete Lewis Posted July 15, 2019 Report Share Posted July 15, 2019 its it camera shake but the rocker pedestal appears to move ?? Pete Link to comment Share on other sites More sharing options...
johny Posted July 15, 2019 Report Share Posted July 15, 2019 hmmm if the rods go up and down then the cam followers must almost certainly move as well to transmit the motion😮 Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 15, 2019 Report Share Posted July 15, 2019 and back to the knocking and coolant and oil loss , knocking doesnt loose oil or coolant but a blown fire ring can contact the piston Pete Link to comment Share on other sites More sharing options...
rozentas Posted July 15, 2019 Author Report Share Posted July 15, 2019 Was going to take another video but a bit of smoke came out of the third push rod hole from the back of the engine so better not Link to comment Share on other sites More sharing options...
johny Posted July 15, 2019 Report Share Posted July 15, 2019 Pity as Im afraid we havent advanced very much and I havent got any idea, even roughly, of what the problem is.... Link to comment Share on other sites More sharing options...
rozentas Posted July 15, 2019 Author Report Share Posted July 15, 2019 Should oil be flowing out of the top with the rocker cover off if the oil pump is working properly? Link to comment Share on other sites More sharing options...
johny Posted July 15, 2019 Report Share Posted July 15, 2019 yes oil is pumped up to that area to lubricate the rockers, cam followers and valves. With the cover on it just runs back down into the sump Link to comment Share on other sites More sharing options...
johny Posted July 15, 2019 Report Share Posted July 15, 2019 Id still like to know if theres a puff of air from each sparkplug hole when the engine is turned either by hand (although did you say this wasnt possible?) or starter... Link to comment Share on other sites More sharing options...
NonMember Posted July 15, 2019 Report Share Posted July 15, 2019 24 minutes ago, rozentas said: Should oil be flowing out of the top with the rocker cover off if the oil pump is working properly? At the end of your video you can see a little dribble of oil emerging from the little hole in the rear-most few rockers. Believe it or not, that is the correct amount of lubrication for the top of the engine at idle, though you should be seeing it on all eight rockers. Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 15, 2019 Report Share Posted July 15, 2019 stop .... get a compression test done to prove the basics we cant help with guessing . with coolant loss , oil loss and a right odd racket it needs some practical clues to proceed Pete Link to comment Share on other sites More sharing options...
rozentas Posted July 15, 2019 Author Report Share Posted July 15, 2019 Am getting a compression tester for my birthday on Wed so will do a test then Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 15, 2019 Report Share Posted July 15, 2019 make sure throttle is held open and all plugs out when cranking it up Pete Link to comment Share on other sites More sharing options...
johny Posted July 15, 2019 Report Share Posted July 15, 2019 This may not seem like the best way but I bet youre learning loads and its far better than books or someone just telling you👍 Link to comment Share on other sites More sharing options...
rozentas Posted July 15, 2019 Author Report Share Posted July 15, 2019 Johny, absolutely right..................thanks Link to comment Share on other sites More sharing options...
rozentas Posted July 18, 2019 Author Report Share Posted July 18, 2019 Have fit the new oil pressure sensor, now oil light comes on at ignition and goes off soon after. Have fit oil pressure gauge, goes up to 50 psi within ten seconds of ignition I got a compression tester and did a dry test, the engine had been started for a minute but did not want to do any damage so only a minute. No 1 was 150 psi, no 2 was 144 psi, no 3 was 135 psi, no 4 was 150 psi Repeated the test on no 3 was still 135 Repeated the test on 2 went up to 150 Grateful for any feedback. Will now do a wet test with some oil in no 3 Link to comment Share on other sites More sharing options...
rozentas Posted July 18, 2019 Author Report Share Posted July 18, 2019 Wet test on no 3 155 psi Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 18, 2019 Report Share Posted July 18, 2019 thats not as bad as we expected, so wheres the clatter coming from? still looking like a full strip down but you have decent oil pressure , and workable compression 3 might be a bit low but not disastrously so. maybe an indicator as the wet improved it broken gudgeon pin maybe or cracked piston . Pete Link to comment Share on other sites More sharing options...
johny Posted July 18, 2019 Report Share Posted July 18, 2019 Probably should have asked this earlier but as you originally discounted the alternator as the problem can we assume the noise comes from the front of the engine? Link to comment Share on other sites More sharing options...
rozentas Posted July 18, 2019 Author Report Share Posted July 18, 2019 I removed the fan belt to discount the water pump. I think the noise is coining from the area under the rocker cover, not at the front of the engine. Link to comment Share on other sites More sharing options...
johny Posted July 18, 2019 Report Share Posted July 18, 2019 ok so did it seem to get louder when you ran the engine with the rocker cover off? Link to comment Share on other sites More sharing options...
rozentas Posted July 18, 2019 Author Report Share Posted July 18, 2019 No I can’t say it got noisier but it seemed to be coming from underneath Link to comment Share on other sites More sharing options...
johny Posted July 18, 2019 Report Share Posted July 18, 2019 well you could check the valve clearances when the engines cold. Its not likely to be the problem but might show up a problem and is another great learning opportunity especially as its a routine job that needs doing from time to time.... Link to comment Share on other sites More sharing options...
Ben Caswell Posted July 18, 2019 Report Share Posted July 18, 2019 Hate to say it but it sounds just like another video and that was a broken crank at the front web Link to comment Share on other sites More sharing options...
johny Posted July 18, 2019 Report Share Posted July 18, 2019 does sound similar but surely you wouldnt get compression on all cylinders? Link to comment Share on other sites More sharing options...
Ben Caswell Posted July 18, 2019 Report Share Posted July 18, 2019 The crank had broken in front of number one journal so the engine was still running on all four amazing as it sounds it was driven home like it. Link to comment Share on other sites More sharing options...
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