maok Posted November 30, 2018 Author Share Posted November 30, 2018 (edited) 5 hours ago, Spinneyhill said: Might a compression test be useful? There is probably too much damage to even attempt to turn it over again with the starter . It really sounds terrible. I have given up on it. Good news is that I will have the new engine before xmas this time....:) The mystery of the clutch assembly solved. Interestingly, the pressure plate that came with the old engine (from sasha39) the inner circumference was taken out by 5 to 10mm (haven't measured it yet) but had the standard rubber style clutch plate, so there were no clearance issues. But the one in the existing engine with the new style of clutch plate (with the springs) and wider centre hub, the pressure plate inner circumference was NOT taken out, hence the contact on the rivets. New clutch plate with large centre hub Rivets overlapping pressure plate Old style of pressure plate with small hub. I don't have a pic of the other pressure plate that the inner circumference has been taken out on previously, it is at the machinist to be balanced with crank. So the new clutch plate will go with the old pressure plate with no clearance issues this time. Edited November 30, 2018 by maok additional info (see edit history) 1 Link to comment Share on other sites More sharing options...
maok Posted December 1, 2018 Author Share Posted December 1, 2018 Today's substitute? 1 Link to comment Share on other sites More sharing options...
keiser31 Posted December 1, 2018 Share Posted December 1, 2018 What a GORGEOUS 1936 DB! A little longer than the one I had. 1 Link to comment Share on other sites More sharing options...
maok Posted December 2, 2018 Author Share Posted December 2, 2018 This one goes down hill a little better than the '28...:) Link to comment Share on other sites More sharing options...
maok Posted December 5, 2018 Author Share Posted December 5, 2018 Here is the offending piston. Link to comment Share on other sites More sharing options...
Sasha39 Posted December 6, 2018 Share Posted December 6, 2018 Sorry to see that mate. Link to comment Share on other sites More sharing options...
maok Posted December 6, 2018 Author Share Posted December 6, 2018 (edited) 39 minutes ago, Sasha39 said: Sorry to see that mate. No need to be sorry mate, your engine will come to life soon. Bonnie will go down hill 10% faster in 2019...:) Edited December 6, 2018 by maok additional info (see edit history) 1 Link to comment Share on other sites More sharing options...
Vintageben Posted December 6, 2018 Share Posted December 6, 2018 Oh heck that’s worse then what my engine looks like, ah the fun of vintage motoring. Best of luck with getting it back on the road Link to comment Share on other sites More sharing options...
Spinneyhill Posted December 6, 2018 Share Posted December 6, 2018 It is amazing how they will run on until something just goes a little too far, then that little noise we thought was just a tappet gets bigger, and bigger, before we investigate. Link to comment Share on other sites More sharing options...
maok Posted January 4, 2019 Author Share Posted January 4, 2019 #6 piston rattle...😲 Link to comment Share on other sites More sharing options...
maok Posted January 4, 2019 Author Share Posted January 4, 2019 (edited) . Edited January 4, 2019 by maok wrong thread (see edit history) Link to comment Share on other sites More sharing options...
maok Posted January 5, 2019 Author Share Posted January 5, 2019 On 11/26/2018 at 11:02 AM, maok said: Regarding the crank end play, its probably way out of spec. If that was causing this then I would image it would happen on a more regular basis, but stuff do I know . Yes, its 'character building' trying to find where this issue is ...lol Interestingly I measured this the other day and it was only about 0.006" play. Link to comment Share on other sites More sharing options...
Vintageben Posted January 5, 2019 Share Posted January 5, 2019 Oh dear no wonder it was making horrible noises. We had a similar thing happen in a 3208 Cat engine that’s in one of our harvesters a couple of years ago, it got us through with a bit of rattling and extra oil consumption. There were a lot of piston part in the sump when we removed it 😧. Anyway another engine solved the problem. On that note I don’t know if you have read the below line about bearing replacement in your manual but I wish it was this simple. Link to comment Share on other sites More sharing options...
maok Posted March 3, 2019 Author Share Posted March 3, 2019 (edited) Well, a new engine didn't fix the rattle..🙁 It seems to happen only when I back off the power, ie, pushing the clutch pedal in or releasing the throttle, regardless of the gear it's in. I can feel the vibration of the rattle via the gear stick and some from the clutch pedal. No rattle when accellerating or constant cruise. Any ideas? Edited March 3, 2019 by maok (see edit history) Link to comment Share on other sites More sharing options...
maok Posted March 7, 2019 Author Share Posted March 7, 2019 Drum roll.................................. Drive shaft had worn inside the pockets of the balls. When I inspected the drive shaft initially, the balls looked GREAT! However, neglected to look inside the cups, which are worn badly. Why do they make the balls from hardened steal and the cups from mild steal? It surely is easier to replace the balls than the cups. New modern drive shaft (almost a hotrod now) and she is less rattly, I can hear the coins rattling in my pockets...lol Link to comment Share on other sites More sharing options...
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