johnny_h Posted March 12, 2008 Report Posted March 12, 2008 So I started my newly rebuilt engine last night. I had replaced the main and big end bearings, thrust washers and piston rings as well has modifying the head and having new valves and guides fitted by Vulcan. It fired up nicely but started making a clattering sound so I stopped it and today I took the engine back out and took the sump off and noticed there was a gash in the sump splash bowl where the big end was hitting it. There was also swarf in the oil but I put this down to the metal that came from the sump. I cleaned it all up and put the sump back properly and re-installed the engine and fired it up again and success! Had over 60psi oil pressure according to the RS dash guage and she was running really sweet. I took it for a drive around the corner and it started knocking, I noticed there was no oil pressure so shut it off and fooked it off back into the garage. On closer inspection of the bits of swarf in the oil I noticed that most of it was non magnetic so that ruled out the swarf being part of the sump. Anyone know what these bits of metal may be? I guess my bottom end is fooked.
Tom Posted March 12, 2008 Report Posted March 12, 2008 could be parts of the main/big end bearings, did your engine turn nice and freely when you built it back up?
Col-ashtonmobile Posted March 12, 2008 Report Posted March 12, 2008 m8 take the engine and bring it over to me and i,ll gladly look at it with you
johnny_h Posted March 12, 2008 Author Report Posted March 12, 2008 Cheers Col, I'm probably gonna just lock it away and forget about it now, I've had enough mate.
Col-ashtonmobile Posted March 12, 2008 Report Posted March 12, 2008 ok have a think on it and let me know if you need any help
stephens_xpack Posted March 12, 2008 Report Posted March 12, 2008 I'd say the circular copper coloured piece is a coin?
johnny_h Posted March 12, 2008 Author Report Posted March 12, 2008 That made me laugh, which is good. Sarcasm is the lowest form of wit. I'm amused by simple things.
BIG G Posted March 12, 2008 Report Posted March 12, 2008 putting my home built pinto in this month and this post is getting me worried
johnny_h Posted March 12, 2008 Author Report Posted March 12, 2008 could be parts of the main/big end bearings, did your engine turn nice and freely when you built it back up? No, they are magnetic, I just checked my old ones. The bits I have are not.
antz Posted March 12, 2008 Report Posted March 12, 2008 putting my home built pinto in this month and this post is getting me worried same here i hope you get it fixed mr H
Fiesta Steve Posted March 12, 2008 Report Posted March 12, 2008 could be parts of the main/big end bearings, did your engine turn nice and freely when you built it back up? No, they are magnetic, I just checked my old ones. The bits I have are not. So them pieces are probably alloy then ? Piston ?
johnny_h Posted March 12, 2008 Author Report Posted March 12, 2008 could be parts of the main/big end bearings, did your engine turn nice and freely when you built it back up? No, they are magnetic, I just checked my old ones. The bits I have are not. So them pieces are probably alloy then ? Piston ? that's what I am thinking Steve. The skirts scraping against the bottoms of the bores?
Tom Posted March 12, 2008 Report Posted March 12, 2008 are big end/main bearings not a steel shell with a copper and some other metal coating
surfingturnip Posted March 12, 2008 Report Posted March 12, 2008 dont worry mate, give it some time to mull over and attack it with some fresh enthusiasm!
FlashCadillac Posted March 12, 2008 Report Posted March 12, 2008 I'd say the circular copper coloured piece is a coin? FPMSL
Toby Posted March 12, 2008 Report Posted March 12, 2008 are big end/main bearings not a steel shell with a copper and some other metal coating Yes they've got a soft white metal alloy on the steel backing so it could be a bit of bearing material. If the pistons hit you would have struggled to time the cam i would have thought. Could be cam bearing material too. Get it out mate, you're getting good at that bit, and you'll be smiling in a few days
RUSTYPUP Posted March 13, 2008 Report Posted March 13, 2008 Deffo looks like the white metal part of a big end/main to me. Not attracted to magnet as most of it (the steel part is still round the crank
4parajon Posted March 13, 2008 Report Posted March 13, 2008 Sorry to hear your bad news mate, but chin up and keep playing with it, think of the money you will save yourself and the satisfaction of building it yourself in the long run I daresay that there's not a single engine builder on this site that has'nt been where you are now at some point in there career
Toby Posted March 13, 2008 Report Posted March 13, 2008 I daresay that there's not a single engine builder on this site that has'nt been where you are now at some point in there career I thought Mickey's location was secret!!
w p e Posted March 13, 2008 Report Posted March 13, 2008 did you not check bearing crush on the dummy build or check the thrush washer end float. was the crank ground and the right size bearings supplied? could be the wrong size in the box it wouldnt be the first time. ive had that a few times
johnny_h Posted March 13, 2008 Author Report Posted March 13, 2008 did you not check bearing crush on the dummy build or check the thrush washer end float. was the crank ground and the right size bearings supplied? could be the wrong size in the box it wouldnt be the first time. ive had that a few times Anyone got a translator?
flyingbanana Posted March 13, 2008 Report Posted March 13, 2008 did you not check bearing crush on the dummy build or check the thrush washer end float. was the crank ground and the right size bearings supplied? could be the wrong size in the box it wouldnt be the first time. ive had that a few times Anyone got a translator? when you get new bearings the crank has be re-grounded to fit them correctly ie =10 tho -=20 tho etc..has if you didnt the crank re-grounded for the correct size of bearings their will be a size difference and then it would be alot stiffer to turn over or not at all...or worse which will be the problem you have had, so they are tight and cut the bearing apart good luck sorting it
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