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I finally got a bit of spare time so I gave the engine a good clean at the car wash, then another with engine cleaner, it's still filthy.I removed the timing cover and to mu surprise a massive set of gears, these are in great shape, barely polished. The main shaft seal had fallen apart but there was no sign of significant oil leakage. I removed the oil pump it doesn't show signs of wear but I haven't measured it yet.Is there a kit to add a filter to these old girls, it looks as though there are possibilities.
......Is there a kit to add a filter to these old girls, it looks as though there are possibilities.
Is there a kit to add a filter to these old girls, it looks as though there are possibilities.
Re oil filtration, my motorcycle mentor taught me just to drop and replace the oil every thousand miles. It's a different world now.
Did I mention this old girl had 135,000 miles on the odo before the PO took the heads off 20 yesrs ago I'm the 2nd owner.
I finally got around to measuring the bearings with plastigauge, I measured each of the rods in 4 places 0.003.I couldn't figure out how to use the mains so I used a feeler, the only feeler I could insert was 0.05 mm, about 2 thou I thinkI couldn't find the allowable clearance in Guzziology, anyone know what it is?Roy
Thanks ChuckSo I'm a slightly over the limit on the rods then.I know everyone will recommend grinding and undersize bearings but that will soon mount up.$500 for the bearings $??? for grindingGiven that it's a $200 bike and it's made it to 130,000 miles I may just put off grinding for a while longer.I have the crank out, I assume you use a micrometer to measure the main bearings, I just carefully slid the bearing over the shaft and 0.05 mm feeler, it was a firm fit, I did not try to rotate.
If the crank measurements are close to being just over max. tolerance you could just run it as is, you don't have anything to lose, worst case you will need to rebuild it in the future. I had a V7 Sport crank ground last week plus they balanced the con rods, they do very good work, $375.00. Add in the two main bearings and the shells and you throw in another $500.00. Pair of Giladorni cylinder kits, reground tappets, small end rod bearings, new guides, springs and valves, you get to $2K very, very quick. I was yapping about the cost of rebuilding a Guzzi big twin to my machinist, then he showed me the bill for a Kawasaki Z1, close to $4500.00, ouch. Its all relative, relatively expensive that is. Clutch discs, U joint, carrier bearing, etc.... decide when to stop before you start, I have not learned that lesson yet, I am on engine #3.
The cylinder kits aren't available at the moment so I will go another route until I get her running at least.
I knocked the bearing out of the drive tunnel, it's shot so I will be waiting on another of those If I can't get it local.I made some progress on adding a filter, a visit to the wrecker yard and found the fitting from a Honda Civic has the right thread.A few things I need if anyone has a parts bikeFront engine bolt and the two aluminium spacers I had to cut throughThe lever that fits onto the cross over shaft for the rear brake, sort of an "L" shape with a spline fitting Actually the shaft as well, I had to grind off the part that holds a spring clip although I can probably figure out a fix
Here are some cross-references for the carrier bearing: http://thisoldtractor.com/moto_guzzi_loopframe_u-joint_carrier_bearing_cross-references.htmlHow are you adding an oil filter? External setup of some sort?I'm short on the parts you need, but I'm sure Mark @ Moto Guzzi Classics or Harper's probably have them.
The oil filter will be internal, there's lots of space.
I have been making some progress.I stripped the frame down and re-painted it with Por15, man that stuff sticks to your hands, I will wear gloves next time for sure ???I will be using this paint over all the original chrome which is long gone.I knocked the bearing out of the drive tunnel, it's shot so I will be waiting on another of those If I can't get it local.I made some progress on adding a filter, a visit to the wrecker yard and found the fitting from a Honda Civic has the right thread.A few things I need if anyone has a parts bikeFront engine bolt and the two aluminium spacers I had to cut throughThe lever that fits onto the cross over shaft for the rear brake, sort of an "L" shape with a spline fitting Actually the shaft as well, I had to grind off the part that holds a spring clip although I can probably figure out a fix