By joining you will help ensure that we can continue to provide this service
JOIN HERE!
Just bought a R/80 at estate auction
Re: Just bought a R/80 at estate auction
Bob
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 3 times
- Been thanked: 36 times
Re: Just bought a R/80 at estate auction
Some of that might have to do with the quality of the oil and additives being used. IMO.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times
Re: Just bought a R/80 at estate auction
Doubtful under average riding you would ever experience wear from not having it as long as the oil and filter are changed regularly per schedule.
Measure in 2.25liters of oil after you have changed the filter, and then start the bike. This is what is required maybe it reaches the full mark on the dipstick maybe not? I use the dipstick on my bike as an indicator of oil use, not the final determiner of how much oil to add. Over filling can cause oil to be blown out of the crank case.
Of course if you have a deep oil pan, ignore this.
I don't recall seeing the milage of this bike listed? I also don't recall if you did a compression test or not. Burning oil can of course be caused by worn rings. A compression test or better yet a leak down test will tell a lot about overall condition of the bike. St.
Re: Just bought a R/80 at estate auction
Will post numbers when completed.
the bike just turned 40K miles. I have no reason to doubt the mileage.
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 3 times
- Been thanked: 36 times
Re: Just bought a R/80 at estate auction
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times
Re: Just bought a R/80 at estate auction
PO, should have had his fingers tied together to keep him from working on his bike. He had bored the jugs and replaced with oversize pistons and rings but, he lined all the ring ends up in a line instead of spacing them. One side even had them at the bottom of the piston.
Oh yeah, it smoked. Fortunately no major harm was done and putting the rings in properly and allowing them to re break in stopped the smoke. St.
Re: Just bought a R/80 at estate auction
On the center stand there is about 3 inches of free movement in the front forks before it reaches the spring.
Back to the oil issue. I added oil and brought it up to just below the full mark, while on the center stand. I then degreased the bottom end of the engine. Next day I notice a small puddle under the bike. Dripped for a few days and then stopped? Maybe a total of about 20 cc of oil. Will put the bike up on the lift and inspect to see if I can locate the leak, I don't believe its the pan.
- cbclemmens
- Posts: 223
- Joined: Sun Apr 25, 2021 2:21 pm
- Location: Apollo, PA
- Been thanked: 6 times
Re: Just bought a R/80 at estate auction
On your oil leak, check the oil filter gasket.
Craig
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times
Re: Just bought a R/80 at estate auction
Other areas that may be leaking are the push rod tubes, the oil pressure sender, main seal. Maybe I skimmed over your posts but I am not sure where you are seeing the oil drip? Middle of the bike, or off to one side?
Did you try measuring the oil as suggested? 2.25 Liters is the correct amount with a filter change on a stock oil pan.
Start up smoke from the left side when parked on the side stand is normal. St.