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R50/2 rebuild
R50/2 rebuild
So the question is...does anybody have any idea if I need to worry and if so, where to look? It sounds like it is coming from the front of the engine. Taking the timing cover off has no effect.
Thanks for any input, before I borrow a trailer and drive 200 miles back to have the pro look at it again, something he will do, but really doesn’t want to!
Icarus
- miller6997
- Posts: 1185
- Joined: Fri Oct 27, 2006 3:00 am
Shot in the dark
'67 R69S
'13 F800GT
Altadena, California
That would be good news!
Icarus
- malmac
- Posts: 796
- Joined: Sun Jun 29, 2014 2:10 am
- Location: Toowoomba, Australia.
- Has thanked: 1 time
A couple of suggestions
2. Generator brushes - remove brushes, bike will run and will rule out that as a possible cause.
3. Front or rear oil seal on crankshaft installed dry.
4. Clutch - is the sound affected by pulling in the clutch?
That is all I can think of at the moment.
Mal
Toowoomba- Australia
Not the clutch or the generator brushes...
Icarus
Re torqued the heads and
I’m loathe to ride it, risking damaging the new crank without a better idea of what i’m Up against. It does seem to be in the front. What is the risk if it is the breather plate? The breather seems to be functioning normally, puffing out regularly.
I can’t really listen with a stethoscope without someone else to trip the throttle. Suggestions?
Icarus
NEW CLUE, AND A GOOD ONE
I'll assume the "squeak" is constant and not intermittent. A cylinder leaking pulses with the piston moving up and down.
The warmed up engine may be a clue. Sorry, my news is not going to be simple. Ask your mechanic if he used a press to install the bearings. If he did, he wasn't familiar with these engines and may have done a couple of things.
1. Pressing the bearings in can score the bearing bores resulting in a loose fit or tight fit. A loose fit would result in the bearing spinning in the bore. A tight fit on the rear might hold it too tight pulling on the front bearing causing it to squeal.
2. You din't say who assembled it so, it's also possible crankshaft shims are incorrectly installed.
Either way, after looking at the outside, the only thing that can be done is to disassemble it, inspect it, and measure everything out, and reassemble it.
Other options are the cam drive gears but they would be a whirring sound. Also, the oil pump shafts could cause a noise but, I'm thinking should rub out pretty quickly.
Sorry, not better news. Good luck. There's a lot of people root'n for ya.
John
55 - R50, 06-R1200RT, 74 Ducati 750GT, 57 - R69, 78 - R100S
It is a squeak as you I bring
Icarus
Sounds Like
Dave