wildweasel_pt
Well-Known Member
Talking about oil leaks i got a leak for a while that i could not find the origin even though i looked and looked.
I started by seeing a puddle of yellowish oil underneath the clutch cover. I started by checking the engine and it was surprisingly dry. The damp parts were the swingarm on the crossbar, right exhaust (fwd) and frame lower right brace as well as the brake line that goes along that brace. Im attaching a local and overall pic as the bike is not stock.
I looked around and i couldn't find a place where the oil from the engine could have escaped and dripped on ground. I even thought that a final drive leak could have crossed to the right by the crossbar on the swingarm and exit trough there in some way what didn't make sense because the bike is tilted leftwards due side stand but i was getting desperate and that could be a solution, fairfetched but still possible somehow. As today i was removing sidepanels to start disassemble stuff to access rear headers (i have an exhaust leak due forgetting to install the headers exhaust gasket on left side) i found a little puddle of crud below the fuel solenoid for NOS system.
I looked around and i came to the conclusion that that oily substance had weeped from the small fuel filter at the solenoid input port. I was really puzzled with that because only fuel runs in there and not always, only when system is activated and i haven't done so lately so i got really suspicious how could that have happened. My thought were:
- The substance left is oily because the gasoline evaporated and left only the denser substance.
- Evidently theres a leak most probably due to bad teflon taping on the threads at the solenoid port
- Why was it leaking if no pressure was in there due the NOS pump not working?
- The leak was between the NOS pump output and the solenoid input.
- Is it possible somehow that some build up of pressure in the tank went through the fuel line, passed the NOS pump and exited through the little filter at the solenoid? If so isn't that a long way to go?
- The stock fuel pump uses a diaphragm but i do not know how the holley pump (NOS) works but by the noise it makes looks like its rotational because its does not clack but purrs...
- In that case the fuel is harder to pass through the stock diaphragm but it passes well by the holley pump.
What do you guys think? Im puzzled...
I started by seeing a puddle of yellowish oil underneath the clutch cover. I started by checking the engine and it was surprisingly dry. The damp parts were the swingarm on the crossbar, right exhaust (fwd) and frame lower right brace as well as the brake line that goes along that brace. Im attaching a local and overall pic as the bike is not stock.
I looked around and i couldn't find a place where the oil from the engine could have escaped and dripped on ground. I even thought that a final drive leak could have crossed to the right by the crossbar on the swingarm and exit trough there in some way what didn't make sense because the bike is tilted leftwards due side stand but i was getting desperate and that could be a solution, fairfetched but still possible somehow. As today i was removing sidepanels to start disassemble stuff to access rear headers (i have an exhaust leak due forgetting to install the headers exhaust gasket on left side) i found a little puddle of crud below the fuel solenoid for NOS system.
I looked around and i came to the conclusion that that oily substance had weeped from the small fuel filter at the solenoid input port. I was really puzzled with that because only fuel runs in there and not always, only when system is activated and i haven't done so lately so i got really suspicious how could that have happened. My thought were:
- The substance left is oily because the gasoline evaporated and left only the denser substance.
- Evidently theres a leak most probably due to bad teflon taping on the threads at the solenoid port
- Why was it leaking if no pressure was in there due the NOS pump not working?
- The leak was between the NOS pump output and the solenoid input.
- Is it possible somehow that some build up of pressure in the tank went through the fuel line, passed the NOS pump and exited through the little filter at the solenoid? If so isn't that a long way to go?
- The stock fuel pump uses a diaphragm but i do not know how the holley pump (NOS) works but by the noise it makes looks like its rotational because its does not clack but purrs...
- In that case the fuel is harder to pass through the stock diaphragm but it passes well by the holley pump.
What do you guys think? Im puzzled...
unk:
