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Where did the oil go? #749205
09/14/18 10:30 pm
09/14/18 10:30 pm
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Hillbilly bike Offline OP
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Hillbilly bike  Offline OP
BritBike Forum member
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
I am working on a friend's 71 T120...It's cafe racer, it's ugly and very loud....I rebuilt the engine and assembled the bike about 5 years ago. I checked the oil, it was down a bit and looked clean.. and greenish........I take the bike for a 10 mile test ride..Make a few adjustments and go out for a few more miles..back in the shop I left the bike running to check the carbs and notice the exhaust is smoking.. I rev it and a big cloud of blue.....Shut the bike off and check the oil again suspecting to see a low level..I see no oil..Drain the frame tube and get about 6 ounces...Pull the sump plug from the engine there's where the oil is hiding...And quite a bit in the primary also...No debris in the screens
Pull the timing cover and pump...pump is clean and passes all tests...blow out all oil galleys and lines, all are fine... What is it with this mysterious oil crap? My 79 T140 dropped all oil pressure a few months ago but there were no faults found after doing the same as above And the bike has been fine since then..

Last edited by Hillbilly bike; 09/14/18 11:53 pm.

I ride dinosaurs....
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Re: Where did the oil go? [Re: Hillbilly bike] #749210
09/14/18 10:57 pm
09/14/18 10:57 pm
Joined: Jan 2004
Posts: 3,823
ca, us
D
DMadigan Offline
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D
Joined: Jan 2004
Posts: 3,823
ca, us
Disconnected pickup tube?

Re: Where did the oil go? [Re: Hillbilly bike] #749213
09/14/18 11:55 pm
09/14/18 11:55 pm
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Hillbilly bike Offline OP
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Hillbilly bike  Offline OP
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Posts: 3,930
Running from demons in WNY
Everything is connected ,no oil leaks...The pick up tube in the sump is in place....I'll just have to put oil in it and see what happens


I ride dinosaurs....
Re: Where did the oil go? [Re: Hillbilly bike] #749214
09/15/18 12:00 am
09/15/18 12:00 am
Joined: Dec 2013
Posts: 4,294
ohio, usa
kevin roberts Offline
fefsa
kevin roberts  Offline
fefsa
Joined: Dec 2013
Posts: 4,294
ohio, usa

is the pickup tube loose, like, in place but sucking air around where it's stuck in?

where else could the return side lose vacuum?


"Are bikes so nice as all that?" asked the mole, shyly...

"Nice? They're the only thing," said the Water Rat Solemnly, as he leaned forward on the handlebars. "Believe me, my young friend, there is nothing -- absolutely nothing -- half so much worth doing as simply messing about with bikes."
Re: Where did the oil go? [Re: Hillbilly bike] #749221
09/15/18 1:31 am
09/15/18 1:31 am
Joined: Nov 2012
Posts: 658
Isle of Wight, UK
K
koan58 Offline
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koan58  Offline
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K
Joined: Nov 2012
Posts: 658
Isle of Wight, UK
Yer having a laugh, surely? You know pragmatic stuff as good as most!

Re: Where did the oil go? [Re: Hillbilly bike] #749222
09/15/18 1:39 am
09/15/18 1:39 am
Joined: Sep 2001
Posts: 528
Great Southern Land
tridentt150v Offline
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tridentt150v  Offline
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Joined: Sep 2001
Posts: 528
Great Southern Land
You have the oil pump gasket on back to front? It will pump oil but is blocked from being able to pump it back.

Re: Where did the oil go? [Re: tridentt150v] #749228
09/15/18 2:03 am
09/15/18 2:03 am
Joined: Apr 2017
Posts: 547
NJ USA
M
Mori55 Offline
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Mori55  Offline
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M
Joined: Apr 2017
Posts: 547
NJ USA
If he never had it off in the first place unless it flipped itself around🙄

Last edited by Mori55; 09/15/18 2:03 am.
Re: Where did the oil go? [Re: Mori55] #749241
09/15/18 4:35 am
09/15/18 4:35 am
Joined: Sep 2001
Posts: 528
Great Southern Land
tridentt150v Offline
BritBike Forum member
tridentt150v  Offline
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Joined: Sep 2001
Posts: 528
Great Southern Land
Originally Posted by Mori55
If he never had it off in the first place unless it flipped itself around🙄

Didn't see him say that anywhere....but yeah, I was just brainstorming the idea, the return isn't/wasn't working for a reason.

Re: Where did the oil go? [Re: Hillbilly bike] #749254
09/15/18 8:01 am
09/15/18 8:01 am
Joined: Oct 2003
Posts: 3,665
Emsworth, sunny south of Engla...
D
dave jones Offline
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dave jones  Offline
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D
Joined: Oct 2003
Posts: 3,665
Emsworth, sunny south of Engla...
Do you just need to clean the pump's return side?

Dave

Re: Where did the oil go? [Re: Hillbilly bike] #749259
09/15/18 10:44 am
09/15/18 10:44 am
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Hillbilly bike Offline OP
BritBike Forum member
Hillbilly bike  Offline OP
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Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Let me put it this way...the bike had no problems and then just like that, all the oil is in the engine and primary without me doing anything to the engine or oiling system..My first clue something was wrong ? The clutch action suddenly became sluggish,...

Here's what the ugly bike looks like...I was instructed to replace the clip ons with "tracker" bars, replace nearly brand new Spitfire tires with "something that looks zombie apocalypse ready" ,I added the gaiters and home made baffles in the straight pipes.....Although the tires hum a bit on the road they do handle just fine and certainly better than K70 Skidmores..This bike has been abused by stupidly in it's short life.. The owner had used it for about a year and then his girlfriend took it for a ride on the stale fuel ,lugged the engine and holed a piston...I fixed that..He put on shocks from a Japanese bike with no thought to travel....Then he and her took a short ride double and the rear tire rubbed on the modified seat frame, ruining the tire...Of course no one bothered to check why smoke was coming from the tire....Whatever...

[Linked Image]


I ride dinosaurs....
Re: Where did the oil go? [Re: Hillbilly bike] #749287
09/15/18 5:56 pm
09/15/18 5:56 pm
Joined: Nov 2005
Posts: 7,457
Back on the mainland!
JubeePrince Offline

Life member
JubeePrince  Offline

Life member
Joined: Nov 2005
Posts: 7,457
Back on the mainland!
Originally Posted by Hillbilly bike
This bike has been abused by stupidly in it's short life..


That's what you call 'job security'.

Is it possible something got stuck in the return side of the pump and was dislodged and missed upon disassembly?

Any kinks/tight corners/delamination in the return side hose(s)?

Just grasping at straws...

Cheers,

Steve


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...
Re: Where did the oil go? [Re: Hillbilly bike] #749293
09/15/18 6:49 pm
09/15/18 6:49 pm
Joined: Jan 2014
Posts: 2,110
South cone
R
reverb Online content
BritBike Forum member
reverb  Online Content
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R
Joined: Jan 2014
Posts: 2,110
South cone
...Tony happened to me couple of different times; one in my pre unit and one in this 79 unit.
One with an original 1948 pump and this one with a rotary. in both cases I did not found anything, only a few tiny bubbles in the rotary.
With the 48, possibly the ultra tiny debris "cleaned" or passed itself but in that moment of non action, the oil went down...
I am not saying that this is the problem in that bike; but happened to me.

Re: Where did the oil go? [Re: JubeePrince] #749304
09/15/18 9:05 pm
09/15/18 9:05 pm
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Hillbilly bike Offline OP
BritBike Forum member
Hillbilly bike  Offline OP
BritBike Forum member
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Originally Posted by JubeePrince
Originally Posted by Hillbilly bike
This bike has been abused by stupidly in it's short life..


That's what you call 'job security'.

Is it possible something got stuck in the return side of the pump and was dislodged and missed upon disassembly?

Any kinks/tight corners/delamination in the return side hose(s)?

Just grasping at straws...

Cheers,

Steve
Job security perhaps if I had an actual busy bike shop instead of doing a low cost "favor"....I charged him 600 bucks total ,I bought the tires, bars,hand grips tail light and did the labor plus messing with the rear shocks...And then the oil problem and three quarts of oil .Pulled the timing cover and pump, ...Plus after "feeling" the engine respond ,I raised the carb needles one notch...
It;s possible there was debris that fell out unnoticed.The oil hoses...I put in motor oil ,started the bike and it took about a minute to show a strong return flow...I took a short ride and the oil is still returning as normal...The clutch feels better and the exhaust stopped smoking...I have no idea what was wrong with it..Just like the oil pressure failure on my 79 T140... I think the bikes wanted attention....


I ride dinosaurs....
Re: Where did the oil go? [Re: Hillbilly bike] #749311
09/15/18 11:35 pm
09/15/18 11:35 pm
Joined: Aug 2014
Posts: 1,668
OZ
Triless Online content
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Triless  Online Content
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Joined: Aug 2014
Posts: 1,668
OZ
And one of my nieces asked why I considered my motorcycles of the female gender, my Triumphs in particular ................ ( I will now be hiding for a while !)

Re: Where did the oil go? [Re: Hillbilly bike] #749315
09/16/18 12:18 am
09/16/18 12:18 am
Joined: Jan 2014
Posts: 3,993
Aus
N
NickL Online content
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NickL  Online Content
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Joined: Jan 2014
Posts: 3,993
Aus
I bet that bike is really comfortable eh?


Lamas are bigger than frogs.
No room for sanity here.
Re: Where did the oil go? [Re: Hillbilly bike] #749318
09/16/18 12:51 am
09/16/18 12:51 am
Joined: Dec 2013
Posts: 4,294
ohio, usa
kevin roberts Offline
fefsa
kevin roberts  Offline
fefsa
Joined: Dec 2013
Posts: 4,294
ohio, usa
comfort is over-rated, at the time, certainly.

you only realize how much you hurt when you're back home in bed. and you forget before you get back on.


"Are bikes so nice as all that?" asked the mole, shyly...

"Nice? They're the only thing," said the Water Rat Solemnly, as he leaned forward on the handlebars. "Believe me, my young friend, there is nothing -- absolutely nothing -- half so much worth doing as simply messing about with bikes."
Re: Where did the oil go? [Re: Hillbilly bike] #749325
09/16/18 1:54 am
09/16/18 1:54 am
Joined: Jan 2014
Posts: 3,993
Aus
N
NickL Online content
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NickL  Online Content
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Joined: Jan 2014
Posts: 3,993
Aus
I used to spend all week recovering at work before the next weekend racing.
The first meeting of the season was the worst......................


Lamas are bigger than frogs.
No room for sanity here.
Re: Where did the oil go? [Re: Hillbilly bike] #749327
09/16/18 3:28 am
09/16/18 3:28 am
Joined: Jan 2014
Posts: 2,110
South cone
R
reverb Online content
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reverb  Online Content
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R
Joined: Jan 2014
Posts: 2,110
South cone
...I think a better title name is: "why the oil was down there?"

Re: Where did the oil go? [Re: Hillbilly bike] #749334
09/16/18 4:21 am
09/16/18 4:21 am
Joined: Jun 2018
Posts: 29
Island Park, New York, USA
G
Gaspare Offline
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Gaspare  Offline
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G
Joined: Jun 2018
Posts: 29
Island Park, New York, USA
yank off ALL your oil lines,,feed and return.. Buy a Morgo standard plunger oil pump. Every Triumph should have one anyway!.. Especially if an older motor. A new rebuild,,well it should have been on there.
Replace the oil pump,,care with the gasket. Drain sump. Drain frame. Drain primary..IF your using a oil cleaner or cooler don't for now..

Hook up your new lines primed with oil before the last clamp is tightened... Fill with proper amount of oil.. take spark plugs out of motor. Kick kick kick away until you get oil out of return. Once you do and see oil coming out of return... Plugs back in. Start bike and confirm everything is OK..

Re: Where did the oil go? [Re: Gaspare] #749345
09/16/18 7:26 am
09/16/18 7:26 am
Joined: Aug 2001
Posts: 7,549
scotland
triton thrasher Offline
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triton thrasher  Offline
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Joined: Aug 2001
Posts: 7,549
scotland
Originally Posted by Gaspare
Buy a Morgo standard plunger oil pump.


Only if there’s something wrong with your oil pump.


Quote
Kick kick kick away until you get oil out of return.


Silly behaviour. Ascertain that the feed side of the pump is pumping oil when the crankshaft turns, either when the timing cover is off, or by removing the pressure relief valve and looking into the hole. Then start the bike and see that the oil light goes out after a couple of seconds.

Testing the scavenge side before starting is a bit obsessive, but you can take the sump gauze/plug off and slip a clear tube over the scavenge pipe. See if it sucks oil out of a jar when you turn the crankshaft. Or put a cupful of oil into the crankcase. It should appear at the return in the oil tank after a few seconds running.


Amateur Loctite enthusiast.
Re: Where did the oil go? [Re: NickL] #749356
09/16/18 10:39 am
09/16/18 10:39 am
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Hillbilly bike Offline OP
BritBike Forum member
Hillbilly bike  Offline OP
BritBike Forum member
Joined: Oct 2012
Posts: 3,930
Running from demons in WNY
Originally Posted by NickL
I bet that bike is really comfortable eh?



Yeah, like riding a fence.......The only difference between the pump on the engine and a new Morgo pump is the money wasted on a new pump that wan't necessary..


I ride dinosaurs....

Moderated by  John Healy 


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