Opinions: Oil Leak on Front Jug/Head--should I just replace the base Gasket too?

Energy One

Sven

Well-Known Member
Bet my spelling is worse. No, I understand the principal, but I want a fluid flow, no excess air pressure inside the engine, especially at the bottom end. If we want top end down flow, we can't get oil up to the top end with the sump oil not about to move you take that plug out and spray at the crank wheel.

If I had oil and proper crank pressure up the top end, I can see a fast oil leak before your compressor fills with air and I come back around the block, where are we at I caught both the oil and air, you only caught air + induced damage?

You can't sell me on a ride vs. seal damage and me flooding the top end with oil not air. The weak analogy is I am looking for an oil leak, not an air leak. I hear another variable thrown in causing more leaks. No, I ride the leak out, not start blowing in another variable = No extra leak someplace else.

Signed,


:2thumbs: Good luck on the choices presented.
 

john sachs

Well-Known Member
You just don't get it. :rolleyes:
Engine vents with positive pressure out the breathers. I've used this method for 25 years to find cracks, leaks, and loose timkin bearing inserts in EVO cases, and engines, and never blew a seal out.
What you will see normally are bubbles or a light misting where the leak is.
Usually your compressor,etc. has a pressure regulator that you can set for lower air pressure, and you DON'T blow air in the engine for 5 minutes.
Bottom line if this PROVEN method scares you then don't wrap the air gun with a rag. :eek:
Oh, the riding around method to find the leak is confusing because the air blowing on the engine/bike spreads the oil all over.
That's all I'll say about this.
John
 
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Sven

Well-Known Member
You just don't get it.
:rolleyes:
No, you do not listen to turtle it goes right over your head.
Usually your compressor,etc. has a pressure regulator that you can set for lower air pressure, and you DON'T blow air in the engine for 5 minutes.
Bottom line if this PROVEN method scares you then don't wrap the air gun with a rag. :eek:
Get it now? no offense to the ocean creatures but you are talking to squids that walk right up with no reg and a half hour looking for it is like giving matches and TNT to a kid and say, 'go figure it out.'

Oh, the riding around method to find the leak is confusing because the air blowing on the engine...
No offense to the so called mechanics stepping a foot on my red rug, but if you can't fine a leak riding a bike around the block and it's confusing, need I say more. :confused:

:cheers: And who said I didn't get it you come back now with the 'don't do this and don't do that and I did not bring in any caution. FuckingA you didn't get it.

Signed,

I sure do get it or I would not have brought in pepee lee pew.
 

chacha

Chaff Your EHC!!
Calendar Participant
I'll take Sachs's advice any day of the week -- especially over someone I've blocked for failure to make any sense in his attempts to use English.

Thanks John.
 

pknowles

RETIRED
I'll take Sachs's advice any day of the week -- especially over someone I've blocked for failure to make any sense in his attempts to use English.

Thanks John.
Get all you gaskets together and come on down to Suffolk this weekend(long) and we can pull the jug and replace the gaskets. probably want at least a new set of rings for that puppy. Always wanted to work on a 107.:up:
 

Sven

Well-Known Member
I'll take Sachs's advice any day of the week -- especially over someone I've blocked for failure to make any sense in his attempts to use English.

Thanks John.
That's why I look at this as Sach and I jump over the pit wall in our own pits. For argument sake the bike is clean. Pit call scenario goes:

X. Take a lap and come back in = 1:20 is a lap. Oh here it is, pushrod oring popped out, back in she goes, taps the rider to leave = 2:49 total time in the pits w/lap.
Y. Take a run over the wall, go back to the garage, roll wire (out) for the compressor, find all the hoses and connections and the time back over the wall is all about time = 2:49 and we are not plugged in yet.


Z = Who's Your Flat-Rate mechanic in the pits [attempting to] save you the bucks out the wallet or placing product up front? Next issue. :whoop:


No offense, but if I were to show a sponsor looking for a pit crew to win in the pits and being on that podium, fukingA you don't see it like the turtle. :roll:
 

chacha

Chaff Your EHC!!
Calendar Participant
PK -- thanks for the offer. Mighty kind of ya. I'm rolling out to the Easyrider Rodeo in Ohio this weekend. Probably be a couple of weeks before I get the parts and tackle the teardown.
 

chacha

Chaff Your EHC!!
Calendar Participant
Resolution!

First - John Sachs is a genius. I used his air pressure method to isolate the leak.

First I cleaned up the motor casing, jugs and rockers real good....




Then I set the compressor to 60 psi and used a hose in the timing plug hole...


Looked all over the motor and only found this one leak! Easy fix (after I pull the tank!). Many thanks to John for the idea. Works great!
 

Sven

Well-Known Member
You may just need to tighten the rocker box.
Good idea, Sachs.
Good call, Dawg (and others that said rocker box.

Still, like I said... You could have started the bike up and that would have happened just as quick. Time is money.
 

BadDawg Bill

Well-Known Member
Quote:
Originally Posted by BadDawg Bill View Post
You may just need to tighten the rocker box.[/QUOTE]


Good idea, Sachs.
Good call, Dawg (and others that said rocker box.

Still, like I said... You could have started the bike up and that would have happened just as quick. Time is money.
Thanks Sven. Sometimes "KISS" works. I'm glad he found the problem.
 

pknowles

RETIRED
I guess this means I'm gonna have to wait to get a chance to see the insides of one of those 107's. Glad it was a easy fix.:up:
 

Mighty-Mo

New Member
Here's some pics. Got a nasty oil leak going--clearly coming from the rockerbox on the front jug (pic of that didn't come out). First noticed that I was getting some oil on the front exhaust wrap. It's now to the point that riding it hard (80 MPH for an hour) and I get a sheen of oil all over things (see pictures).
I'm thinking the front base gasket may be blown as well - thoughts?

I've pulled rocker boxes but never pulled a jug before.
Thanks.

Oil collecting at front left motor mount.


oil on carb and nose cone after riding hard.



Pictures of the front base gasket


Hello, I recently had a front rocker box leak in my 2008 pitbull, mechanic changed the rocker box gasket but it started gushing oil thru the push rods. Later they found out the the original gasket that came with the bike is a Harley gasket (that gasket missing a hole, so the motor didn't breath well. Now they got the S&S gasket and changing it. I will get to in few days!!
 

BadDawg Bill

Well-Known Member
When I bought my first 96 CI S&S it poured oil out of every hole in it. Guys started calling me slick Willey and made me ride last in line. We tried everything to stop the leaks.

Finally I called S&S and some "dude" asked for the serial #. Wow he said... We broke a drill bit off in the oil return on a motor around the time yours was made...

They sent me a "kit" to re drill the hole but the bit was still stuck in the hole and they wound up sending me new cases and a check to have the motor rebuilt.

Talk about an oil leaker!
 

Sven

Well-Known Member
Guys started calling me slick Willey... Wow he said... We broke a drill bit off in the oil return... they wound up sending me new cases and a check...
Funny and great ending to a story. Gives S&S some quality control on their engines. Say S, what S? I broke a drill in the case, how about I let it pass, the oil flows down the bit. Say S, let me write that down. S fucks up case # S-Leak123-S. Say S, I got a guy on the phone name Slip WillHe, and they put him to the front of the [oil] line, he needs cam cover cones. He says he wants a commission besides the case and ch... S says to go take a flying S!
 
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