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It Doesn't Matter...To Me
Ironhead Lyrics


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The lyrics are frequently found in the comments by searching or by filtering for lyric videos
Most interesting comments from YouTube:

Mickey Duke

THIS is yet another GREAT.. PERFECT..
Instructional, "How To video". Put there out by,
LOWBROW CUSTOMS!

I do NOT know EVERYTHING, but..
THIS is a GREAT way for ANYONE and EVERYONE to learn the things they are looking to do
IN THEIR OWN GARAGE or SHOP
by THEIR OWN hand...
-BUILD AMERICAN Motorcycles
GREAT AGAIN! 👍

That includes MYSELF...
and all YOU "know it all's" out there!
There's GREAT PEOPLE over at
Lowbrow Customs..
This MAN.. his KNOWLEDGE and the way he DELIVERS it..
Speaks TRUTHFUL Confirmation to MY POINT!

I am so excited to CONTINUE
building MY BIKES with
Parts, Support and Confidence thru Lowbrow Customs and other
Great American Made part shops
heading into THE ROARING 20's!
Gain YOURSELF 2020 Vision and
Join ME out there!

Throw up a 🖕 when you see ME and all the OTHERS on
AMERICAN BUILT MOTORCYCLES
out on the road!
LET'S GO!
Peace & Love.. Ride Smart!
- Duke Mickey



Abstract Approach

@Paul Bahre AKA Crash the puke tube is in the cam case, he's talking about crankcase pressure. In older ironheads crankcase pressures is relieved (into the cam case) by a timed opening in a gear.

I guess the argument is that at high enough rpm's the crankcase can pressurized during and upstrokes (which is abnormal and doesn't occur at lower rpms, I guess a similar phenomenon to valve float, pressures can't equalize fast enough just as floating valves can't recoil fast enough)
If this is true, this pressure is stuck and will at best rob power and at worst crack cases.
Interesting, I do hope ours is OG (I enjoy having only 3 fluids [gas, 50 weight oil, and grease]
But, if you ride like a normal rider you don't go near redline and it doesn't matter.
(IF your wondering the air is supposedly pushed through the fill hole on primary cover that's why the gasket is so big )

I forget if my 69's primary was welded shut or not. It'll be a while before we're playing near redline anyways (5500 rpm if your wondering, you can go over in short bursts but around 7200 is when valves start floating)

EDIT for clarity.
Crack cases is in middle, cam case (or, officially timing cass) is on right and is where pressure is supposed to go and to which the oil pump is mounted (then it goes to oil slinger with the breather tube). Your primary case shouldn't normally exchange fluid with the others, but does lubricate transmission. however, if your check valve fails and your not welded up like you are, it is quite common to dump engine oil into the primary in an extreme wet sump condition (even happened on the factory floor, these bikes are meant to run often, I put a ball valve in my feed line for letting her sit overnight)



All comments from YouTube:

Klayton Von Kluge

This is a true blessing, to have references like this at hand, thank you Frank, Low Brow, and everyone else involved

Karl Sarpolis

Thanks for a very informative video. Restoring my '67 XLCH magneto Sportster which been apart since 2001. This will help me checking the motor and having everything in tune. Been using the HD factory service and parts manuals to rebuild the frame rear fork and front form so far. Great in depth coverage and tips here.

Billy S. Worthy

This has to be one of the best if not the best video on the Ironhead made. Thanks for sharing all this information, really clarifying the whole mystery of the Ironhead.

MO2VAedu

Thank you very much for taking the time to put out all of this information. Very helpful advice given in a common sense manner. Super cool of you guys to do this!

Patrick Kem

Frank,
You are a walking encyclopedia. Thank you for sharing that knowledge

RevAldea

Sir, you have stated the finest spoken words about the three major points or needs of any internal combustion engine that any mechanic must know as their process guide for any repair that may come at them with respect to any internal combustion engine and yet you pointed to the exact point for the HD Sportster motorcycle. I salute you, for such a good job that was done very well and truly correct!

William Sedlak

Pppppp

William Sedlak

Pp

jason martin

Thank you for posting these videos, they are very helpful. I would pay $500 to have a series on rebuilding an ironhead motor.

Connor Fairchild

Most informative video I have ever watched on YouTube. Needed help with my oil line routing on my 83 iron head, got my answer here. Great work.

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