Victoria! Zeke's CB175 Build

Xr250 oil filter
 

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+ damaged cb175 oil filter cover and 10 min on the lathe
 

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teazer said:
That little spring loaded part in the outer cover is critical. If it doesn't "seal" reasonably well against the rotor, oil leaks out and starves the top end. We lost a top end at Road America with that.

And of course you are using the larger bore CB200 pump.

What I did was to drill in at the two spots along the front face of that oil gallery to take pipe fittings and then drilled and plugged it between the two.

The little sliding piece is the restriction that ends up dumping oil back into case instead of lubing top end. Open up the gap so oil gets back into system easier. (info will be in various CB360 posts)
You can also get a new cover turned up with banjo bolts for cooler. Better than drilling a rather thin section.
No idea if a CB350 cover will fit but they use the same principle. I haven't made a new oil cover with take off for oil lines for 10+ yrs (only ever done CB350 'race' motors)
 
simo said:
I take them off for photos, its to add to the sense of drama...
I knew that I would get the real Kiwi ingenuity photos when I said I bought something and called it KIwi! Lol!


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Lol SURrrre, have you looked at your bikes lately?

Heres a dumb question. If youre running a turbo / injection set up can you reverse the head so that the exhaust is faceing the rear and the turbo can sit where stock filters would be and rid yourself of the kludge of plumbing
Also would it make sense to track down a CD/CA( that seems better read backward) head since its a single intake.
 
simo said:
Lol SURrrre, have you looked at your bikes lately?

Heres a dumb question. If youre running a turbo / injection set up can you reverse the head so that the exhaust is faceing the rear and the turbo can sit where stock filters would be and rid yourself of the kludge of plumbing
Also would it make sense to track down a CD/CA( that seems better read backward) head since its a single intake.
why go for one turbo when you can have two? ;)


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I have these thoughts when building a bike...if this breaks can I get these parts at the nearest Home Depot to bonneville and will it be in stock?


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What is the oil pressure coming out of that pump maybe 5 psi?


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simo said:
Lol SURrrre, have you looked at your bikes lately?

Heres a dumb question. If youre running a turbo / injection set up can you reverse the head so that the exhaust is faceing the rear and the turbo can sit where stock filters would be and rid yourself of the kludge of plumbing
Also would it make sense to track down a CD/CA( that seems better read backward) head since its a single intake.

You're still going to be plumbing. Tubes run from the turbo to the intake regardless of which direction the head is facing.
 
Yeah i was just wonderinging if you could keep it cleaner
Then i found this on line, its a cb 200 engine turbo project (never finished from what i gather) but a nice 2-1 setup to drive the turbo
 

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Yup. The CL pipes are good option.

If possible, a custom manifold (as small as possible) is also an option.
 
Yes we have an extra set of cl pipes! However I feel these are too nice to sacrifice.

Now back to the oil cooler project for a cb175. Here is the plan. Picked up 8' of 5/16" transmission line. 2-1/8" MIPS by 5/16" spiral barb brass fittings. 1-1/8 IPS tap and forgot to get an 11/32" drill bit for the tap. As Teazer suggested plan on tapping the center to plug with a bolt.
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hah now all you need is a couple mini valves so quick winter warmup etc
here is a fun facto tech wise the principle of a tapred pipe thread is that the threrads if fomed correctly seal 100% perfectly with nothing to aid in the seal.a taperd pipe threadform is the same angls of peaks and valleys as a screw thread but it is one of the very few thread-forms that is designed to be full form dead sharp both male and female and the matching tapers allow the perfect fit zero gaps once tight a true full contact interference fitting thread
ofcourse a bolt or screw thread is not sharp in design,it has flats for many practical reasons could you imagine the threads seizing all the time and they would need to be always dead clean,besides there is no strength gained with sharp threads ;)
 
xb33bsa said:
hah now all you need is a couple mini valves so quick winter warmup etc
here is a fun facto tech wise the principle of a tapred pipe thread is that the threrads if fomed correctly seal 100% perfectly with nothing to aid in the seal.a taperd pipe threadform is the same angls of peaks and valleys as a screw thread but it is one of the very few thread-forms that is designed to be full form dead sharp both male and female and the matching tapers allow the perfect fit zero gaps once tight a true full contact interference fitting thread
ofcourse a bolt or screw thread is not sharp in design,it has flats for many practical reasons could you imagine the threads seizing all the time and they would need to be always dead clean,besides there is no strength gained with sharp threads ;)
once again it is a post like this xb33bsa that shows how awesome DTT is! How much tinkering did someone do to get to that understanding? Where did you learn that factoid? Who was the person that said, "I will call it iron pipe sizing?"

So much of our understanding is because we are stumbling upon things. Thanks for sharing that!


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Texasstar said:
once again it is a post like this xb33bsa that shows how awesome DTT is! How much tinkering did someone do to get to that understanding? Where did you learn that factoid? Who was the person that said, "I will call it iron pipe sizing?"

So much of our understanding is because we are stumbling upon things. Thanks for sharing that!


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its in the machinist's manual and i was lucky to work with some sharp employers outta high school and i believe this was pointed out and splained a bit the first time i was asked to single point thread a bunch of stuff in taperd pipe thread,of course i nodded and said yeah yeah then when they went back to the office i looked at the book ,had no choice....good sized stuff like 4" +we were doing a lotta ag pump work
 
Sean at RoccitycAfe is a great guy and is giving the Italian(Capellini) a run for his money with style http://www.roccitycafe.com/images/cb350-manx-oil-cooler.jpg
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