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Author Topic: Monsterlover rejoins the fold  (Read 43861 times)
Monsterlover
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« Reply #150 on: September 15, 2020, 02:44:12 PM »
I could totally make a spark plug hose adapter.

Way to set the hook.
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« Reply #151 on: September 15, 2020, 03:18:15 PM »
Quote from: Monsterlover on September 15, 2020, 02:44:12 PM
I could totally make a spark plug hose adapter.

Way to set the hook.

 Grin

I got the leakdown gauge back when I was running Bonneville and El Mirage.
Said running also included wrenching into the wee hours.
The QR fitting that connects to the spark plug hole was deliberately chosen different from the shop air lines, and only mated to the leakdown, which had a regulator.
This was chosen after inadvertently hooking the motor directly to 150psi shop air.
It's the kind of thing that happens right after you spend 20 minutes looking for that wrench you just had in your hand.
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« Reply #152 on: September 15, 2020, 03:39:50 PM »
I hadn't thought about pressure. What's a decent number to put into these engines?
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"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**
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« Reply #153 on: September 15, 2020, 06:55:37 PM »
I set the regulator to 10 psi or so.

It'll hold the valves on the seat, and you can push with your finger to pop em off the seat.
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« Reply #154 on: September 15, 2020, 07:07:34 PM »
If you can pop them of the seat with your finger that seems like not enough air? 

I don't want to have to pretend I'm Stu and fish for valves
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« Reply #155 on: September 15, 2020, 08:38:25 PM »
Quote from: Monsterlover on September 15, 2020, 07:07:34 PM
If you can pop them of the seat with your finger that seems like not enough air? 

I don't want to have to pretend I'm Stu and fish for valves

Piston is always at TDC on the cylinder I'm working on, to provide the mechanical stop.
10psi is enough to keep the valves on the seats for messing with closer shims and half rings.
But it's not enough to turn the crank.
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« Reply #156 on: September 16, 2020, 03:40:49 AM »
TDC as a back stop for sure. I use forceps,  makes me feel doctorly. Grin
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« Reply #157 on: September 16, 2020, 06:43:32 AM »
Quote from: Monsterlover on September 15, 2020, 07:07:34 PM
I don't want to have to pretend I'm Stu and fish for valves bourbon

Fixed it to reflect what I do in my spare time these days.
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« Reply #158 on: September 17, 2020, 05:02:46 PM »
More work on the fuel tank tonight. Finally got fuel hose rated for submersion in fuel and got the pump, filter and sender back in.

Also found some rust under the tank that I suspect was battery acid. Roughed that up and shot some Rustough on it to seal it up.


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I know it's not Ducpainter quality but nobody will ever see it and I just needed it sealed up.


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"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**
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« Reply #159 on: September 18, 2020, 04:49:18 AM »
The tank is definitely looking much gooder inside now.  waytogo
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Monsterlover
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« Reply #160 on: September 20, 2020, 08:47:13 AM »
Ok. Valves.

Here's where I'm at after swapping in some new shims and sanding endlessly on one of them.

Front cyl-
Intake open .004
Intake close .002
Exhaust open .0045
Exhaust close .0015

Rear cyl-
Intake open .005
Intake close .003
Exhaust open .005
Exhaust close .003

I wouldn't mind another .001 on some of those but I'm wondering if it even matters with how things sit.

I can rotate all the closers with my fingers but there's drag on them all. Unlike the openers that freewheel. Is that right?

I did this with the belts off and the clips off the opener rockers.  I checked closer clearance by pressing on the closet rocker, measuring gap at the opener and subtracting the opener clearance.

Would you adjust further?
« Last Edit: September 20, 2020, 08:48:53 AM by Monsterlover » Logged
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**
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« Reply #161 on: September 20, 2020, 09:31:49 AM »
I'd adjust further but that hinges strongly on my having a big box'O'shims.

Closers can get wedged to the valve and half rings so that it spins the valve too, and that's draggy.

Cams should rotate freely no drag until it's opening a valve.
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Monsterlover
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« Reply #162 on: September 20, 2020, 09:35:45 AM »
Quote from: Speeddog on September 20, 2020, 09:31:49 AM
I'd adjust further but that hinges strongly on my having a big box'O'shims.

Closers can get wedged to the valve and half rings so that it spins the valve too, and that's draggy.

Cams should rotate freely no drag until it's opening a valve.

Cams spin with no drag.

What would you adjust?  I have an ems kit here.
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« Reply #163 on: September 20, 2020, 01:19:40 PM »
Quote from: Monsterlover on September 20, 2020, 09:35:45 AM
Cams spin with no drag.

What would you adjust?  I have an ems kit here.
I'd try to get closers closer to 0.
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Monsterlover
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« Reply #164 on: September 20, 2020, 01:54:10 PM »
Quote from: ducpainter on September 20, 2020, 01:19:40 PM
I'd try to get closers closer to 0.

Would .000 be an issue as things heat up?  Shouldn't there be a little something for expansion?
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"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**
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