DYNOTHON - 2021 - the Landracing.com Fundraiser. We're BAAAACK!

[Milwaukee Midget]

Sorry for these delays - It's as though I'm tripping on the risers heading up a downward escalator.

Okay - new coil packs in place.  Waiting to get some help here on the dyno, I'll check sequence and try to fire it up again.

thumbnail_20210610_142647 by Chris Conrad, on Flickr

"You're doing something nobody's ever done before - don't be so hard on yourself."

[Milwaukee Midget]

K - O - KAY

Finally got a smooth idle and a fuel map that doesn't look like the escarpments of the Badlands.

Not done yet - still more to do, and plenty of power sitting on the table, but this is DEFINATELY the fun part.

thumbnail_20210610_162951 by Chris Conrad, on Flickr

Post more when I get back to Beerhaven.

[Stan Back]

Well, the only thing I can see is that the numbers at about 5280 are about equal.  I guess everything's hooked up rite.  Only double digits, so you may owe some of us some money.

A-B-C-D-E-F-G.  Got it.  Still can work it in my head.  Thanking Hilborn and Mallory as I slip into the past.

Stan

[fordboy628]

midget,


As per my K build notebook,   Aka:  Dunning-Kruger Resource Service

Bore:     75.5 mm    (2.973")
Stroke:  55.5 mm    (2.185")

Results in:   993.88 cc displacement

I added the US based inch sizing for those who do NOT speak Metric: SuperFlow, etc, among others.   Included, but also not limited to:  Goldfish/Vikingboy   Take your pick.


Where is timing now?   Suspect it needs more than what is in it.     Although, need to get the fuel curve sorted first.

 

Mr. (formerly Captain) Obvious

[Milwaukee Midget]

Not done yet, but what was accomplished today was this -

A. Installed a completely new set of coils and reconfigured our ignition parameters
2. Corrected a cam sensor parameter error
d. Actually tweeked it so it would idle - imagine that . . ., AND
7. Made some preliminary pulls that brought us up to almost the power of the Grenade.

Considering where we were on Tuesday, today was a relief.

This thing REALLY wants to rev.

More to come - Mark will be on deck Friday morning.

fuelmap by Chris Conrad, on Flickr

d by Chris Conrad, on Flickr

[salt27]

Fifty cents a horse here.

OK, I'll match James, fifty cents a horse here too.

Wait, are those Ausie cents or USofA cents?   

[floydjer]

Have to support SJF...I'm in for $1 per h.p.

[fordboy628]

OK, panic over, found my Milwaukee Midget BMC/Rover Build shop notebook.

Has the "enlightenment" you seek.

Funny thing . . . . turned up in the last place I looked! ! !

 

[Milwaukee Midget]

Earlier, I commented that i felt as though I was "tripping on the risers heading up a downward escalator."

Well, I definitely skinned my shins on it this morning.

I was running a compression check. I had the spark plugs out in order to save the battery and wear-n-tear on the starter.

Now normally when I have the plugs out, I put the boots back in place in order to prevent anything from falling into the cylinders.

I started with the "1" hole, and then jumped to the "4", the "3" and lastly the "2".

I had nothing in my hand except the compression checker. 

compcheck by Chris Conrad

Note the arrow pointing to the plastic/rubber button extender for the Schrader valve. After checking # "2", I went to relieve the pressure and noticed that it was missing.

gauge by Chris Conrad

Nope - wasn't on the floor - wasn't in the catch basin under the motor - wasn't inconveniently lodged in the nest of wires that are the EFI/Ignition bundles.

No - it was wedged between the exhaust valve and the seat of the 2nd exhaust valve in the "1" hole - further compressed and wedged by the piston crashing into it.

pos by Chris Conrad

With the artistry and acumen of a dentist and an accompanying dental hygienist, Mark was able to fish it out through the exhaust while I was able to blow compressed air through the sparkplug hole.

A cylinder that was giving us ~200 psi was now barely giving us 150. A double check of the lash indicated a bent valve.

Fortunately, when Mark did the flow work on the head, lo these many moons ago, he kept a spare set of valves in reserve.

head by Chris Conrad

The head is off.

There's simply nobody to blame but myself. I KNOW BETTER than to leave holes open like that. I got in a hurry to start tweaking up the dyno numbers, and that turned around and bit me solidly in the toush.

I've always shared the good, the bad, and the ugly on this build. Both successes and problems have been witnessed here, and being a human project, one should accept human-related downfalls.

I've usually been able to forgive myself on the stupid stuff - but this one has just about taken it all out of me. 

Let's see how it comes back together. Can't do anything until Monday, anyway. I'll keep everyone posted.

 

[manta22]

Think positive, Chris. At least you found it.

[floydjer]

This delay gives me more time to cash in my empties to cover the massive check Slim will be receiving

[wheelrdealer]

Chris, my car has been stored for years. A few years ago I decided I should spray the cylinders with some WD40 and hand turn over the motor. I got to #7 and when  I stuck the red extension tube in the spark plug hole I pressed the spray nozzle and the red WD40 tube shot right in the # 7 cylinder. I hate it when I create my own problems. It happens.

BR

[Milwaukee Midget]

Bill - that's PRECISELY my frustration.

I'm trying so hard to be smart about this - checking the compression to get some insight as to how the build is holding together is an example - and then carelessly trashing a valve in pursuit of doing things the smart way.

I entertained the thought of firing it up and hoping the valve - an exhaust valve - might get hot enough and reseat itself. But I also remember reading in Vizard's book on the A-Series about "thermal distortion" of the valve seat on exhaust valves. I know people who would go that route, and truthfully, if this were an LS motor or a SBF - something I could recreate through the Summit catalogue - I might have done that.

But I also know that a leaky exhaust valve can burn the seat. The K head is too fragile, too scarce and too far along, and there's too much invested and involved to take that chance.

The up-side is that we were able to check out the bores - they look great - and confirm the copper headgasket sealing.

But it sure seems like I dropped a duce in the punch bowl . . .

[Koncretekid]

Your luck sounds like my luck working on my bikes.  Just had to take the head off my Triumph (road bike) for the third time this spring due to a valve sticking in a new guide - - insufficient clearance!

So I've decided to pledge $1 per horsepower to the cause, Canadian dollars, of course!

Better luck this time!

Tom

[Speed Limit 1000]

This delay gives me more time to cash in my empties to cover the massive check Slim will be receiving

Where can I cash in my milk cartons?