Author Topic: Fixer UPer  (Read 2139 times)

mr.mindless

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Fixer UPer
« on: May 29, 2020, 03:27:21 PM »
Quote from: etk300ex
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mr.mindless

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Re: Fixer UPer
« Reply #1 on: May 29, 2020, 05:56:54 PM »
If I have ~1/2” npt lines for coolant, it can be done tonight. If not, can still test fire.
Quote from: etk300ex
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M4wdFab

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Re: Fixer UPer
« Reply #2 on: May 29, 2020, 10:26:08 PM »
win?

mr.mindless

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Re: Fixer UPer
« Reply #3 on: May 30, 2020, 11:57:43 AM »
Loss :(

Spark looks weak and I left the key on. I'm betting I fried the coil. Battery was not flat though, so it's pretty damn good.

I have a spare coil somewhere. Got it for that pinto motor to stand test it and never did. reasonably sure I didn't send it with the engine.
Quote from: etk300ex
oh lord!

mr.mindless

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Re: Fixer UPer
« Reply #4 on: May 30, 2020, 07:54:48 PM »
Weak spark seems likely to be the issue.

Assuming timing is good etc. all ignition parts are new. Cap rotor condenser wires plug and I think coil. Perhaps related. One plug wire cape apart. All were poor fits. I don’t have other plug wires with proper connectors. Coil and cap are female, wires are male. Had to spread every end of every wire to fit snug.

Firing order and timing unconfirmed.

Dug out my spare coil. It makes no spark at all. Bag had some oil in it.

Haven’t come across my multimeters yet. Might be in the racing toolbox in joe. I’ve at least looked at almost everything.

I may need to throw new coil and condenser at it?

Weak shitty spark is definitely _a_ problem. Just don’t know if it’s _the_ problem.
Quote from: etk300ex
oh lord!

mr.mindless

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Re: Fixer UPer
« Reply #5 on: May 30, 2020, 09:14:34 PM »
Wires were on the dizzy in the wrong order, haven’t found the timing marks yet to see if they’re in the right positions.
Quote from: etk300ex
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mr.mindless

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Re: Fixer UPer
« Reply #6 on: May 31, 2020, 04:11:49 PM »
Spare coil gives spark after realizing the truck is positive ground.

But still no fire.

Plug wires fixed. Position and order confirmed.

Didn’t put a gauge on it but all holes have compression.

Not sure what’s missing unless it’s still weak spark. I found a little tang of plastic in the cap that could have been screwing up rotor to coil but now I don’t know.

Guess I should get some starting fluid. Maybe the new vaporizer isn’t working right. It was a warehouse deal from amazon and had clearly been installed before.
Quote from: etk300ex
oh lord!

M4wdFab

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Re: Fixer UPer
« Reply #7 on: May 31, 2020, 06:49:48 PM »
have a propane torch?  stick it in the hole lol

mr.mindless

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Fixer UPer
« Reply #8 on: May 31, 2020, 09:57:28 PM »
Haven’t seen my torch yet.

Swapped coils with the mowzer. Forklift coil is shit, tractor runs like a wasted cycle motor. Hits barely enough to idle.

Was looking for a choke, trying to use my hand and feeling no suction.  found a shutoff valve between the mixer and intake mani that was closed.

It has caught several times but not actually run.

Dist doesn’t want to twist in its hole. Propane all frozen up from lack of coolant flow.

I think it may run tomorrow after it thaws
« Last Edit: May 31, 2020, 11:11:59 PM by mr.mindless »
Quote from: etk300ex
oh lord!

mr.mindless

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Re: Fixer UPer
« Reply #9 on: June 01, 2020, 08:05:16 AM »
Didn’t fire with zero effort this morning. Wishing I got a vaporizer with a purge button.
Quote from: etk300ex
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M4wdFab

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Re: Fixer UPer
« Reply #10 on: June 01, 2020, 09:57:26 AM »
hold throttle to the floor, same   its MAP based for fuel delivery. 



i didnt think of it when you mentioned choke.  but i believe choking is the opposite of the effect you want here.   you want WOT manfold (low vacuum) to dump more fuel....

mr.mindless

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Re: Fixer UPer
« Reply #11 on: June 01, 2020, 10:05:02 AM »
when I had it catching last night, it was at WOT. don't recall my hand-choke position.
I wasn't thinking of the reduction in pressure differential (wrong words, but catch my drift) that choking makes.
« Last Edit: June 01, 2020, 10:08:07 AM by mr.mindless »
Quote from: etk300ex
oh lord!

M

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Re: Fixer UPer
« Reply #12 on: June 01, 2020, 10:28:08 AM »
hold throttle to the floor, same   its MAP based for fuel delivery. 



i didnt think of it when you mentioned choke.  but i believe choking is the opposite of the effect you want here.   you want WOT manfold (low vacuum) to dump more fuel....

Makes sense.  My forklift starts best when I have my leadfoot firmly on the throttle.   If I don't do that, it'll be cranking and cranking until it finally starts.

mr.mindless

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Re: Fixer UPer
« Reply #13 on: June 01, 2020, 02:14:59 PM »
it catches when I take my hand choke away and that pressure differential in the intake is greatest and it gets richest.

There's a pressure sample port on the vaporizer. I'll look into that.

I know gas is making it all the way to the mixer since I've seen the line freeze up and the mixer freeze up. I wonder if there's a richness adjustment on the mixer or if I'm just fighting timing and weak spark (for unknown reasons - spark looks good at the points. could be shit plug wires)
Quote from: etk300ex
oh lord!

mr.mindless

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Re: Fixer UPer
« Reply #14 on: June 01, 2020, 04:01:09 PM »
uncovered a marking on the carburator, J&S.
Found online a description that the J&S and Impco parts are NOT interchangable. They work on different principles of regulation: the Impco regulator wants some vacuum from the carb, and the J&S supplies regulated gas to the carb.

https://www.forkliftaction.com/forum/thread.aspx?trid=13343

I have something more to search on now for trying to find the pressure daiphragm, but the vaporizor I just put on isn't useful at all with this carb. Fuck.
Quote from: etk300ex
oh lord!