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GT-40 Zero oil pressure. Ticking engine. Help!

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camron18 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: June-26-2020 at 6:29am
Okay I didn’t understand what bearings you were mentioning but after watching a couple plastigage videos I can do that
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: June-27-2020 at 3:17pm
The two bearings I pulled looked fine and very smooth. The crank looked perfect, and checking the tolerance with plastigage was perfect at .0015”. I pulled the furthest forward main bearing as well and it was still covered in oil and looked perfect. Torqued everything back down. New oil pump arrived today shaft should be here tomorrow. I will slap the pump and shaft on and throw it back in for the fourth!

My guess is that a small piece of oil pan gasket silicone got sucked into the pump? I was in a hurry last year putting the oil pan on...

Posts with gt-40 in the title get more responses..
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: June-30-2020 at 9:28am
Dropped the engine back in last night. Confirmed good oil pressure with a drill before hooking everything back up.

Went to try to start it up and when i turned the key i get nothing. No click no nothing. messed with the solenoid for a while. i have 12V at the starter but i didn't have anyone to turn the key for me while i checked the other wire to the starter.

Im going to scrub all the grounds and the battery terminals, and try a different battery, but if I had at least a "Click" i would have somewhere to start.

Does anyone have an suggestions on what to check with no click? would this suggest the ignition? or ground?

Thanks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: June-30-2020 at 9:31am
Is the transmission in (clean) neutral? Sounds like a NSS issue.
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camron18 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: June-30-2020 at 9:36am
I disconnected the trans cable and made sure it was in neutral. I will try to just jump the NSS to see if that is the issue.

Thanks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 63 Skier Quote  Post ReplyReply Direct Link To This Post Posted: June-30-2020 at 11:48am
I'm assuming with key on you got normal dash power, gas gauge reading, etc.? Doubt the battery is the problem, or the connections, since you were running right until you lost oil pressure and connections are new since you reinstalled the engine.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 5:14pm
This is getting very frustrating... I have 12.7 volts at the battery cables at the back of the engine as soon as I mount the ground to the bell housing I loose my 12.7v but the gages are on. Is there a ground wire that goes somewhere else? I have one for the battery cable one on the male side of the wiring harnesses one on the female side and one that I cut and wire nutted with the dui swap.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 5:19pm
I just got the starter to turn by jumping from the battery/big wire to the starter post to the little wire to the starter post
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 6:50pm
Cameron,
How about some better terminology instead of "big wire" and "little wire"

Here's some help:



Also, how clean are your battery posts/cable terminals? Are you using a battery terminal post wire brush type cleaner?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote SNobsessed Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 9:00pm
Have you checked the main breaker?
“Beer is proof that God loves us and wants us to be happy.”

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Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 9:24pm
Since this is a Hydrodyne that had the ProTec system originally and you converted it, the drawing above may or may not be very accurate for your boat.

Sounds like one of those situations where you need to be there in person to figure things out
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 10:11pm
It’s the breaker! I jumped the breaker and turned the key and the starter turned! Can I find a replacement for this breaker locally???
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 10:14pm
Seems like I could just find a 30 amp breaker and wire the a side to one end and the dash feed and alternator output to the other??
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 10:19pm
https://www.acehardware.com/departments/automotive-rv-and-marine/recreational-vehicle-parts-and-accessories/rv-electrical-equipment/85765?gclid=EAIaIQobChMIkuWftcCt6gIVhsDACh21ywvREAQYASABEgKxgPD_BwE&gclsrc=aw.ds

Would this work?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary S Quote  Post ReplyReply Direct Link To This Post Posted: July-01-2020 at 10:50pm
You talking about one of these? link
69 Mustang HM SS
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: July-02-2020 at 6:18am
Originally posted by camron18 camron18 wrote:

This is getting very frustrating... I have 12.7 volts at the battery cables at the back of the engine as soon as I mount the ground to the bell housing I loose my 12.7v but the gages are on. Is there a ground wire that goes somewhere else? I have one for the battery cable one on the male side of the wiring harnesses one on the female side and one that I cut and wire nutted with the dui swap.


If you have the main breaker open/tripped and have power to your gauges like you say, then you have some wiring issues somewhere.

With the engine OFF and the main breaker open you shouldn't have power to anything at the dash

The starter and the solenoid on the back of the engine would have power and like you mentioned you could jumper the wires at the solenoid and the starter would turn over, but you'd have no power to the coil to make the engine run. That would be your "big wire" and "little wire" you mentioned.

But.......if jumpering around the breaker gets you going, putting a new breaker in will work and you could figure out the other issues later since you probably had them before

Here's an original ProTec wiring diagram with a 50 amp main breaker so if you were to find a 40 or 50 amp breaker to replace yours with you should be good to go

The 30 amp you linked above would work. It may not be "marine rated" for spark protection though.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-02-2020 at 4:28pm
So now I’m trying to set the timing... as soon as I let off the key the boat dies... snore wiring issues... if someone wants to give me a call and chat about wiring I would love some help as I’m running out of patience... 616 634 7368

Maybe it’s the ignition switch???
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: July-02-2020 at 4:37pm
Originally posted by camron18 camron18 wrote:


Maybe it’s the ignition switch???

What's the VOM (volt Ohm meter) telling you? Volts to the coil when the switch is in the run position?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-02-2020 at 5:59pm
New ignition switch now in... sorry Pete. Same thing. I’ve reset the timing 10 times now with no change. It runs as long as I hold the key to start, even if I give it more gas, as soon as I let off the key it dies, I have 12v to the coil on the dui. With the key on.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tryathlete Quote  Post ReplyReply Direct Link To This Post Posted: July-02-2020 at 9:53pm
Originally posted by camron18 camron18 wrote:

New ignition switch now in... sorry Pete. Same thing. I’ve reset the timing 10 times now with no change. It runs as long as I hold the key to start, even if I give it more gas, as soon as I let off the key it dies, I have 12v to the coil on the dui. With the key on.


I seem to recall hearing about this issue that related to the safety lanyard. Maybe bypass it to rule it out.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camron18 Quote  Post ReplyReply Direct Link To This Post Posted: July-03-2020 at 12:13am
So I finally got the timing right and it started and ran with no problem, but then I went to shut it off and I couldn’t get it to stop! I ended up pulling the spark plug wires off quickly because I was almost out of water in my bucket! I finally found the battery cable at the solenoid was touching the “I” terminal that supply’s the voltage to the distributor. So after a bunch of messing around I was finally able to set the timing. I have no ticking and good oil pressure! We will see how the weekend goes! Big thanks to Ken and Rob for giving me a call and helping me get the the bottom of these wiring issues! It was one thing after another with this one but I think we are good to go.

Thanks guys!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tryathlete Quote  Post ReplyReply Direct Link To This Post Posted: July-03-2020 at 11:47am
Best possible ending. This is what makes CCF So unique.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrMcD Quote  Post ReplyReply Direct Link To This Post Posted: July-03-2020 at 11:54am
Nice work, Congratulations on your win! And no engine damage is huge.
Mark
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: July-03-2020 at 12:03pm


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jonny Quest Quote  Post ReplyReply Direct Link To This Post Posted: Today at 1:09am
Well done, lad. You dodged a HUGE bullet. Go out and buy a lottery ticket.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: Today at 5:31am
I want to say good job too, but I think I'll wait until Cam posts here that the boat is running well under load in the water
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