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Re: Trick Flow 240 oiling question?-Cyl#3 Dead
[Re: 451Mopar]
#2666260
06/15/19 06:07 PM
06/15/19 06:07 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
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The hole that connects the two sides of the leak down tester is pretty small....... so it doesn’t take much of a leak to not be able to build pressure.
If the leak is bigger than that orifice in the gauge...... you’ll get nada.
That being said, the only way I can see it being a ring issue is if the comp rings are either broken, or........stuck/seized into the ring grooves.
Be interesting to see what you find.
Did you happen to do a compression test on that cyl as well?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Trick Flow 240 oiling question?-Cyl#3 Dead
[Re: fast68plymouth]
#2666894
06/17/19 01:22 PM
06/17/19 01:22 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
OP
master
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OP
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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I almost was expecting a hole in the piston it is leaking so bad. but the top of the piston looks fine.
I had the leakdown tester hooked up with pressure going into the cylinder. rockers off, so valves were closed, and even cranking the engine over, I only got a bit of pressure, maybe 20 psi if I was lucky, and it bled off right away.
I ordered some 1" thick plexiglass, that I am going to drill for the head bolt pattern and then drill tap the center for a 14mm sparkplug hole to hook up the leakdown tester. That way I can pressure check both the block and head independently, and also see inside.
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Re: Trick Flow 240 oiling question?-Cyl#3 Dead
[Re: 451Mopar]
#2666925
06/17/19 02:22 PM
06/17/19 02:22 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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I almost was expecting a hole in the piston it is leaking so bad. but the top of the piston looks fine.
I had the leakdown tester hooked up with pressure going into the cylinder. rockers off, so valves were closed, and even cranking the engine over, I only got a bit of pressure, maybe 20 psi if I was lucky, and it bled off right away.
I ordered some 1" thick plexiglass, that I am going to drill for the head bolt pattern and then drill tap the center for a 14mm sparkplug hole to hook up the leakdown tester. That way I can pressure check both the block and head independently, and also see inside.
I did that exact think with plexiglass
Last edited by Clanton; 06/17/19 02:40 PM.
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Re: Trick Flow 240 oiling question?-Cyl#3 Dead
[Re: Clanton]
#2667271
06/18/19 04:11 PM
06/18/19 04:11 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
OP
master
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OP
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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I almost was expecting a hole in the piston it is leaking so bad. but the top of the piston looks fine.
I had the leakdown tester hooked up with pressure going into the cylinder. rockers off, so valves were closed, and even cranking the engine over, I only got a bit of pressure, maybe 20 psi if I was lucky, and it bled off right away.
I ordered some 1" thick plexiglass, that I am going to drill for the head bolt pattern and then drill tap the center for a 14mm sparkplug hole to hook up the leakdown tester. That way I can pressure check both the block and head independently, and also see inside.
I did that exact think with plexiglass Nice! I was just going to make a small one for one cylinder, but that's better, can pressure check the cooling too.
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Re: Trick Flow 240 oiling question?-Cyl#3 Dead
[Re: Cab_Burge]
#2667387
06/18/19 09:39 PM
06/18/19 09:39 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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For sure post what it ends up being (this is a strange one!) but we're (likely) gonna laugh when we find out how simple it turns out to be.
live every 24 hour block of time like it's your last day on earth
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Re: Issue Found. No compression rings?
[Re: 451Mopar]
#2668878
06/22/19 11:27 PM
06/22/19 11:27 PM
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Joined: Aug 2003
Posts: 43,127
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
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Last edited by Cab_Burge; 06/22/19 11:28 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Issue Found. No compression rings?
[Re: Clanton]
#2668993
06/23/19 11:02 AM
06/23/19 11:02 AM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
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I gotta say....... that’s the first time I’ve heard of that one.
I’ve heard of upside down rings, rings in wrong grooves, wrong thickness rings, rings with almost zero gap........ but never no rings.
I don’t assemble a motor while anyone is around........ way too easy to get distracted when you’re yapping away(at least for me).
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Issue Found. No compression rings?
[Re: fast68plymouth]
#2669172
06/23/19 10:25 PM
06/23/19 10:25 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Now we know where the blowby was coming from.
live every 24 hour block of time like it's your last day on earth
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Re: Issue Found. No compression rings?
[Re: RapidRobert]
#2672575
07/01/19 02:35 PM
07/01/19 02:35 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
OP
master
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OP
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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My bad, the 2nd rings were in up-side-down too  Have to pull all the pistons and flip the 2nd rings around. Looked at the taper edge of the inner ring, and instructions said that goes up (for the top ring..) If I looked at the instructions closer, goes to bottom for second ring.
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