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Re: Cranking Compression versus Oil Control
[Re: dvw]
#2718026
11/21/19 10:14 AM
11/21/19 10:14 AM
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Joined: Jan 2003
Posts: 8,018 Tulsa OK
Bad340fish
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master
Joined: Jan 2003
Posts: 8,018
Tulsa OK
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I would imagine the valve seals are dry and crusty. I would buy a nice spring compressor and change the seals out before I looked further.
Then on my other shoulder there is the little guy saying ti could probably benefit from freshening the heads up and putting hardened seats in for the exhaust. Or Edelbrock sells nice mostly ready to go aluminum heads also lol.
68 Barracuda Formula S 340
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Re: Cranking Compression versus Oil Control
[Re: VITC_GTX]
#2718295
11/22/19 02:01 AM
11/22/19 02:01 AM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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The old rubber umbrella seals harden, crack and fall apart. It's pretty quick and easy to change them out. If you are going to keep the car, throw a fresh set of gaskets on the intake, put in a fresh double roller timing set, a windage tray and clean the oil pan while you're at it. You may need a fresh accelerator pump plunger if it sat for a long time. Add a phenolic spacer under the carb and insulate the fuel lines near the motor.
Then recurve the distributor so you can run a bit more initial with out going over 34 -36 total. Make sure you hook the vacuum up to manifold vacuum, so it retards when the throttle is opened..
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Cranking Compression versus Oil Control
[Re: jbc426]
#2718310
11/22/19 08:58 AM
11/22/19 08:58 AM
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Joined: May 2019
Posts: 6,220 nowhere
Sniper
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master
Joined: May 2019
Posts: 6,220
nowhere
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Make sure you hook the vacuum up to manifold vacuum, so it retards when the throttle is opened..
what do you think ported vacuum does when the throttle is opened?
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