North American Turbocoupe Organization



Melling HiV Oil Pump- will it clear OEM pan?
ridgeback Offline
Member
#1
I was going to replace my oil pump to a Hi-Volume Melling but noticed that they have a bigger gear which will cause the pump to reach further down in the pan. I am also reusing the original oil pickup tube,screen and pan and need to know if this will all still fit without any clearance issues or additional mods???

I saw some posts and profiles showing Hi- Volume pump installs but nothing about it being a problem free upgrade.

Ron
Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
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boosted chicken Offline
Senior Member
#2
Why are you going to a HV pump? They are not necessary and can put excess stress on the aux/dizzy gears.
88 TC#1 Boport stg 3 alum dport head, PT6466, Boport header, CP pistons, Crower rods, MS2xtra
88 TC#2 drag car project(someday)
88 TC#3 parts car (just needed the header panel...bought the whole car, lol)
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Pete D Offline
Administrator
#3
I haven't used either a HV or HP pump but I don't remember anyone mentioning having a problem with pickup location.

Personally, I believe the stock pump is very adequate. Also there is a lot of misleading info out there.

This is a good discussion and it brings out some incomplete understandings as well as some good grasp of the situation.
http://natomessageboard.com/ubbthreads.p...056&page=1
Pete Dunham


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Jeff K Offline
Administrator
#4
boosted chicken Wrote:Why are you going to a HV pump? They are not necessary and can put excess stress on the aux/dizzy gears.


^^^^^^THIS! The aux shaft / dist gear are a weak link on these engines. No need to stress them even more, especially what a standard volume / standard pressure is more than enough in the first place.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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ridgeback Offline
Member
#5
I guess I only saw the posts regarding that HIGH PRESSURE pumps put excessive stress on the dizzy and that HIGH VOLUME pumps were on the fence of being neither beneficial or harmful.

Just thought it would be a good upgrade but if all agreed that both types (HP & HV) suck then so be it... stock it will stay.

I can save a few bucks with stock also, this Esslinger Billet Aux. $ Dizzy is a big nut!
Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
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BJL Offline
Moderator
#6
had a high volume pump in my blue tc, that thing eat a dizzy gear every 6 months or so. engine up rebuilding the engine and using reg volume pump. never happened again.
Brian J Larkin
88TC 320k miles
T3, FMIC ,3in stinger exhaust, gillis,
255 walbro, afpr, 5spd swap,spec clutch, sn95 5 lug,.
89 Cougar XR7 3.8SC Auto
95 Ranger Splash 3.0 auto
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ridgeback Offline
Member
#7
Good to know.. Thanks! How long have you been on your latest Dizzy since the OEM oil pump?


Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
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BJL Offline
Moderator
#8
i took it out of my blue car in 2004 and it sat on a stand for a few years then in 2007 i rebuilt it. My TC had 267k then, now has 315k.
Brian J Larkin
88TC 320k miles
T3, FMIC ,3in stinger exhaust, gillis,
255 walbro, afpr, 5spd swap,spec clutch, sn95 5 lug,.
89 Cougar XR7 3.8SC Auto
95 Ranger Splash 3.0 auto
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ridgeback Offline
Member
#9
sounds promising!

Did you replace just the distributor gear or the Aux shaft & Dist gear and new or used??
Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
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