| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
03-29-2003, 09:07 PM
|
||||
|
||||
here's an interesting item I stumbled accross on EBAY.....should make for a lively topic.
I noticed that this melling pump #54F does NOT have the heavy cast bottom plate  http://cgi.ebay.com/ebaymotors/ws/eB...&category=6770 1973 SD455 T/A 1979 S.E. T/A http://community.webshots.com/album/16587603rOyvmFCiHs
__________________
Home of WFO Hyperformance Shaker induction. |
|
#2
03-29-2003, 09:07 PM
|
||||
|
||||
|
here's an interesting item I stumbled accross on EBAY.....should make for a lively topic.
I noticed that this melling pump #54F does NOT have the heavy cast bottom plate http://cgi.ebay.com/ebaymotors/ws/eB...&category=6770 1973 SD455 T/A 1979 S.E. T/A http://community.webshots.com/album/16587603rOyvmFCiHs
__________________
Home of WFO Hyperformance Shaker induction. |
|
#3
03-29-2003, 09:16 PM
|
|||
|
|||
|
Larry,
I just received an M54DS pump, which also doesn't have the cast bottom plate. I know this isn't an SD pump, but I thought it was still supposed to have the heavy plate. Looks like I'll be buying Speed Pro pumps from now on.  ---------------------------- '72 Formula 400 12.77 @ 108 / 234/244 cam / Q-jet / 3840# / 3.23s / street tires (not DRs) '73 Firebird 400/4-speed
__________________
---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
|
#4
03-29-2003, 09:28 PM
|
||||
|
||||
|
I run quite a few of the Melling M54DS pumps on my cars, all of them have the same non-cast bottom plate as seen in that eBay auction. All of them work just great, I clean and prep my own pumps. Stock pumps have an almost paper-thin bottom plate, the one on the Melling pump is stout enough I would think.
Seems funny how that $29 pump in the eBay ad costs $75, it doesn't even include a pickup. I would think it should include a pickup, attached the way most performance users would like either by welding or running a fastener through the pickup tube and pump casting.
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
|
#5
03-29-2003, 10:11 PM
|
|||
|
|||
|
What's done to that pump is alot of labor intensive work. It takes time and that dude wants to get paid for every minute.
Better to pay $75 than get a stock $29 pump and take a chance? Its all up to the consumer. Chance favors the prepared mind. |
|
#6
03-30-2003, 09:31 AM
|
||||
|
||||
|
The bottom plate looks like all the ones I've ever owned? I thought the one shown in the e-bay ad was the thicker plate?
|
|
#7
03-30-2003, 10:16 AM
|
||||
|
||||
|
Considering what He is doing, I have now found my
pump guy! I would easily pay $50.00 to have all of the prep done that he is advertising. Easily a couple of hours of labor plus the coatings, the polishing, the safety wired bolts, etc. Thanks Bruce and Larry for the info. Tom V. ps I have about 20 of the Wolverine Blue Racer oil pumps I bought when they were a part of Camshaft Machine/ Crane. None have the older cast bottom plates with the Phillips head screws, All are the medium thickness plates with bolts.  [This message was edited by Tom Vaught on March 30, 2003 at 12:25 PM.] [This message was edited by Tom Vaught on March 30, 2003 at 12:27 PM.]
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
|
#8
03-30-2003, 01:17 PM
|
||||
|
||||
|
Well, I have been selling and using the DynaGear pump for quite awhile now and the workmanship and quality control seemed great. They had the thicker bottom plate. No trash internally and no rusted up check balls. Just a better pump all the way around.
Now the bummer.  The DynaGear Company went under and Melling bought the Pump division. Tried to buy all the pumps available anywhere, but they are no longer shipping pumps from DynaGear. Why I don't know. Now I'm running out of options for a quality pump at a "Fair" price. Build it fast, build it right, build a Pontiac. http://PontiacDude.cc |
|
#9
03-30-2003, 01:37 PM
|
|||
|
|||
|
Looks like we all need to start e-mailing BOP Engineering asking when their new oil pump will be done!
Chance favors the prepared mind. |
|
#10
04-02-2003, 06:16 AM
|
||||
|
||||
|
The last two Mellings I have gotten have the stamped steel plate. Speed Pros have the thicker cast plate.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#11
04-02-2003, 06:48 AM
|
||||
|
||||
|
So, is there any reason not to swap a thicker bottom plate from an older pump onto your new pump, provided everything matches up and fits?
__________________
12.84 @ 106.89 with street radials. 12.63 @ 108.39 on drag radials. |
|
#12
04-02-2003, 07:08 AM
|
|||
|
|||
|
I am confused as to why you would need the thicker plate if everything matches up and fits to begin with. Nothing is supposed to touch the plate as it is, so what difference does it make whether it is think or thin?
Chance favors the prepared mind. |
|
#13
04-02-2003, 05:13 PM
|
||||
|
||||
|
The thicker plate won't flex as much as a thin one and lose oil pressure due to leakage at the pump body to bottom plate interface . Even if the gears never touched or put thrust downward on the plate a thin one will flex and leak due to oil pressure alone. This is at least one reason why the factory would have added the thicker plate on higher pressure RA and SD oil pumps.
Let's go racing! www.outlawpontiacs.com/members/B-Man2.php www.outlawpontiacs.com/members/B-Man.php
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
