Duke rebuilding (Page 1/2)
LS4FieroGuy MAR 15, 10:41 PM
So I'm rebuilding an 88 Duke and I can't find where the oil pump mounts. Also did some of the 88 Dukes not have an oil drain plug?

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Joshua Seeger

cartercarbaficionado MAR 16, 12:59 AM

quote
Originally posted by LS4FieroGuy:

So I'm rebuilding an 88 Duke and I can't find where the oil pump mounts. Also did some of the 88 Dukes not have an oil drain plug?



some pictures might help. they all had drain plugs but i believe they are the filter cover piece itself on the 88s
as for the pump? no idea without a picture of what your looking at

[This message has been edited by cartercarbaficionado (edited 03-16-2025).]

cartercarbaficionado MAR 16, 01:19 AM
https://www.ebay.com/itm/296872765642
https://www.ebay.com/itm/142386410380
thst should fix your problem if you have the wrong one. i just so happened to have a gm oem dealers manual for a celebrity with a R vin engine
other part numbers you might need are
10038405
12508076

[This message has been edited by cartercarbaficionado (edited 03-16-2025).]

LS4FieroGuy MAR 16, 10:44 AM

quote
Originally posted by cartercarbaficionado:

some pictures might help. they all had drain plugs but i believe they are the filter cover piece itself on the 88s
as for the pump? no idea without a picture of what your looking at






So what is this?
LS4FieroGuy MAR 16, 10:44 AM

cartercarbaficionado MAR 16, 06:26 PM

quote
Originally posted by LS4FieroGuy:


So what is this?


thats the oil pump for a 87-88 only iron duke.
LS4FieroGuy MAR 17, 12:12 AM

quote
Originally posted by cartercarbaficionado:

thats the oil pump for a 87-88 only iron duke.



I just tore an 88 Duke apart and that wasn't in there.
cartercarbaficionado MAR 17, 02:17 AM

quote
Originally posted by LS4FieroGuy:


I just tore an 88 Duke apart and that wasn't in there.


that balance shaft assembly has the oil pump and is SUPPOSED to be there. i litterally called and asked the entire jet city fiero club to make sure that 88 used that part. (edit wrong about 87. got dates wrong because of the year crossover)
if you still dont believe me heres a thread about this.
https://www.fiero.nl/forum/...110502-2-107077.html

[This message has been edited by cartercarbaficionado (edited 03-17-2025).]

cartercarbaficionado MAR 17, 02:18 AM

quote
Originally posted by LS4FieroGuy:


I just tore an 88 Duke apart and that wasn't in there.


also like maybe show a picture of the bottom of the engine where your trying to mount the pump to.
82-T/A [At Work] MAR 17, 06:29 AM
Yeah, I concur with CarterCarbs here... that device / component has the balance shafts and the oil pump built in as one unit. The 88 Duke is a pretty cool motor with the enhancements they made... but that oil pump you're showing (the Melling), I'm almost positive that's for 84-86 (87?) Iron Dukes. It's identical to the one my daughter installed in her Iron Duke. I don't think you'll be able to use that one.