A big thumbs down for the new melling oil pump-Big failure!

So I have been off of the boards for a little bit but finally got my 98 Cobra back together (forged shortblock install w/ported heads) well, she started up last night and ran great, the oil pressure seemed a little low but I didnt think much of it, I drove it around the block a few times,let it cool down and checked everything. Everything looked (and sounded) great so decided to drive it to a freinds house to get some break in miles on it and have him help me with my new K-member swap, about 5 miles down the highway I hear a lifter noise and it get louder and and louder, I look at the pressure guage and no god damn presure:cuss:

I have my neighbor come and tow me home and being pissed off decided to leave it till the morning, well, just got the timing cover and oil pan off and the billet melling oil pump gears are broken into 4 pieces!! thankfull the rest of the shortblock looks okay, I am gonna take it out and check the rest of it but looks good so far.

This is a warning for those that have these pumps be carefull, In got mine from summit about 2 weeks ago, it could be a bad batch but :shrug:

be sure to post this in one of the mmr oil pump threads

Damn!

Doesn't anyone make a completely trustworthy set of billet oil pump gears. I think people have reported failures of EVERY kind being made.

I have forwarded this post to my contact at Melling. I am sure they will be all over this as Melling is a very high quality, reputable company. My new engine has this pump, so I am concerned as well. I will report here when I hear back from the folks at Melling.

Tony

Bump. Sorry for the bad luck. I wonder what the manufacture has to say about this?

I've had great success with the stock one. Why change something that isn't broke.

Hopefully you get it worked out. I hate issues like that after a big build up.

WELL HELL!!!! This sucks for my plans! I guess I won't sell my set of billet gears!!

Stupid question. Are you sure that you got the correct pump? Did YOU put your engine together or did you rely on a shop? I'm not trying to point fingers.

Was the casting number on the part M10227 or M227???

glad i didnt order this aswell...

damn it i wish someone could just build one of these dang things right. building a motor cost to much to do it twice

:nonono: I was literally just about to order one from Lethal Performance. Sorry to hear about the issues. I hope it all works out for you.

Maybe it was a bad batch?:shrug:

Have there been issues with the stock ones? Or is this one of those SVTP parts that people replace because the internet said so?

DON'T JUMP TO CONCLUSIONS.......YET.
He still has some questions to answer.

Mach1Marauder said:

Was the casting number on the part M10227 or M227???

Click to expand...

Bump for a Great Question....actually a HUGE Question.

There are two types of those pumps. One with the billet gears and one without.

If he could post the part/casting number that will answer LOTS of questions.

The PM gear pump is 10689 and the billet gears is the 10227.

Naz

The guy works for MMR.
I don't believe a word of it.

Mach1Marauder said:

DON'T JUMP TO CONCLUSIONS.......YET.
He still has some questions to answer.

Click to expand...

yup and the fact that back in april he posted he works for MMR............home of the super strong cyro treated geared oil pumps :-D

:bs:

Thats an easy way to drag your company through the mud... :nono:

Wow!

http://www.svtperformance.com/forums/showpost.php?p=2165728&postcount=94

I mean, I'm NOT running either the MMR stuff or the Mellin stuff but that is some BS if (BIG IF) this a bugus post.

Just my .02

Naz

Busted. To many private eyes around that remember EVERYTHING.

WTF is up with all this chicken shit stuff on the internet these days? :shrug:

teh intarweb tubes are a double edged sword. live by it, die by it.