Melling oil Pump w/ Ls1 timing cover
02-26-2009, 07:03 PM
#1
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Melling oil Pump w/ Ls1 timing cover Ok I have seen threads reguarding these 2 things all over the internet, but all of the threads are left without an answer. I'm sure there is a thread on here about it, but the search engine wouldn't work for me...
All i want to know is WILL IT WORK OR NOT.
I've got a double roller, and the Melling oil pump, and like most it won't clearance as it hits the circle that holds the seal on the timing cover. I am building my motor as we speak, so I just need to know, WILL IT WORK OR NOT....and what front cover (if any) can I run on this to make it work?
Thanks!
All i want to know is WILL IT WORK OR NOT.
I've got a double roller, and the Melling oil pump, and like most it won't clearance as it hits the circle that holds the seal on the timing cover. I am building my motor as we speak, so I just need to know, WILL IT WORK OR NOT....and what front cover (if any) can I run on this to make it work?
Thanks!
02-27-2009, 12:52 PM
#5
Sometimes it will fit, sometimes it won't apparently... very tight clearance. I actually personally witnessed one of the most well-regarded engine builders on this board install a front cover and explain this phenomena to me... and he admitted he couldn't explain why some fit fine and some don't. Mark the protruding edges of the pump with some sort of putty/dye and then test fit... so you can see where the contact is occurring (if it is). Then grind down the offending area if necessary.
02-27-2009, 08:30 PM
#6
I just had my setup completed and the cover needs to ground on quite a bit. Especially around the pickup as well as the cam sensor bolt hole bung needs to be machined off. Best way is to install cover without the gasket and mark where you need to grind that way when the cover is back on it will clear even more. There are not any aftermarket covers that will work.
02-27-2009, 08:35 PM
#7
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It WILL work. You will have to machine the raised area off the front of the oil pump cover. We do it all the time. There is also a little grinding required on the inside of the timing cover to clear ribs on the casting of the pump.
I've done this at least 60 or 70 times...
Shane
I've done this at least 60 or 70 times...
Shane
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02-28-2009, 09:25 AM
#8
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It WILL work. You will have to machine the raised area off the front of the oil pump cover. We do it all the time. There is also a little grinding required on the inside of the timing cover to clear ribs on the casting of the pump.
I've done this at least 60 or 70 times...
Shane
I've done this at least 60 or 70 times...
Shane
02-28-2009, 05:06 PM
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Sometimes it will fit, sometimes it won't apparently... very tight clearance. I actually personally witnessed one of the most well-regarded engine builders on this board install a front cover and explain this phenomena to me... and he admitted he couldn't explain why some fit fine and some don't. Mark the protruding edges of the pump with some sort of putty/dye and then test fit... so you can see where the contact is occurring (if it is). Then grind down the offending area if necessary.
02-28-2009, 05:10 PM
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I am not going to grind on that oil pump at all, there is a reason melling made it thick, it would defeat the purpose to grind it off. if the pump ever got hot that matieral would expand, if it was made thin.....
02-28-2009, 05:31 PM
#13
^^^LME mills there pumps .070 for clearance. I am running it without issues and I also had to grind on the circle part. It really is not an issue. What do you think engine builders do to the inside of your block on strokers to have the rotating parts clear?
02-28-2009, 05:46 PM
#15
We just found a different oil pump that fit without the spacers for the double roller timing chain, and it was a high volume pump too. I belive it was offered by SLP. I do not remember much more of the details but I too did not feel comfortable in milling my cover or pump. I did think about doing a double gasket, but we had consers with the clearance on the outside of the cover and the seal placement on the dampner. You would also have to keep in mind the extra spacing (larger gap) on the cam sensor if the cover is moved out with a spacer.
02-28-2009, 09:36 PM
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It WILL work. You will have to machine the raised area off the front of the oil pump cover. We do it all the time. There is also a little grinding required on the inside of the timing cover to clear ribs on the casting of the pump.
I've done this at least 60 or 70 times...
Shane
I've done this at least 60 or 70 times...
Shane
and that's the result
03-01-2009, 03:00 AM
#19
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the oil pump plate is .290 at its thickest point,it's .190 in the area's where's its hollowed inside,milling .070 for clearence would make the front plate .190 thick,i dont know if that can handle a long road trip,an 100+degree wheather........