ok I got the intake lid and valve covers off. all 4 chains look to be ok although the passenger side exhaust cam is locked up tight. I pulled the plugs, and they are undamaged and there isnt any damage or debris visible through the holes. thats as far as i have got so far. will pull the cam out after a few hours of sleep, and see what I can see. opinions? we'll see who is right?
Contributing Member
I've had two locked up....
One was rods.
The other was bearings due to oil pump breakage.
Thanks to Darrin @ BC Automotive:
$1800 and it was worse than when he started!
Brian (FordNut) FPG # 1458 of 7838
03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
then 476/410 D1SC ProCharged on stock block
then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker
03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
01 F150 longbed
01 F150 shortbed
00 F150 4x4 stepside
01 F150 4x4 7700
68 Stang FB (70 351C 4V, 4 wheel discs, project car)
Mods listed here (some items not current): FordNut's Mods
Junior Member
Brian what causes the oil pump to fail ?
2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
2003 marauder black 28,000 miles all stock. Garage Queen.
2004 marauder red daily driver.
Get down or lay down
could it be from all that extra power.Originally Posted by burt ragio
03 300a. black #1695 of 7839 born 6/20/02.
Adopted 3/31/11. Sold
03 300a black #1199
TERMINATOR SWAP
430rwhp. Done by mo's
Contributing Member
The oil pump internals are made from powdered metal, just like the rods. Sometimes a pulley change will contribute to failure, sometimes they will just fail on their own. When they fail, the main bearings and rod bearings get spun.
Aftermarket oil pump gears are billet, as are the gears that are in the Melling pump.
Thanks to Darrin @ BC Automotive:
$1800 and it was worse than when he started!
Brian (FordNut) FPG # 1458 of 7838
03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
then 476/410 D1SC ProCharged on stock block
then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker
03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
01 F150 longbed
01 F150 shortbed
00 F150 4x4 stepside
01 F150 4x4 7700
68 Stang FB (70 351C 4V, 4 wheel discs, project car)
Mods listed here (some items not current): FordNut's Mods
Everything Marauder, LEDs & HI
+1!
IMHO... Any rebuild should include a good aftermarket non-powdered metal oil pump.
“When you can’t make them see the light, make them feel the heat.”
Ronald Regan
"The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."
Lt. Colonel Ralph Peters
“Be polite, be professional, but have a plan to kill everybody you meet.”
"I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
General James Mattis
Panther Collector
MARK THE CHAINS BEFORE REMOVAL!!!!!!
Try to unbolt the main chain tensioners first to get the tension off the chain first. The main chain drives the exhaust cam so if it jumped time you can get Piston/valve contact. Does the crank turn at all??
2004 Mercury Marauder 300A Black
Build date: 9/26/03 552 of 3214 2004's
105K miles Second Owner. Charcoal interior Heated Seats All stock with Lidio 91/93 Octane tune 14.85@95.63 with 93 tune only. 96 cobra intake cams in the cellar, pondering TR6060 swap.
Pictures
2004 Crown Vic LX 150K Silver Birch with Light flint leather. Auto dim mirror, EATC and steering wheel radio controls. 21mm marauder rear sway bar and wood steering wheel. MM head unit , MM subwoofer coming (really) 04 P-71 80 mm MAF/ airbox 04 p71 zip tube 04 P-71 PCM swap. Heated mirrors with silver birch endcaps coming!!
Pictures
1996 Lincoln Town Car Signature
Touring Edition 250K 2004 PI 2V swap complete! Sold
Pictures
74 Laguna S-3 Project car Original 400 Small block
Senior Member
Don't bother marking the chains. This will force you to put it back together the right way. I have some instructions, PM me your email address if you're interested.
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