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Author
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Topic: 289 all fired up!!
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67fastback2+2
Journeyman Posts: 92
From: Pennsville,New Jersey
Registered: Oct 2001
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posted 04-23-2002 03:58 PM
   
Started up for the first time sounds good with open headers. Got a call from my neighbor 5 minutes later explaining his lack of enthusiasm and patience. I do have some questions though: My oil pressure was buried according to mechanical guage (0-80) I hooked up. What would make it so high. Is that bad for the motor? Also my timing marks are way off btdc. I replaced the "67" timing cover with one from a newer 302, are the pointers set up different? My fastback is starting to come together THANKS for all your help  Pete
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 04-23-2002 05:23 PM
The high oil pressure is most likely caused by tight bearing clearances combined with a little assembly lube that hasn't melted off yet. If you break it in nice and gently it should normalize and come down a little. The 351C in my Sprint normally runs 75-80 psi.For the timing pointer, I believe after '69 they switched sides due to the lower radiator hose exiting off the opposite side. ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773 The secret of success is sincerity. Once you can fake that, you got it made.
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68stang351
Gearhead Posts: 267
From: Savoy TX, USA
Registered: Mar 2002
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posted 04-23-2002 05:58 PM
Cool Pete!!! I can't wait to get my 351W in and runnin', so I can understand the excitement. Don't have any idea about the oil pressure though.------------------
Hoofbeats are louder than Heartbeats!
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johnmustang
Gearhead Posts: 4088
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001
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posted 04-23-2002 06:03 PM
Sounds great Pete , I hope to have my 289 in the car and running in the next 2 to 3 weeks , as time from work allows JOHN ------------------
65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member:Vancouver Island Mustang Association
M&M #1710
MyPhotoPage
MY TRUCK
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Stang28965
Gearhead Posts: 383
From: Webster New York USA
Registered: Mar 2001
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posted 04-24-2002 06:22 AM
I had around 80psi,(about 100psi when COLD!) which was not making me happy, Its just to much for a street engine (for me atleast) I took my oil pan out and found that the engine builder put a High Volume oil pump on my engine, I replaced it with with a normal pump and I am at around 35-40psi at idle, So I am much more happy with that.------------------
-Jeff
1965 Mustang with a 289 bored .030" over. The 289 has a Holley 600cfm 4bbl, 302 heads, tri-y headers, Elgin cam .448int. 204deg, .472 exh 214deg. Eagle connecting rods, As for the drivetrain, I have a 4speed with 3.55 gears in the back. http://members.cardomain.com/stang65
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sigtauenus
Gearhead Posts: 1750
From: Beaufort, SC
Registered: Jun 2000
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posted 04-25-2002 08:27 AM
quote:
Originally posted by Stang28965:
I had around 80psi,(about 100psi when COLD!)... I took my oil pan out and found that the engine builder put a High Volume oil pump on my engine, I replaced it with with a normal pump and I am at around 35-40psi at idle
hmm, I thought a high volume oil pump was just that, high volume, ie, it moves more oil. If you want higher pressure, don't you have to change the spring inside the pump? For some reason I recall a high pressure spring from Ford Motorsports. Maybe your builder also put the high pressure spring in the high volume pump? [This message has been edited by sigtauenus (edited 04-25-2002).]
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 04-25-2002 09:31 AM
quote:
Originally posted by sigtauenus:
hmm, I thought a high volume oil pump was just that, high volume, ie, it moves more oil. If you want higher pressure, don't you have to change the spring inside the pump? For some reason I recall a high pressure spring from Ford Motorsports. Maybe your builder also put the high pressure spring in the high volume pump?
You're right. It's a matter of preference, but I'd prefer the 80 psi pump because as the engine ages the clearances will increase and the pressure will drop, plus you can use a thinner oil. With 35 psi, you have less room to fall. I also feel high volume pumps do a better job at bearing cooling. Some don't like the high psi because of the load on the oil pump driveshaft and distributor gear, in addition to horsepower drain and I see their point. I always use a hardened distributor driveshaft and I've never had a problem with distributor gear wear.
------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773 The secret of success is sincerity. Once you can fake that, you got it made.
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bluestreek
Gearhead Posts: 1202
From: Athens,GA
Registered: Jul 2001
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posted 04-25-2002 09:45 AM
Me too Steve!! I put a HV oil pump in my work truck rebuild and it idled @ 60 psi and ran @ 90 psi when fresh. Now 200,000 miles later it is idling @ 30 and running @ 60.
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Stang28965
Gearhead Posts: 383
From: Webster New York USA
Registered: Mar 2001
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posted 04-25-2002 04:50 PM
All I know is a replaced the pump with a Normal stock one, and My oil pressure is where I want it to be. When it was at 90-100psi I noticed my oil filter would leak a little, so I did not really like that.------------------
-Jeff
1965 Mustang with a 289 bored .030" over. The 289 has a Holley 600cfm 4bbl, 302 heads, tri-y headers, Elgin cam .448int. 204deg, .472 exh 214deg. Eagle connecting rods, As for the drivetrain, I have a 4speed with 3.55 gears in the back. http://members.cardomain.com/stang65
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73 Green Hoss
Journeyman Posts: 22
From: Waxahachie,TX
Registered: Mar 2002
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posted 04-25-2002 08:12 PM
Sounds good Pete! I can here it from here! I'm sure your neighbors will come around  OOr if not, just bring them some ear plugs  Good luck with everything
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