Are lifters from 70's ford v8 motors the same?
guess it is not symetrical....
#19
03-29-2009, 08:15 PM
I can tell by your picture that its definately not a 390or 360. I guess numberdummy already cleared that up for you. If you post casting numbers off the head, someone here can prolly tell you what it is.
I've heard of broken up pistons (detonation) causing a knock that comes from the top side and sounds like a lifter- noise goes away as engine revs up. If you get no rpm change killing that cyl, I'd to a compression test and a leakage test. if you get air leakage into the crank case from that hole maybe its time to pull the head and have a look.
I've heard of broken up pistons (detonation) causing a knock that comes from the top side and sounds like a lifter- noise goes away as engine revs up. If you get no rpm change killing that cyl, I'd to a compression test and a leakage test. if you get air leakage into the crank case from that hole maybe its time to pull the head and have a look.
#21
03-29-2009, 10:21 PM
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well it is definately a 351M previous owner was full of BS. he told me it was recently rebuilt and I half believe him because it dosent seem to smoke at all and the crank dosent rattle around on startup. This little knock does bug me though. it definately seems like a lifter, maybe an intake lifter since it isnt backfiring and it is not a rod knock because it is a longer interval in between knocks and goes away at higher rpm. leakdown test seems like a good start. It is running better after a little tune up. new air and fuel filter, plugs, and wires. the old plugs were gapped all wrong or maybe not at all. they didnt look too bad though. none of the plugs looked fouled, but some had a little more carbon on them. the truck was running pig rich when i got it so that is probably the cause of all that carbon.
#22
03-29-2009, 11:23 PM
#23
03-29-2009, 11:32 PM
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Yep. flipped the gasket and it was perfect. felt like a huge idiot. the previous owner threw me off telling me the truck had a 390 in it but that was obviously BS. the engine is a 351M. I found some receipts in the glovebox from a rebuild of the motor back in the 80's but dont know if it was rebuilt again recently or not. looks like the receipts are for boring the motor .030 over and rebuilding the bottom end. looks like the rockers were replaced and a valve job was done also according to the paperwork. the truck has a 4 barrel edelbrock on it and headers as well. I saw a receipt for a timing chain and new timing gear so i hope the guy put a straight timing gear on it and the the one that is retarded 4 degrees. the knocking noise is the only thing that is really bugging me now. I just bought this truck a couple weeks ago and have fixed a ton of stuff on it already. Mostly wiring problems, and aesthetic stuff. I hope it is just a bad lifter...
#24
03-29-2009, 11:41 PM
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^ ^ ^ 351M/400 ^ ^ ^
No FE engines were installed after 1976 in F100/350's..
F26 = F250 4WD. No 390 engines were factory installed in any 1968/76 F100/250 4WD's.
Where did you get the VIN from? Off the registration or off the Warranty Plate? (located on the left door face below the latch)
By the VIN...Your truck is a 1977 F250 4WD that originally came with the 351M.
H is the VIN engine code for 1968/76 390 2V's.
H is the VIN engine code for 1977/79 351M 2V's.
S is the VIN engine code for 1977/79 400 2V's.
FE engines: 5 valve cover bolts.
351M/400 = 8 valve cover bolts.
Are you sure it's a lifter? Ford did not install exhaust manifold gaskets on any engines back then.
351M's and 400's did not come with heat shields, which fit between the head and the manifold.
Ticking exhaust manifolds is a common occurance, regardless of what engine the vehicle has.
btw: Your VIN (F26H-Y28009) is missing the 5th digit = which is the assembly plant code. VIN's were 11 digits long thru 1980 on trucks, Bronco's, Econolines.
No FE engines were installed after 1976 in F100/350's..
F26 = F250 4WD. No 390 engines were factory installed in any 1968/76 F100/250 4WD's.
Where did you get the VIN from? Off the registration or off the Warranty Plate? (located on the left door face below the latch)
By the VIN...Your truck is a 1977 F250 4WD that originally came with the 351M.
H is the VIN engine code for 1968/76 390 2V's.
H is the VIN engine code for 1977/79 351M 2V's.
S is the VIN engine code for 1977/79 400 2V's.
FE engines: 5 valve cover bolts.
351M/400 = 8 valve cover bolts.
Are you sure it's a lifter? Ford did not install exhaust manifold gaskets on any engines back then.
351M's and 400's did not come with heat shields, which fit between the head and the manifold.
Ticking exhaust manifolds is a common occurance, regardless of what engine the vehicle has.
btw: Your VIN (F26H-Y28009) is missing the 5th digit = which is the assembly plant code. VIN's were 11 digits long thru 1980 on trucks, Bronco's, Econolines.
The truck actually has a set of headers on it and they did have some gaskets. I got a little action out of a few of the header bolts when i tried to tighten them but that didnt kick the knocking sound.
#25
03-30-2009, 02:55 AM
460's have 7 valve cover bolts per side.
302/351W's have 6 valve cover bolts per side.
FE engines have 5 valve cover bolts per side.
No 351W engines were factory installed in F150/350's & Bronco's until 1981.
The largest engine available in 1980/83 F100's was the 302.
#26
03-30-2009, 11:44 AM
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351M/400's have 8 valve cover bolts per side.
460's have 7 valve cover bolts per side.
302/351W's have 6 valve cover bolts per side.
FE engines have 5 valve cover bolts per side.
No 351W engines were factory installed in F150/350's & Bronco's until 1981.
The largest engine available in 1980/83 F100's was the 302.
460's have 7 valve cover bolts per side.
302/351W's have 6 valve cover bolts per side.
FE engines have 5 valve cover bolts per side.
No 351W engines were factory installed in F150/350's & Bronco's until 1981.
The largest engine available in 1980/83 F100's was the 302.
#27
03-30-2009, 12:11 PM
When it comes to things 4WD, I'm not that knowlegeable, and I've said so...several times...right here on FTE.
Living and working in LA LA Land (Los Angeles, CA) for decades...where it hasn't snowed since 1949 (!)....means...there weren't that many 4WD trucks & Bronco's sold 'round here.
Since there were few 4WD's sold here, I didn't need to look up parts for them on a daily basis...as I did for 2WD's.
Living and working in LA LA Land (Los Angeles, CA) for decades...where it hasn't snowed since 1949 (!)....means...there weren't that many 4WD trucks & Bronco's sold 'round here.
Since there were few 4WD's sold here, I didn't need to look up parts for them on a daily basis...as I did for 2WD's.
#30
06-06-2009, 11:29 PM
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flip it over? looks like it might be upside down. Your engine is clearly either a 351M or 400 which share the same valve cover gasket and block. These motors are notorious for nearly no oil pressure at an idle when they are worn. I suspect you may just have poor oil pressure and the hydraulic lifters may not be pumping up enough.