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#1 |
Registered User
Join Date: Apr 2002
Location: Hudson FL gulf coast
Posts: 624
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1981 GMC sierra 350 DIESEL
help i just bot a 1981 GMC high Sierra LB with 350 Diesel .. i have a new fuel filter .. in the box .. where does it go ? last time on the road wuz about 1992 .. so New filter needed.... anybody ?
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#2 |
Registered User
Join Date: May 2004
Location: Lubbock, Texas
Posts: 2,121
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it probally wouldn't hurt to replace the filter, about all i know about diesels is that diesel and water, isn't a good combination, i have no clue about the filter, but congrats on the new truck!
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'96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer |
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#3 |
ROCKET POWER!
Join Date: Feb 2003
Location: Finland, Europe
Posts: 509
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Finally someone from the states who's still got a 350D(X). You've got quite a rare combination there, finding a 78-81 pickup that still has a 350 Olds diesel is not a common thing, never was (low production numbers) and especially after 23+ years. Most of those engines grenaded before their 10th birthday.
Anyway, what kind of a filter is it? I can't remember what year GM switched over to the square box style filter, but you probably have a round canister type filter (looks like an oil filter), check behind the intake manifold.
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What did i do last nite? I had a wonderful time, That's what they tell me What did i do last nite? 1979 C-10 shortfleet: Olds 350, Th400, 12 bolt Current project: 1969 Olds 455 W-30, needing a rebuild |
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#4 |
Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,550
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84 was the first year of the square fuel filter on the diesels.
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Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed |
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#5 |
Registered User
Join Date: Apr 2002
Location: Hudson FL gulf coast
Posts: 624
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i bot a new filter .. and its a square one.. I saved the rep... thanks I will take a look... Hugh
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#6 |
Ultimate Diesel Dude
Join Date: Oct 2002
Location: Southwest Missouri
Posts: 328
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The 350 diesels used a small rectangular filter mounted in the rear of the intake manifold, behind the injection pump. The fuel lines screwed into and out of the filter, kind of a pain to change. The 6.2L was introduced in 1982, and they had twin, spin-on filters, a large primary on the firewall, and smaller secondary on the back of the intake manifold. In 84, they combined both filters into a large, rectangular filter mounted on the firewall. I can't remember if the 350 diesel trucks had a dual filter system or not.
Good luck! Let us know if you get it running! And like Rock said, that's a rare truck. Most of those trucks had the diesels ripped out and an Olds 350 gasser put back in its place. Do us a favor and keep that diesel in there! Casey
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Project truck: '81 C/20 converted to 6.2L TURBO DIESEL bored .040", gear drive, 6.5L injectors/pump, custom pistons, custom 4" exhaust, 700R4, 4.10's Daily Driver: '95 K1500 Tahoe, 6.5L TURBO DIESEL, NP241, 4L80E, 3.42's |
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#7 |
Registered User
Join Date: Apr 2002
Location: Hudson FL gulf coast
Posts: 624
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yup thats the filter i got .. working on this coming weekend.. thanks casey
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