1986 F-250 Progress Thread
Post Fiend
Joined: Nov 2011
Posts: 8,908
Likes: 1
From: Algona, Washington
Do you happen to know what the chances of no compression being caused by the valves being way out of adjustment? K am really hoping that's all that is wrong but won't know till this weekend.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
"Chances"... like a percentage?
Valve recession is always an issue when you run these things hard and hot.
The valves are easy enough to adjust.
Do NOT overtighten -and strip- the adjusters.
Once you do the adjustment, I'd suggest a leakdown just to see what the health of rings and valve seats are.
Valve recession is always an issue when you run these things hard and hot.
The valves are easy enough to adjust.
Do NOT overtighten -and strip- the adjusters.
Once you do the adjustment, I'd suggest a leakdown just to see what the health of rings and valve seats are.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
Do yourself a favor, go find a copy of the VW complete idiot book. It is full of valuable information. 71 should be a dual port 1600, they are bad about cracking heads. Once it is running, do not lug it! Low rpm = low air flow = overheating.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
'How to Keep Your Volkswagon Alive' was "the bible" for many hippies.
The information is still relevant.
The information is still relevant.
Post Fiend
Joined: Nov 2011
Posts: 8,908
Likes: 1
From: Algona, Washington
The Haynes manual is actually pretty nice IMO, as far as general repair and specs it's easier than googling everything to try to find 1 torque spec only to get a bunch of for sale ads...
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Thread Starter
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Logistics Pro
Joined: Sep 2011
Posts: 4,491
Likes: 26
From: Algona,WA
Oh don't worry! I tossed the new one out and washed the old filter out with water and put it back on, seriously though. The Motorcraft FL-1A has 5 more PSI at hot idle in drive, 45 psi vs 40. as well as in park now (55 vs 50 psi) And about 3 more PSI at cruise over the Purolator L30001.(58-62 PSI vs 55-58) It seems that the Fl-1A case is slightly stronger over the L30001. It also seems to changed how now when you step on the throttle hard, the oil pressure goes up higher. I think I'll permanently go back to the FL-1A.
Thread Starter
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Logistics Pro
Joined: Sep 2011
Posts: 4,491
Likes: 26
From: Algona,WA
Oh, and I also found out what was causing my hot hard re start, it was my mechanical advance hanging up slightly sometimes, I moved it back and forth kinda hard and it hasn't been hard to turn over while hot or anything ever since, I am going to take the distributor back apart and fix it for good soon though. Oh, and my Made in China DS II box has the start retard feature that works, maybe now I can set the timing back up to 12-14* BTDC and not have any problems.
Post Fiend
Joined: Nov 2011
Posts: 8,908
Likes: 1
From: Algona, Washington
Heh are you meaning that the damn thing doesn't have an oil filter and that I have to unbolt the small oil screen by the drainplug and clean it? I bought a filter and everything but found out its internal.