1986 Single Cab

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Re: 1986 Single Cab

Postby DoubleOSeven » 10 Feb 2018, 15:12

£ Yeah, but think of all the fun you'd miss out on?! I haven't seen any petrol single cabs for sale <£3k which are running. They don't seem to come up very often. Mind you, mine doesn't work either !
Cleaned all the earths and the two crowns, but no joy. Might be the binnacle. I'll test the oil pressure with a gauge and go from there.

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Re: 1986 Single Cab

Postby DoubleOSeven » 12 Feb 2018, 10:03

Voltage Stabiliser, tested this while I'll was fault finding, showed 11V so I'll change it out.

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Re: 1986 Single Cab

Postby DoubleOSeven » 12 Feb 2018, 17:59

Ah...my binnacle came from early van so pin outs are different for late van. This may explain why my indicators working on the oil light. Light bulb moment!
Thanks Wiki

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Question is do I now rewire the 14 pin connector VAG: 321971998 to match my binnacle, or use some sort of interface. The 14 pin connectors are big money on ebay, I was thinking of adding another in series. There should be a black support bracket VAG: 690919060 which holds the 14 pin into the back of the binnacle too, may explain why mine keeps falling out.

Solved (well in my head anyway). I won't use the binnacle at all. I'll take +12V off spade on back of alternator, via my test lamp and onto low pressure switch wire. When ignition turned to posn 1 it should light (switch closed). Then after turning engine on the starter only, oil pressure builds, switch opens..light so out. Well that's the theory anyway.
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Re: 1986 Single Cab

Postby DoubleOSeven » 18 Feb 2018, 14:00

Lamp on oil pressure switch did the trick so I now know I've got oil pressure. Checked spark and got fuel up, all good. But not what I'd call a proper cough yet on turn over.
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Re: 1986 Single Cab

Postby itchyfeet » 18 Feb 2018, 14:50

Did you manually set timing?
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Re: 1986 Single Cab

Postby DoubleOSeven » 18 Feb 2018, 14:58

Yeah. We've been turning the dizzy while turning it over. Non of the 12V feeds work, so been taking 12V for carb straight off D+ on alternator.

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Gotta be timing though as you say, wonder if valves staying open.
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Re: 1986 Single Cab

Postby itchyfeet » 18 Feb 2018, 15:38

the only things that need ignition 12V are the coil, and the bypass air valve

coil then connects to ignition amp

don't guess timing set it manually
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Re: 1986 Single Cab

Postby DoubleOSeven » 18 Feb 2018, 18:13

The bypass air valve, remind me what that looks like would you?
I'll earth the test light pin and put crocodile clip on coil negative and set timing manually.
Had a tidy up finally as I'm pretty much there now.
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Re: 1986 Single Cab

Postby itchyfeet » 18 Feb 2018, 18:18

I don't know if you can do the light on the neg trick, its not points

manual timing setting here...
viewtopic.php?f=37&t=163388

idle cutoff valve = bypass air valve

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Re: 1986 Single Cab

Postby DoubleOSeven » 19 Feb 2018, 10:46

I'm not feeling this pressure to be honest. I turn the pulley clockwise with finger in spark plug hole, but feels the same whatever the rotation?

"As you get to compression stroke on No1 you will feel the pressure"

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Re: 1986 Single Cab

Postby DoubleOSeven » 19 Feb 2018, 10:46

Spark plugs look wet, getting fuel OK.
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Re: 1986 Single Cab

Postby itchyfeet » 19 Feb 2018, 10:57

DoubleOSeven wrote:I'm not feeling this pressure to be honest. I turn the pulley clockwise with finger in spark plug hole, but feels the same whatever the rotation?

"As you get to compression stroke on No1 you will feel the pressure"

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did you set preload on hydraulic tappets?
did you check pushrods were seated in tappet centres, very easy to get them on the tappet edge by mistake.

I use a USB enoscope ( under 10 quid on ebay) to check they are centered.
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Re: 1986 Single Cab

Postby DoubleOSeven » 19 Feb 2018, 11:16

I did set preload to 1.5 turns and was quite particular at making sure push rods were seated. Will check again though, I'll pull the rocker covers should help me see TDC too. Either that or put pencil down spark plug hole, should see it rise but would it tell me which stroke.

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Re: 1986 Single Cab

Postby itchyfeet » 19 Feb 2018, 11:29

yes rocker covers off and watch rockers is another way, really should be feeling compression though, perhaps you are not turning fast enough, hard on your own.
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Re: 1986 Single Cab

Postby itchyfeet » 19 Feb 2018, 11:48

you need to wait hours arfter setting preload for compression, I assume you didn't do it today.
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