[Bulk] Re: [Diy_efi] Nissan engine

[Jason M.]

You will also want to change the oil and filter.  This will make sure 
anything that might have fallen/crawled into the pan over the years is out 
and that you have a good filter that won't burst under pressure.

After you run it for a little while you'll want to change the oil and filter 
again.

Of course this is assuming you care about the engine and want it to last as 
long as possible without actually taking the engine apart for cleaning and 
replacement of worn items.

btw, I'll be getting an engine that has sat for 3 years running this summer. 
Pulled the intake and oil pan to see the general condition.  Found the valve 
stems had a fair amount of rust on them.  To avoid a valve sticking or 
damaging a valve guide I've spent $60 on a gasket set so the whole thing can 
be torn apart and cleaned up.  Much cheaper then possibly spending $500 to 
have the heads rebuilt or $600 on a set of pistons if a ring breaks and 
damages a piston or possibly a bore.

Engine I'm working on is a 1976 8.2L cadillac.

And yes it would be a good idea to disconnect the power lead to the coil so 
the ignition can't fire if you just want to spin the engine with the 
starter.  Although if you are at the point where you are spinning the engine 
with the starter you should go ahead and start the engine so it can build 
oil pressure quickly.  Ideally you'd find a way to spin the oil pump drive 
(not possible on many newer engines don't know about yours) to circulate oil 
before even turning the engine.  Second best is to remove a rocker arm 
cover, cam cover or intake, whatever gains you the best access to the 
internals of the engine and pour oil on everything.  Some of which will 
hopefully fall on top of the crank, rods, etc... to get some lubrication 
there before things are moving.


----- Original Message ----- 
From: "Bobby Yates Emory" <liberty1 at gmail.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, June 01, 2006 12:06 PM
Subject: [Bulk] Re: [Diy_efi] Nissan engine


> Ian,
>
> Restart procedure sounds about right, but I would use Marvel Mystery Oil.
> Put a couple of tablespoons down each cylinder.  Let sit over night (or a
> day or two).  Put another tablespoon down each cylinder.  Turn engine over 
> a
> few rounds with a socket on the harmonic balancer bolt (sparks plugs out 
> and
> ignition off).  With the plugs still out, turn over a few times with the
> starter (this is to get all the excess oil out of the cylinders).   Then
> install plugs and try to start up.
>
> (Caution - I have heard that electronic ignitions can be damaged by 
> running
> the engine with one or more wires off the plugs.  So it may be worth your
> while to rig up a way to "hit" the starter, without turning on the
> ignition.  I don't remember how the starter solenoid worked on my 240Z, 
> but
> usually there is a small stud on the solenoid which you can put 12 V to 
> and
> it kicks in the solenoid which connects power and engages the starter
> drive.   I am not certain about this concern - I could be worrying
> unnecessarily. Anyone know for 280Z?)
>
> Good luck,
> Bobby
>
>
>
> On 6/1/06, Ian Molton <spyro at f2s.com> wrote:
>>
>> Hey there.
>>
>> Well, I've taken on another project (despite my daily driver being in
>> such bad shape - I must be mad).
>>
>> I've acquired a Datsun 280 ZX as a restoration project.
>>
>> Questions about the engine (which I havent seen yet).
>>
>> 1) Is it a Bosch L-Jet as I've seen mentioned on some sites ?
>> 2) Can the injection system be replaced with something more modern (I
>> know the existing one is in bad shape) like Megasquirt? Has this 'been
>> done' on this engine ?
>> 3) I know the engine can be turbo'd so any solution I add now I would
>> like to be able to use after adding the turbo.
>> 4) I have zero experience of petrols - this one has been standing for 6
>> years so I assume its going to need some TLC to get it running again. A
>> friend has said SOP is to pull the plugs and pour a little oil in each
>> cylinder then turn by hand before cranking, then reinserting plugs, then
>> going for a start. That seems sensible - but is it enough ?
>>
>> any and all advice would be appreciated.
>> _______________________________________________
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>>
>
>
>
> -- 
> Toward freedom,
>
> Bobby Yates Emory
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>