DeTomaso Mailing List: May 2000, Message #23

You might consider moving the lifters from 4 and 8 to two other cylinders.
It's not cosidered good practise, but you are now in a bind.


----- Original Message -----
From: Craig Cline <Craig.Cline@trw.com>
To: Multiple recipients of list <detomaso@realbig.com>
Sent: Monday, May 01, 2000 9:47 AM
Subject: RE: Persistent miss with 351 Windsor


> You've got a perplexing problem.  I've never experienced a problem such as
yours, but 3 things do come to mind.
>
> First, you didn't mention changing the carb, while I don't think it should
cause the symptoms you are describing, it can cause some weird problems.
>
> Second, you didn't mention changing the cap and rotor, a bad/cracked
distributor cap will cause similar problems.
>
> Third, I assume you checked the pushrods on 4-8 when you removed the
heads, bent pushrods will cause the problems you describe.  I'd pull the
valve covers and verify that the 4-8 valves are being activated the same
amount as the other cylinders (use a magnetic mount dial indicator gauge).
>
>  Craig Cline
>    1974 Pantera #7352   - the Green One      San Diego, California
>    1969 Shelby GT-500   - the Red One        E-mail: Craig.Cline@trw.com
>    1967 Trans-Am Cougar - the Fast One       Work Phone (858)592-3423
>    1995 Mustang GT      - the Daily One      Home Phone (760)634-3580
>    1997 Expedition      - the Wife's Bus
>
> -----Original Message-----
> From: Franck DJ (Don) [mailto:DJFranck@equilon.com]
> Sent: Monday, May 01, 2000 8:20 AM
> To: Multiple recipients of list
> Subject: Persistent miss with 351 Windsor
>
>
> Okay,  We have done compression test with a low of 140 high of 150.
> Done a Leakdown and it is okay.
> Changes heads
> Changes distributor
> Changed Intake manifold
> Changed Coil
> Changed spark plugs and wires
> Triple checked the firing order IT IS CORRECT
> Changed the Spark plug wires around.
>
> After each of these steps, I get the same results.  It now seems to me
that
> the problem must lie in the short block.
>
> I still have a very bad miss at idle  If I pull the plus wires on 4 and 8,
> there is no difference at idle.  This is a 351 Windsor and 4 and 8 are
next
> to each other in the firing order so I get a VERY BAD vibration at idle.
>
> It does seem to me the I get the most power from 1 and 5 with
progressively
> less power from both sides as I work my way to the back of the engine.
>
> My vacuum is about 19 with a wobble.
>
> I have had two suggestions.
>
> One - the crank is twisted????
> Two - I have a bad cam????
>
> I figure I can change the cam for around a hundred bucks.  The crank is a
> different story.
>
> WHAT SHOULD I DO???????
>
>
> Don Franck
> DJFranck@equilon.com
> 1971 Pantera #1777 /  1969 Mustang Mach 1
> Wk 713-346-3211 / Wk Fax  713-241-8234
> HM 281-856-8049 / Hm Fax  281-859-9531
> http://www.geocities.com/MotorCity/Downs/9415
> "Some people said it couldn't be done.  What they meant was "They couldn't
> do it".
>
>
>
>
>