David,
Thanks for a definitive answer. I plan to pull all the stuff under the filter
access plate and clean it up. Unfortunately, because the exhaust pipe has to be
on my car pulled to get to it, and due to time constraints, I didn't clean the
internal filter when I cleaned the gauze filter a couple of weeks ago. The guy
who did my rebuild suggested that the relief valve could be hanging up on small
piece of trash that's floating around in there. I think this is likely the case
becuse I have not experienced the problem again since I wrote last Wed. I don't
understand how either the gauze (metal) screen or internal filter doesn't pick
it up, though.
Much obliged to all who offered suggestions.
D.
'78 Spit
FM90204UO
David Greed wrote:
> Dee and others
>
> The problem is the oil filters within the O/D unit. I had exactly the same
> problem with my 2500S with J type O/D and cleaning the filters fixed the
> problem.
>
> If the problem were a faulty switch, then you will find that it will not
> engage - I also had that problem too, but later on...
>
> David Greed
> 1979 2500S
>
>
> >John,
> >
> >Thanks. Good advice, but when I turn the switch off there is an instant
> >response from the o/d. It doesn't go out of o/d properly, but it does show
> >signs of wanting to do something. I have to believe it's something in the
> o/d
> >itself, in fact, it almost acts like it's half way in o/d, if that makes
> >sense. I usually see about a 750 rpm difference between off and on in 4th
> >gear. Now, it almost seems like it only wants to increase in rpms by about
> >400 when the switch is turned off, instead of the typical 750.
> >
> >You're right, though. That is a cheesy switch. I'll look around and see
> if I
> >can cobble something together as a test. And I'll give it a look-see this
> >evening.
> >
> >Thanks again,
> >
> >D.
> >
> >
> >John Peacock wrote:
> >
> >> Dee
> >>
> >> It is probably the switch and not the trans. I had the same problem with
> a
> >> 78 Spit. I ended up relocating the switch to the dash after blowing
> three
> >> switches. Try tinkering with the switch first, wiggle it and move it
> >> around and see if this helps. Good Luck
> >>
> >> John Peacock
> >> 80 TR8
> >> 80 TR7 Spider 16v project
> >> former owner of 5 Spits, or maybe it was 4
--
Dee Jackson
Gilbarco Inc. Greensboro NC
Ph 910-547-5007 Fax 910-547-5234 email dee_jackson@gilbarco.com
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