[Vwdiesel] More Quantum Questions?

[brian gochnauer]

wow, guess I didn't try hard enough during the stretching phase or maybe I
just had an old 'dried out' seal
I wonder if we found a strong spring and put it under the special bolt, if
it could hold enough pressure on it.

HINT; ebay prothe is www.dieselvw.com and the prices are cheaper at the
website, probably because he doesn't have to pay ebay fees.


On 4/20/09, Erik Lane <eriklane at gmail.com> wrote:
>
> Sorry for the confusion.
>
> I successfully stretched my seal, which was also green, over the head and
> installed it with the head pulled back a *little* from the body - just
> enough to expose the sealing surface where that o-ring goes. I think the
> bolt in the middle is more to keep all the cam rollers in place - those were
> the first to drop out of place and require me to remove the pump from the
> engine on the first one I attempted.
>
> I got my seal kits every time I've done it from "prothe" on ebay and have
> been happy with them so far. I was careful and worked slowly when stretching
> the o-ring around the head, but there wasn't any time that I thought I was
> on the verge of breaking it. So maybe it's a different quality? I really
> don't know.
>
> Erik
>
> On Mon, Apr 20, 2009 at 5:26 AM, brian gochnauer <brian at gochnauer.net>wrote:
>
>>  The seal I had (green) could not be stretched over the head, meaning that
>> I
>> had to remove the head and the pump piston you've so cleverly kept in
>> place
>> will fall.
>> Yes the bolt in the center would solve the problem of keeping the govenor
>> lever engaged, until you remove the head, but I don't see how you'd ever
>> keep the springs lined up with their seats that stay in the pump, since
>> that
>> seat also rotates VERY freely.
>>
>> If you had a really stretchy seal, I definitely believe you could do it.
>>
>> Eric,
>> You successfully did which?
>> ... stretched the replacement seal over the head
>> ... completely removing the head of the pump while in the car and
>> reassembed
>> ... think it is possible, but was unsuccessful
>>
>> brian
>>
>>
>> On 4/19/09, Erik Lane <eriklane at gmail.com> wrote:
>> >
>> > Well, you can replace the O-ring while it's in the car, but you first
>> have
>> > to go out and buy a certain bolt that then threads in the hole in the
>> > middle
>> > of the high pressure head and you can very slowly and carefully back
>> some
>> > out while turning that one in to hold internals in place. It takes some
>> > care, and if done improperly can damage stuff, but it's not terribly
>> > difficult, just a little time consuming.
>> >
>> > I know it's possible, since I've done it, but I also messed it up the
>> first
>> > time I tried it and I had to get it out and on the bench to disassemble
>> and
>> > reassemble correctly. It's not too bad, but can be a little painstaking.
>> >
>> > All that said, if this guy knows what he's doing and is good like that,
>> I'd
>> > happily send him a pump next time I need it rebuilt!
>> >
>> > I'll be very interested in hearing what the results are!
>> >
>> > Erik
>> >
>> > On Sun, Apr 19, 2009 at 2:51 AM, William J Toensing
>> > <toensing at wildblue.net>wrote:
>> >
>> > > Well, no more right now but I am sure more will follow. What follows
>> will
>> > > be a progress report & report of an interesting phone conversion I
>> had.
>> > > I bought a used Quantum IP on eBay for $150 & had him forward it to a
>> > > repair person in Maryland whom I shall not name yet, for rebuilding,
>> > since I
>> > > have not received the pump yet. However, if my gut feeling is correct
>> > this
>> > > person may prove to be an excellent reliable inexpensive source to
>> have
>> > IPs
>> > > repaired. He told me he had finished the pump repair & the total cost
>> was
>> > > $165 including shipping.
>> > > I had a very interesting conversation with this person who told me he
>> was
>> > > retired from Chrysler Corp. & was involved in the engineering of the
>> > > Cummings diesel for the Dodge pickup, & was involved with the VE pump
>> > used
>> > > on the Dodge/Cummings. He said this was a Bosch designed pump very
>> > similar
>> > > to the Bosch VE pump used on VWs except the Dodge has 6 cylinders. He
>> > said
>> > > he was rather upset with some of these "Redneck Mechanics" who were
>> > messing
>> > > up the Cummings VE pumps for more power which he said compromised
>> engine
>> > > longevity in order to "peal rubber" & dropped mileage on a 5 speed
>> > > Dodge/Cummings from up to 27 MPG to 14 MPG. He also felt it was not
>> right
>> > > for some of these "Redneck Mechanics" to get $500 or more for an hours
>> > work
>> > > rebuilding VW IP pumps, often improperly.
>> > > He also said you can't replace the big "O" ring at the rear of the IP
>> > while
>> > > on the car. It has to be off the car & in a vertical position. So, I
>> > think I
>> > > goofed in trying to replace the rear IP "O" ring while on the Quantum.
>> I
>> > > will also have a properly rebuilt & re sealed IP out of this. I will
>> then
>> > > have that one rebuilt & possibly use it on the '86 Jetta & go for the
>> > turbo
>> > > kit for it.
>> > > Thanks to all who have provided tips so far & hope this long posting
>> is
>> > of
>> > > interest to others.
>> > > Bill Toensing, Nevada City, CA
>> > >
>> > > _______________________________________________
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>> > >
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>
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