yardpro

I did a search, but came up with a bigillion pages, so i would ask this question...


yesterday i started to hear what sounded like a hampster wheel chirping under the hood...
I figured it was an alternator or ac compressor bearing failing, as the wp/tb is pretty new (3 years old, but only 5-6K miles on it)...

I took out the mechanics stethescope today and checked the housings on all the under hood compinets... and i think it is the WP failing... the chirping is loudest at the wp location...

so... my question is....
what WP to use, and I am assuming that i should change the belt while i am at it...
I read about a rebuildable WP someone had designed... i am also looking at adding a pk tensioner...

This is a bummer as i just ordered my X pipe, so some of my shark kitty is depleted, and i need this thing up and running before SITM...

I am asking if anyone has any of the special tools they could loan me to do this as my budget will be stretched... I know there is the 32v tool, and i think a flywheel holder, or something like that?

thanks for any feedback..

ammonman

There are only two pumps I will consider using in my 928: a new Lasso with the plastic impeller or one of Ed's Engine Guardian water pumps with the drive system improvements. I stay clear of the many rebuilt WP's from fleabay and generic parts houses. Too many folks have had problems up to and including engine failure traced back to a poorly rebuilt WP. Before you assume WP I would get the timing covers off and turn the engine by hand. You may have one or several idlers going south. I have a flywheel lock and PK32VR cam timing tool I can loan for the cost of shipping both ways.

Mike

ROG100

What Mike said

nc_growler

+1 Mike said.

If you are going in to work on the water pump, definitely have dwayne's write up and photo rich thread on hand.

I have flywheel lock, TB tension checking tool, deep socket for crank, etc. and could get them there to you pretty quick from Raleigh area.

I went with Engine Guardian water pump, but didn't replace the stock tensioner (yet).

If you end up ordering a pump, you may want to go ahead and order all new WP bolts at the same time. I have a spare gasket I can send down with the tools.

People recommend taking a look at everything else while you are in there... And I think that makes good sense, but if the penny jar is running on empty, you may just want to take really good notes for the next time.

I found you can rent expensive tools from Advance Auto Parts instead of buying them. That took some tool $$ sting out of the job.

Stephen

Bertrand Daoust

Here is Ed's website:

http://www.perfexmfg.com/

And some more info:

https://rennlist.com/forums/928-foru...ics-added.html

Very nice product,

yardpro

thanks guy, ya'll rock..

Sorry i have not been back been back on this thread sooner, but we went to Busch gardens this weekend...

While there I missed a red 928 here at the coast... a friend saw it..

I'll be pulling the covers off this week. Thanks for all the loaner tool offers, i wold love to take ya'll up on it. As soon as i find out what is going on in there i'll post back, or pm someone..

again, thanks for the offers.......

yardpro

i am looking at going with the pktensioner

will i still need the belt tension tool if i go this route?

I am starting on the job tonight, car went into the garage today at lunch, and disassembly began.

It has been a while since i have had to break into my tool box, but i think i have all the needed tools...

I used to work on motocross race bikes, doing full teardowns, blueprinting and rebuilds, as well as suspension revalving/seals/springs... I am thinking that this will not be too difficult.

RFJ

No.best Ray

jeff spahn

Just print out Dwayne's write up. It is a great photo reference for the little things that make the job go much smoother. Porsche is really good at having little things take extra time.

yardpro

so far so good.... all covers and ancillary items off.. just need to remove the balancer and pullies..

job was held up by discovery that i need new cam gears.

Mrmerlin

if you need new cam gears chances are good its time to replace all the gears,
check the oil pump gear with a magnet if it wont stick then its the older aluminum gear and should be replaced.
NOTE also remove the 1mm spacer behind it before fitting the steel gear.

The timing belt drive gear is also usually cupped or worn in the middle and can be confirmed with a straight edge placed across the gear face if its not smooth replace it. If your going to replace the oil pump O ring (a good idea)
Note the dots on the faces of the gears they should face the block, also note the edge of the outer gear one side has a small bevel this MUST face to the front of the car away from the engine or the pump will seize.
I suggest use STP when refitting the oil pump gears fill the gears so they are lubed as well as the shaft ,
this will guarantee that you will have oil pressure , no need to prime the engine by spinning the pump prior to belt installation

also if you can, use Dow Corning 111 on the O ring this will keep it soft and ease installation, I have found many cut oil pump O rings, due to then not being slippery enough to slide into the bore

yardpro

thanks for the advise merlin...

I was planning on inspecting all the gears and idlers while i have everything out.
I just bought an x pipe, and had the Jag in for an $800.00 driveshaft service....
so my budget will be less than $1500.00.