964 Cam-timing questions

[ecm911]

Hi guys,
My 964 is leaking from the crankshaft seal and the cam towers - so I am thinking about this project and have a few questions.

First off - special tools needed-

Do you need to use the special tool 9290 (counter-holding wrench) to remove the head bolt and more importantly is possible to counter hold w/o this special tool and get the proper torque (170 ft lbs)? I will get the special tool/bolt 9285 to remove the pulley.

Can the cam-timing be done w/o the special Auxiliary chain tensioner (9401) this are very very expensive? Can you use the actual chain tensioners?

Can these be rented somewhere?

I have some of the other tools needed or will purchase hem - cam sprocket wrench -9191, dial gauge & holder, feeler gauge.

Any advise or words or wisdom are welcome!

Thanks all.
Earl

[axl911]

Earl,

1. You definitely need the 9290 tool to remove, and more importantly, tighten the bolt.

As for the chain tensioner 9401, you can use a generic steering wheel puller. The actual chain tensioner is tooo weak.

See my rebuild page for pics.

964 3.6 Engine Top End

--
anthony

[ecm911]

anthony,

Thanks for the reply.
And thats a great thread - I have it saved on my computer - it already has helped!!!

Any steering wheel puller will do?

Also any idea what the cost of the 9290 is?

Appreciate it!

earl

[axl911]

I think any steering wheel puller set would do. I would go to Autozone and look at the set to see if it would fit. Take your chain tensioner with you or do some measurements.

The 9290 tool is about $100. Pelican Parts sell them. I bought it (and most of my other rebuild tools/materials) from PP to support Wayne and the site.

You can easily resell the tool and recoup most of of the cost.

[ecm911]

Anthony,
thanks for the info!

Have a quick question - it appears the cam tower weep/leak is from the left (top) tensioner cover.

I will confirm this is the only place , but if so can I pull the tensioner and replace the gasket w/o distrubing the cam timing?

TIA,

Earl

[iangray100]

Hi, Does anyone know if the 9290 is the same tool for the 911 ( pre 964 ) as I can't find the 9290 on PP site?

I want the cam holding tool for a 964 ?

thanks
Ian