Cam Alignment on a 960

kluhrm123 · Post by **kluhrm123** » 22 Jul 2013, 16:24

So remove the top cover- then with cover off turn the crank over and see how it turns over? If freely all is good mover forward with sealng up cover if I have obstruction with cover off it is time to remove the rest? (I have a questions about removal but will wait). Mike

Post by **precopster** » 22 Jul 2013, 19:00

Yes turn by hand first feeling for obstruction. If the crank stops that will be a bent valve

If it rotates freely you could do a comprssion test without valve operation. It will still yield numbers over 120psi if OK

kluhrm123 · Post by **kluhrm123** » 22 Jul 2013, 19:44

Thanks for that super info. I have a junk yard in San Antonio. There are a couple of 960s there. As I get all my thoughts together I wanted to ask: would a 96, 97 and 98 (ie a 960 with S90's)? Thanks Mike

Post by **precopster** » 23 Jul 2013, 00:30

Sorry the question was? Perhaps your mind was going quicker than your fingers....

kluhrm123 · Post by **kluhrm123** » 23 Jul 2013, 06:53

If I pick up a head from a junk yard which cars will work as a swap? Over here there seems to be more 96, 97 and 98 (S90) cars than the 960s. I am only trying to know what I might be up against (if I have bent valves which it sounds like there is a strong chance of that). Mike

Post by **precopster** » 23 Jul 2013, 07:12

The answer from memory is that all 960/V90/S90 heads are identical. There are differences in the timing systems and size of cam sprockets used. Blocks were changed only with regard to timing systems with '92 &'93 running skinny 21mm belts, '94 running a 23mm &'95 plus going to a massive 28mm belt.

Also the pre-95 cams actually produce more power with 205hp.

I'm not certain which years run EGR as this wasn't on my '92 when I owned it.

kluhrm123 · Post by **kluhrm123** » 23 Jul 2013, 16:49

Thanks. I will keep you posted as I move along. I will be out of town for a few days so the car will have to sit until I get some time. Mike

kluhrm123 · Post by **kluhrm123** » 28 Jul 2013, 19:19

I have the rear CPSensor and other side; taken off all 47? bolts off and am now in a position to pop off the top half cam shaft cover. I did some tapping all around and (understanding it is aluminum) am not having much luck. I must be missing something. I would think from looking at it that prying is not the right answer. Can you give me a pointer? Thanks Mike

Post by **precopster** » 28 Jul 2013, 22:18

It is a VERY tough bond between the cam cover and head. A balance between shock and gentle care of the aluminium must be struck. The separation lugs are the most solid points to hit, hitting with a soft mallet didn't do it for me on any of my white-blocks. Prying on the separation lugs also proved fruitless regardless of how many combinations of levers I used.

I used a steel hammer and tried to hit using with the largest surface area I could find to avoid breaking the cover. It is a nerve racking experience. If anyone has suggestions for the OP now is the time....

bluewater · Post by **bluewater** » 07 Nov 2013, 20:45

kluhrm123 wrote:I have the rear CPSensor and other side; taken off all 47? bolts off and am now in a position to pop off the top half cam shaft cover. I did some tapping all around and (understanding it is aluminum) am not having much luck. I must be missing something. I would think from looking at it that prying is not the right answer. Can you give me a pointer? Thanks Mike

Mike, any update on your engine? I have a similar situation and interest to know how you fix this problem.

Cam Alignment on a 960

Re: Cam Alignment on a 960