Hi,

unfortunately connecting rod bolt seems to be stripped.
70% sure that the bolt itself is damaged and not only nut, but to remove the nut will have to cut it.

my options are: buying a used rod with bolts and nuts and try to use them;
try to buy new oem bolts (2) and replace them and measure the clearance with plastigauge to see if it fits.


the question is: how to properly remove/ install these bolts?
and is there a place to buy these arp bolts for 924 2.0?

 

Update: just ordered 2 bolts with nuts from Porsche dealer

 

Be aware that you will likely need to have the rods resized/honed slightly when installing new bolts. This is a job for a machine shop

 

They were just back from machine shop with old bolts got the info that if replacing with oem bolts machining may not be necessary, if everything is round and sits fine. Machine shop needs only rod and bolts or the crankshaft delivered as well to machine the rod?

was planning to just replace the bolts with hammer and check clearance with plastigauge and visually inspect the roundness and spaces

 

What you are proposing is breaking some basic rules of engine building. I recommend utilizing an automotive machine shop for this repair to increase chances of success.

 

Plastigage, although good, is not precise enough to do this job. You need to be using inside micrometers that read into tenths of thousdanths . I agree with others. These specialized tools are best found in an automotive machine shop with people who are used to using them. Just my two cents.

 

You can check for size and roundness with a dial bore gauge more accurately than with an inside mic or a snap gauge.
Numbers smaller than .001"... invisible to the eye.
Just have the machine shop do that job. It shouldn't be too expensive.
Cheap insurance.