They are lookin like Extra fuel rail bolts.

This setup is a mess

 

THey don't make grade 5, 8 etc in metric.

Metric ratings are 8.8 , 10.9 and then stainless.
Only the heavy duty parts (tranny to enginge, mounts) are grade 10.9 which have the same load rating as a grade 8 (150k psi)

8.8 is pretty much the same as a grade 5 at 120k psi strength.

 

I wouldn't have any doubt putting 8.8 in and mounting the blower. Heck ive used these things to bolt two chains together and pull trucks.

You aren't going to break a M10 8.8 without some serious pressure.

 

Go to an HVAC supply & get you some foaming coil cleaner. Preferably Nu-Brite blue. Dilute it 3 parts water to 1 part cleaner & spray all over that I/C. Don't leave it for more than a few minutes and rinse with lots of fresh water. Will look brand new. I use it on aluminum, copper & steel coils at all my restaurants. Works great.

 

Thanks. The whole setup is filthy. The blower also make a "strange" noise. Doesn't sound like a bearing issue so I dunno

 

http://www.k-tbolt.com/bolt_chart.html

 

Pull the snout off and check the coupler. I'm assuming its the same as my wife's Eaton on her GTP. Also check the snout bearings. Make sure that baby is right before you sling it on there. Damn sure don't wanna do it twice.

 

So it would take about 33000 lbs to shear a grade 8 bolt 1/2 bolt. Pulling it about your looking in the 100k's

 

Mix 1 quart (.946 liter) of water with 1 tbsp. (14.3 grams) 5 percent acid white vinegar or lemon juice. Mix as much of this solution as necessary to fill the pot or pan.

Heat it lightly and woo hoo. its clean. Then use gas/kerosene to help.

Crazy, but it works.

 

Gonna need a big *** pot to fit all that in there. LOL. Vinegar works because its a base and breaks down the materials chemically. The heats helps speed the process. Coil cleaner is also a base, just a lot stronger. Either method will work Jferg. Ibd's would definitely be cheaper than mine. Nu-brite costs about $16 a gallon.