Last week, I posted a question w/regards to the gap on the spark plugs been crazy from ~ 0.032 to 0.038". Yesterday, I received the new Volvo plugs and the gap was just as crazy as the plugs in the car. It appears that the previous plugs were install out the box with out checking the gap. Check your gap when installing single electrode plugs.

I removed the throttle plate for cleaning and notice 2 items.
1. The gasket for the body is the same for turbos and none turbo.
2. The throttle plate as that plastic insert that I removed from a 93 850 sedan. I install a plate from a 960 and the throttle response was much better with out it.
I thought about doing the same to this car but the plate has a much smaller diameter. What will be a good replacement for doing this exchange???

I also need some information with regards to the proper procedure for draining or cleaning the inter cooler?????

Speedy

Sloppy work... it only take a few minutes to check the gap on new plugs. AND, if plugs are ever taken out for some reason, the gaps whould always be checked and the plugs cleaned.

I would leave the throttle plate alone, except for cleaning.

Cleaning out the intercooler:

Use warm, soapy water. I have use dish cleaning soap, about 2 cap fulls per gallon. With the intercooler hoses off and already cleaned, cover the bottom hole with duct tape. Fill the intercooler with the warm soapy water and let stand for 5 minutes. Remove the duct tape and flush with a garden hose. You might want to cover the bottom hole by hand several times to make sure all of the soap is purged.
Don't forget to also clean all of the piping. And be careful of the PCT nipple on the pipe infront of the turbo, it is fragile and will need cleaning.

!Make sure all of the intercooler connections are tight before giving it full boost! If not, you might hear an explosion and total loss of power. It will idle fine.

Klaus
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The more I learn, the more I forget. So why learn?

Klaus,
Thanks for the info with regards to the inter cooler. I have one more quick question. The brake lines for the calipers are cracking and was thinking to upgrade to the stainless steel braided line from IPD. Is this a good choice or is there a better choice??? I am not sure what the R-models have in them!!!

Thanks amigo,

Speedy

ALL Volvos have the silly rubber brake lines. Go with the SS lines when replacing. Small surface cracks are normal, but the lines should be replaced after 10 years, just for peace of mind.

Klaus
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The more I learn, the more I forget. So why learn?