droppinbottom
Banned Member
- 728
- 5
- Nov 7, 2005
-
####,
Yukon_Canada
Well guys I have never had a idle problem untill recently. I installed dsm link and in the process I made sure to check my base timing, fuel pressure, boost leak, etc. I had never put a timing light on the motor since it was built because the builder informed me that with a dsm he never put a light on any of his motors for tuning. I was instructed to set desired boost level and then pull timing untill there is no knock.
After setting timing by a light I notice my idle is higher and when the motor is cold I get idle surge. It will initially idle at about 1900 for a few seconds and then it will hold 1500rpms and then blip down to about 1200 and rise to 1500 and keep repeating untill the motor is fully warm at which time it will idle steady at 1100 with all acc off and with lights on it will be about 950.
The problem I am having with adjusting the BISS is when I look at the BISS screw, there is a reddish substance in there that looks almost like red thread sealer got pored in it and it is all hard now. I can take a small screw driver and scrape away a little bit of the red substance but I dont think I will ever be able to get a screwdriver to adjust any screw.
Here is a pic but I don't know if it will help with what I am describing as it is still hard to see.
Thanks guys for the help and sorry if this post is not in the proper section as I was not positive on which area to post in.
After setting timing by a light I notice my idle is higher and when the motor is cold I get idle surge. It will initially idle at about 1900 for a few seconds and then it will hold 1500rpms and then blip down to about 1200 and rise to 1500 and keep repeating untill the motor is fully warm at which time it will idle steady at 1100 with all acc off and with lights on it will be about 950.
The problem I am having with adjusting the BISS is when I look at the BISS screw, there is a reddish substance in there that looks almost like red thread sealer got pored in it and it is all hard now. I can take a small screw driver and scrape away a little bit of the red substance but I dont think I will ever be able to get a screwdriver to adjust any screw.
Here is a pic but I don't know if it will help with what I am describing as it is still hard to see.
You must be logged in to view this image or video.
Thanks guys for the help and sorry if this post is not in the proper section as I was not positive on which area to post in.