taz90 Posted August 13, 2008 Share Posted August 13, 2008 hi iam slowly fitting a 3.9 efi into my 90 all is going well untill today. the engine is from a rrc with abs can any one tell me where the vacuum pipe from the servo goes many thanks terry Quote Link to comment Share on other sites More sharing options...
SteveRK Posted August 13, 2008 Share Posted August 13, 2008 Mine also has ABS so no vacuum servo so you will have a blanking bolt on the O/S of the plenum chamber - theres two blanking bolts on mine of differing diameter. I think the larger is for the servo to connect to with a suitable adapter. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted August 13, 2008 Share Posted August 13, 2008 They're a weird thread (I think it's a metric bolt thread rather than anything hydraulic or pneumatic) and the proper bit has an anti-backfire valve in it so you don't bugger your servo up if it misfires. Quote Link to comment Share on other sites More sharing options...
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