Outback Jack 6,352 Posted January 14, 2022 Hi all, recently been in the build of my xf recently pulled down the engine gave it a freshen up just basic rebuild, didn’t touch bottom end ect, crow cam stage 1,lifters,rockers,gaskets,water pump ect ect putting the motor back in only driven it about 50-100km I have noticed when car is on for about 15 -20 minutes oil pressure on dash flashes and when reves up goes up. Ect, when cold oil pressure is above half, I’ve tried different oils,moto craft filter ect, anyone have any insights, no knocking ect cheers How low is your idle? Try around 800-850. Might just not be spinning up enough, or air trapped.Did you prime the pump up before start up?That's where I would start, you got pressure it's just wandering Sent from my motorola edge 20 pro using Tapatalk 1 deankxf reacted to this Share this post Link to post Share on other sites
deankxf 20,288 Posted January 14, 2022 43 minutes ago, PapouGhia said: I have noticed when car is on for about 15 -20 minutes oil pressure on dash flashes and when reves up goes up. is that an XF GHIA CLUSTER? if so, it may be the common issue those clusters can have. before panicking about the pressure, fit an external oil gauge to be sure.. if that confirms the cluster is dodgy, you can dismantle the cluster and the 3 stacked circuit boards that are stacked on long pins(the pins go though the boards) you only need to move those boards less than 1mm and it will clean/scrape the tarnish off the connections. i never trust those clusters or the S pack ones, i've had 20 or so over 20yrs and i think only 3 of them didn't have issues relating to temp, battery, fuel or oil pressure flashing issues without actually having an issue. 1 gerg reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted January 15, 2022 Yeah like Dean said, verify with a separate gauge (a simple compressor gauge that goes to 200psi will work) that bullshit in doesn't equal bullshit out before stripping the engine, could be a dud sender as well. If you had it apart and the bearings (main, rod and cam) all looked ok, then oil pressure should be well within specs. Sent from my CPH1920 using Tapatalk 1 deankxf reacted to this Share this post Link to post Share on other sites
bear351c 10,270 Posted January 17, 2022 Did you replace the oil pump during the rebuild.?? Share this post Link to post Share on other sites
PapouGhia 33 Posted March 11, 2022 Didn’t touch oil pump left it on just cleaned it up with sump off! Haven’t had access to a pressure gauge as of yet, will be this weekend! Any other things to look out for, I swear oil pressure was fine before pulling out and freshed up, Share this post Link to post Share on other sites