Pulled out carb and intake to do a rebuild and lost all my photos. Trying to put things back but having a real hard time. Not sure where all these hoses go and there's lots. I have an S83P with EF-CS engine in a 1993 jumbo. Anybody got some photos of the layout they could post. I would really appreciate any help I can get. Thanks in advance. Jody
Thanks ttc. Went to the site and registered. They have parts but could not find any pictures of vacuum lines. Did I miss something?? I'm still at a loss of where these lines go. Jody
Hi again. Thanks so much for the link. There are a lot of similarities but I don't think it's the right one. I'm not sure where you got that from on the site as I couldn't get anything close to that. My truck is a v-S83P - JTDW With the EF-CS engine. S83P - 128788 chassis Got anything like that? Even a few photos would get me started. Thanks again. Jody
I know what you mean. I rebuilt my S83P Jumbo Engine ( EF-CS ) last year, and without photos, I would never have figured it out. If you can send me your e-mail address, I will send you the photos. Choke timing on the carb is critical. Mine is close, but still not correct. It starts and runs great, but still a bit rich all the time. The vacuum tree is also important. Mine was broken, so a new one was needed, and I also replaced all of the vacuum hoses - you will need @ 20 feet . While I was at it, I also put a hose on the distributor cap vent and routed it into the intake , and a hose and filter on the distributor body, routed to a nice dry place up under the seat, so It now circulates nice dry, clean air thru the cap - no more condensation. Cheers Bob Jonah
Hi guys. I'm still at a loss here trying to put together this puzzle. Any help would be greatly appreciated. Jody
I had purchased a manual but it didn't cover the CS engine and really wasn't worth anything close to what I paid for it. I have no idea where to find anything that could help me out except this form. Always appreciate the help. Thanks Jody
Hi Bob Checked my email and even my junk email and there is nothing there. Can you please try again. Looking forward to getting my unit running again soon. Thanks Jody
Just wanted to say a big thank you to Bob for the photos. Truck is running finally and those pictures and diagrams from Bob made it possible. Great forum and great help. Thanks again
Bob, I'm a 93 S83P EF-CS owner as well and just started tackling the timing belt and water pump. Carb runs good but auto choke spring is broken and I plan to have to rebuild the carb at some point. Could you send your pictures my way as well? My email is sjpaschal@gmail.com Also, have any of you had any experience with the timing belt/water pump on the EF-CS? I see the timing marks and I believe I know where the corresponding marks on the case are but I would appreciate some confirmation. Also, does anyone know for sure if its an interference engine? I assume it is but have heard so many things on the forums I'm not sure. Plan to do a compression test after new belt to be sure but any advice would be much appreciated. Thank you! Steve
Bob, I have a 93' S83P Jumbo and plan to do an entire engine rebuild at some point. I had to replace the valves when timing belt snapped so the top end is essentially brand new. Want to to rings and get the carb and intake all refreshed but the vac lines terrify me. My email is sjpaschal@gmail.com if you would be willing to send pics you are talking about, I would really appreciate it! Thanks Bob.
Bob, I hate to ask and bother you, but I sure could use those pictures as well. My s83p runs pretty well, but the lines are rough and I want to ensure they are all correct etc.. thanks civdiv2002@yahoo.com Jesse
Something that I have never seen discussed, is that the distributor has two ( 2 ) vacuum hoses going to it. One is vacuum advance, and the other is vacuum retard. I do not know why or how they do it. But, I do know that if they are reversed, the engine will not accelerate properly, and it will not start and run correctly. Can anybody add to this ?
I think, the one closest to the distributor body is teh vacuum advance, and the one on the outside is the vacuum retard. The advance is direct to manifold, and the retard is ported off the carburetor.
Just gave it a bit of thought: I posted a thread, “S110 w/ EF-NS Vacuum Diagram” last week, which included scans from the manual I have. The vacuum diagram shows the lines to the distributor, and you can trace which one goes where.