theakerstwo Posted June 4, 2022 Share Posted June 4, 2022 I can not find my E6 four valve tune up manual.I am needing to know what the pump timing is and its a 89 350. 18 degrees comes to mind but i cant guess at that. This is a robert Bosch pump. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/ Share on other sites More sharing options...
fjh Posted June 4, 2022 Share Posted June 4, 2022 Glenn as you know it will defiantly run fine at at 18 ! Why are you checking it? Are you having issues? I don't have my manual either so I can be precise ! I how ever noticed that over the years the timing changed as the years past for emission reasons I believe ! I seen em set anywhere from 17 -22 !Depending on pumps ambac or robby ! Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499269 Share on other sites More sharing options...
Joey Mack Posted June 4, 2022 Share Posted June 4, 2022 Glenn, I flipped through my E-6 4 valve book 3 times, and cant find the chart that has the settings. I know this isnt a guessing game, I just did 2 this year with Ambach pumps and one was (18 degrees) and the other was (19 degrees).. The last couple E-7's I did were Robert Bosch and they were (5 degrees).. I will keep looking.. all I have are E-7 tune up books... good luck, jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499272 Share on other sites More sharing options...
Joey Mack Posted June 4, 2022 Share Posted June 4, 2022 My guess is. it is not stamped on the data plate on the pump or valve cover..? Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499273 Share on other sites More sharing options...
Joey Mack Posted June 4, 2022 Share Posted June 4, 2022 OK, the closest I got was in my '94 E-7 book, the 350 with Robert Bosch is set to 9.5 degree's.. I guess I wont be of any help here.. Sorry Glenn... Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499275 Share on other sites More sharing options...
JoeH Posted June 4, 2022 Share Posted June 4, 2022 From the Google web. Ad said 1989, looks like engine are says 1985? Not sure which pump it has, but someone more familiar can figure it out. Says 20 degrees. E6, 350 Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499283 Share on other sites More sharing options...
fjh Posted June 4, 2022 Share Posted June 4, 2022 5 minutes ago, JoeH said: From the Google web. Ad said 1989, looks like engine are says 1985? Not sure which pump it has, but someone more familiar can figure it out. Says 20 degrees. E6, 350 Joe the timing changes by year and model I think ? Its mostly emissions related I think ! I noticed over the years as time went on the timing went up on degree a year for the same HP engine up to 22 Just seemed like it anyway!? Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499284 Share on other sites More sharing options...
Joey Mack Posted June 4, 2022 Share Posted June 4, 2022 Thank's "F".. I didnt do enough pump work, before I was spoon fed the E-Tech.. I always refer to my books, if I have the right book. (Joe H,,, thats an Ambach pump..) jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499286 Share on other sites More sharing options...
theakerstwo Posted June 4, 2022 Author Share Posted June 4, 2022 I am helping a friend change blocks. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499300 Share on other sites More sharing options...
Steve L Posted June 6, 2022 Share Posted June 6, 2022 I set all our manual E6 350 4V at 21 deg regardless or year, the auto advance/computer engines are much lower. Quote Link to comment https://www.bigmacktrucks.com/topic/69899-pump-timing/#findComment-499453 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.