Oil Pressure build-up in Serp Engine?
Discussion
Its better to reduce compression by removing the plugs 
Pulling the fuel pump relay is also advised..
Don't overdo it, it's quite demanding on the starter for long periods.
Probably the reason many of us have investigated / implemented oil accumulators, take offs to rig up external pumps etc.....
Pulling the fuel pump relay is also advised..Don't overdo it, it's quite demanding on the starter for long periods.
Probably the reason many of us have investigated / implemented oil accumulators, take offs to rig up external pumps etc.....
Just start it after the lay-up and run at 2k approx(taking the loading off the cam gear)the oil pressure will pop up straight away,dont just let it fire and idle straight away(bad for the Cam train)if you crank & crank with no plugs fitted till you have oil pressure all you will achieve is taking possibly thousands of miles off your dry cam & followers all IMHO of course.
Edited by That Daddy on Thursday 18th December 15:11
spend said:
Follower digs into the ramp until its all up & spinning nicely(follower rotates as well), not forgetting it also takes a bit for the cam lobes & followers to get oiled at startup.
getting back to what Uncle Fester said though.....2K is not a magic figure you just need to run up onto fast idle 1800rpm up to 2500rpm approx would also be fine i guess,just dont let it sit at idle for the 1st couple of minutes after long periods of non use at 1st startup 
Cam & follower wear is inevitable but you dont want to give it a help in hand if you can help it.Edited by That Daddy on Thursday 18th December 17:40
That Daddy said:
spend said:
Follower digs into the ramp until its all up & spinning nicely(follower rotates as well), not forgetting it also takes a bit for the cam lobes & followers to get oiled at startup.
getting back to what Uncle Fester said though.....2K is not a magic figure you just need to run up onto fast idle 1800rpm up to 2500rpm approx would also be fine i guess,just dont let it sit at idle for the 1st couple of minutes after long periods of non use at 1st startup Cam & follower wear is inevitable but you dont want to give it a help in hand if you can help it.Edited by That Daddy on Thursday 18th December 17:40
Bluebottle said:
the other reason is that the cam followers wont spin below 1500rpm so you want the revs above that so you don't get uneven wear on the followers stopping them from spinning which will in turn wear the cam out quicker....or so I was told by someone more learned than me
Ah ha! is that why you should not idle them for prolonged periods? Just spent the day at North Weald air field pissing about in the ice and was not happy with the significant time i was sat about idling. Must have idled for over 3 hours that day!spend said:
That Daddy said:
spend said:
Follower digs into the ramp until its all up & spinning nicely(follower rotates as well), not forgetting it also takes a bit for the cam lobes & followers to get oiled at startup.
getting back to what Uncle Fester said though.....2K is not a magic figure you just need to run up onto fast idle 1800rpm up to 2500rpm approx would also be fine i guess,just dont let it sit at idle for the 1st couple of minutes after long periods of non use at 1st startup Cam & follower wear is inevitable but you dont want to give it a help in hand if you can help it.Edited by That Daddy on Thursday 18th December 17:40
k off tt
That Daddy said:
spend said:
That Daddy said:
If I could get a C&G in English I wonder if that would make me a 'winner'
but seeing as C&G aint worth a rub 
spend said:
That Daddy said:
spend said:
That Daddy said:
If I could get a C&G in English I wonder if that would make me a 'winner'
but seeing as C&G aint worth a rub 
That Daddy said:
spend said:
That Daddy said:
spend said:
That Daddy said:
If I could get a C&G in English I wonder if that would make me a 'winner'
but seeing as C&G aint worth a rub 
and i promise i wont swear anymore,besides i dont want to upset the mods Gassing Station | Chimaera | Top of Page | What's New | My Stuff