3300dennisf Posted July 15, 2009 Share Posted July 15, 2009 have a 1984 rd tractor with low boost under a load(17lbs). just overhauled engine, replaced hoses pressure checked air to air. Smokes alot at start up (whitish blue) but fades after its warm. Could use any suggestions. Quote Link to comment https://www.bigmacktrucks.com/topic/10061-low-boost-on-1984-e6/ Share on other sites More sharing options...
fjh Posted July 16, 2009 Share Posted July 16, 2009 have a 1984 rd tractor with low boost under a load(17lbs). just overhauled engine, replaced hoses pressure checked air to air. Smokes alot at start up (whitish blue) but fades after its warm. Could use any suggestions.What HP is the engine?Did you set the timing?What does the fuel pump say on it for timing? Quote Link to comment https://www.bigmacktrucks.com/topic/10061-low-boost-on-1984-e6/#findComment-38128 Share on other sites More sharing options...
3300dennisf Posted July 16, 2009 Author Share Posted July 16, 2009 What HP is the engine?Did you set the timing?What does the fuel pump say on it for timing?Did an in frame rebuild, never took the fuel pump off, or messed with the timing.dont know exact hp, buts its 672cid Quote Link to comment https://www.bigmacktrucks.com/topic/10061-low-boost-on-1984-e6/#findComment-38136 Share on other sites More sharing options...
fjh Posted July 16, 2009 Share Posted July 16, 2009 Did an in frame rebuild, never took the fuel pump off, or messed with the timing.dont know exact hp, buts its 672cidDid you change pistons.It Sounds like you may have gotten the wrong pistons by what your discribing! Did you buy your parts by serial number??On the older engines there where two type of pistons I beleive.Barry may be able to help ya here I,m a wrench not a parts guy.Email Barry @watts and he may be able to straighten you out IF you have got the wrong pistons! Quote Link to comment https://www.bigmacktrucks.com/topic/10061-low-boost-on-1984-e6/#findComment-38148 Share on other sites More sharing options...
3300dennisf Posted July 17, 2009 Author Share Posted July 17, 2009 Did you change pistons.It Sounds like you may have gotten the wrong pistons by what your discribing! Did you buy your parts by serial number??On the older engines there where two type of pistons I beleive.Barry may be able to help ya here I,m a wrench not a parts guy.Email Barry @watts and he may be able to straighten you out IF you have got the wrong pistons!Yup, they're the rite pistons, guess i need to check my fuel pressure? Quote Link to comment https://www.bigmacktrucks.com/topic/10061-low-boost-on-1984-e6/#findComment-38180 Share on other sites More sharing options...
fjh Posted July 18, 2009 Share Posted July 18, 2009 Yup, they're the rite pistons, guess i need to check my fuel pressure? So yup thats another place to start there should be very little smoke thou I find that worrisome.15-24 psi would be good. Quote Link to comment https://www.bigmacktrucks.com/topic/10061-low-boost-on-1984-e6/#findComment-38196 Share on other sites More sharing options...
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