my 74 mgb no longer has the air pump or any of the emissions connected(shame on me!). the original carbs that were on it were HIF's. the previous owner changed them to HS4's. so i have HS4's and no emission components to deal with. i have the stock 25D distributor on the 18V engine. which timing application should i use in the bentley manual?
i was wondering since the timing for my "B"
is listed as 11 deg btdc at 1500rpm vacuum disconnected, but that applies to the engine with hif's and emissions( 18V 73-74). the hs'4 engines (18V 71-72)timing is listed as either 15,16 or 20 deg btdc at 1500 rpm. it also lists in addition to the 18v engine, 18gk,18gf,and 18gh engines. or does it matter? did the air pump and emissions
play a part in the timing setting?
also, how would one adjust/set the retard/advance for the vacuum advance? cant seem to find that info in the bentley. if you can, let me know what page its on. thanks
[ 04-29-2003: Message edited by: XJRpilot ]</p>
i was wondering since the timing for my "B"
is listed as 11 deg btdc at 1500rpm vacuum disconnected, but that applies to the engine with hif's and emissions( 18V 73-74). the hs'4 engines (18V 71-72)timing is listed as either 15,16 or 20 deg btdc at 1500 rpm. it also lists in addition to the 18v engine, 18gk,18gf,and 18gh engines. or does it matter? did the air pump and emissions
play a part in the timing setting?
also, how would one adjust/set the retard/advance for the vacuum advance? cant seem to find that info in the bentley. if you can, let me know what page its on. thanks
[ 04-29-2003: Message edited by: XJRpilot ]</p>