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Section Topic Details Includes Attachments Notify me of any new messages to this topic.  Replies  Last
 Cummins:QSM Series -  QSM Gear Cooler Zinc VIEW/REPLY Includes Attachments Notify me of any new messages to this topic. 1  Fri Nov 20 09 10:09 PM
Today
08:18 PM
Forums Moderator Tony Athens   I sure hope nobody is so ignorant that they buy one of these.. It´s got to be a computer glitch as it seems the price is off one decimal.. A standard West Marine zinc works perfect for about 1/10 .....
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1 Response....
Today
10:09 PM
#1 Level-1 Member Tomas Kempe   Tony Interesting: I use a 2" zincs for engine and gear cooler, gear cooler zinc(s) going faster. You reveal a Cummins trade secret with a one inch zinc since I had no way of knowing, the zincs ha.....

 Cummins:QSM Series -  Qsm 11 VIEW/REPLY   Notify me of any new messages to this topic. 5  Mon Nov 16 09 2:11 PM
Nov 15 2009
06:39 PM
Level-1 Member Zimbo   New to this great site have learnt a great deal. Question does anyone know the difference between a QSM 11 core/block and an M11 block. I have checked the dealership the part numbers differ by the .....
5 Responses....
Nov 15 2009
06:52 PM
#1 Forums Moderator Tony Athens   I am sure that you are going to need a serial number of your engine before anyone can tell you if a some generic M-11 block will work--Remember, the first M-11´s were actually mechanical--they go back.....
Nov 15 2009
08:06 PM
#2 Level-1 Member Zimbo   Thanks Tony Have recently purchased a 635 Hp DOM 1999 presently assesing requirements, i need a second engine and was considerind marinizing an M11 is this an option? I know the heads are different a.....
Nov 16 2009
09:56 AM
#3 Level-3 Member Paul Foulston   Zimbo, Not sure what you mean by a QSM11 635 "DOM"? Now the complicated bit. M11 block did not change from the point of view of bearings etc and is totally backwards compatible to L10 .....
Nov 16 2009
01:28 PM
#4 Level-1 Member Zimbo   Thanks Paul Will have to look around for a marine block then good enough reason to me by DOM I meant date of manufacture.Not sure "backwards and forwards compatable" means. The block part .....
Nov 16 2009
02:11 PM
#5 Level-3 Member Paul Foulston   Zimbo, In my book there is no such thing as a "marine block" Jamestown would never accept such a radical difference. I would be happy to use ISM automotive block without any issues. Ou.....

 Cummins:QSM Series -  Cleaning Heat Exchanger And Aftercooler With Out Removeing From Engine VIEW/REPLY   Notify me of any new messages to this topic. 1  Wed Nov 11 09 7:03 PM
Nov 11 2009
06:17 PM
Level-1 Member Ahidave   Is there a method or way to flush the salt water cooling system without removeimg all of the plumbing coolers and so on?i l think that it needs to be done.any help woud save a lot of time and be apper.....
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 Cummins:QSM Series -  Oil Pan Heater And Oil Pressure At Start Up VIEW/REPLY   Notify me of any new messages to this topic. 3  Tue Nov 10 09 11:52 PM
Nov 9 2009
09:56 PM
Level-1 Member Tomas Kempe   Oil temperature and lubrication at start up. Now that the temperature is falling I have a question about the oil pressure at start up below 40F. If I do not use a pan heater the oil pressure show abou.....
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 Cummins:QSM Series -  Won´t advance past 1,100 in gear VIEW/REPLY   Notify me of any new messages to this topic. 12  Mon Nov 9 09 5:13 PM
Nov 2 2009
04:02 PM
Level-1 Member Vinny   I went to help move a friends 50´ SeaRay yesterday. The boat is 5 years old and it is powered by twin 2004 QSM11´s. We started up the engines and idled out of the marina. As he powered up the port .....
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 Cummins:QSM Series -  Coolant Increase VIEW/REPLY   Notify me of any new messages to this topic. 3  Mon Nov 9 09 2:03 AM
Nov 2 2009
05:32 AM
Guest Brownie   I hope someone can cast some light on a wierd situation. Firstly I have a Cummins QSM11-455 in a trawler design. I left the boat for 10 days while I returned home and when I got back the coolant.....
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 Cummins:QSM Series -  Qsm VIEW/REPLY Includes Attachments Notify me of any new messages to this topic. 1  Mon Nov 9 09 12:53 AM
Nov 8 2009
11:32 PM
Forums Moderator Tony Athens   I just serviced my first set of aftercoolers that were installed on a pair of "wet" keel cooled QSM´s in June 2005.I´ve been waiting for this so I could see how well a "salt water".....
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 Cummins:QSM Series -  QSM-11, White smoke VIEW/REPLY Includes Attachments Notify me of any new messages to this topic. 19  Sun Nov 8 09 1:40 AM
Aug 28 2009
03:16 PM
Level-1 Member Doug Edgerton   Have a pair of QSM-11´s, 635 hp. with about a 1000 hours on them. Port engine has started to smoke at higher rpm´s, 1600 and up. It also appears to be using a bit more fuel then the starboard engine. .....
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 Cummins:QSM Series -  QSM-11 Starter Bolt Removal Problem,Looking for ideas VIEW/REPLY   Notify me of any new messages to this topic. 2  Sun Nov 1 09 2:00 AM
Oct 31 2009
12:58 AM
Level-2 Member Tiara Mike   Hi there, My port Engine is a QSM-11 and I am cannot get 2 starter bolts off, Starter is up against stringer with very little room, Bolt is a 5/8 12 point Breaker bar wont fit, can get a box end wr.....
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 Cummins:QSM Series -  Engine hesitation 660hp-2004 production VIEW/REPLY   Notify me of any new messages to this topic. 0  Thu Oct 15 09 1:24 AM
Oct 15 2009
01:24 AM
Level-1 Member Carman   The engine at various rpm´s has a hesitation. The rpms drop for a spit second then return to the throttle setting. This can happen at low rpms and up to 1700-I didn´t go any higher. Fuel is clean-it f.....
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 Cummins:QSM Series -  Basic Package Display VIEW/REPLY   Notify me of any new messages to this topic. 4  Thu Oct 8 09 1:00 AM
Oct 4 2009
11:52 PM
Level-1 Member Spellbound   Technician came to boat checking a Low coolant level warning that had been intermittent since installation (starboard engine)--seems to be a loose connection. Noticed while taking boat home the starb.....
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 Cummins:QSM Series -  Impeller VIEW/REPLY Includes Attachments Notify me of any new messages to this topic. 1  Tue Sep 29 09 2:53 PM
Sep 26 2009
04:24 PM
Level-1 Member Tomas Kempe   1750 hours and 5 years, could go another 5. Sherwood G1809 pump similar to G1810 except that the cam-liners are a bit thinner on top. Why it last this long, no idea, except that on this and most QSM t.....
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 Cummins:QSM Series -  Vibration Isolators VIEW/REPLY Includes Attachments Notify me of any new messages to this topic. 1  Sun Sep 27 09 7:34 PM
Sep 26 2009
03:05 AM
Level-2 Member Cobra   I am getting ready to install a pair of Cummins QSM11 610hp in an aluminum ferry with Twin disc 1.75:1 5114A transmissions. I am not sure whether to use rubber mounts supplied by Cummins, or have th.....
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 Cummins:QSM Series -  QSM11-M Impellor Replacement VIEW/REPLY   Notify me of any new messages to this topic. 2  Sun Sep 20 09 3:10 AM
Sep 18 2009
01:01 AM
Guest Martin Gilchrist   Any exploded views of QSM11-M impellor housing and interior. Have obtained new impellors, but was concerned that one end of impellor interior is threaded and have never seen an impellor with such thre.....
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 Cummins:QSM Series -  Water bleeding through exhaust elbows at weld VIEW/REPLY Includes Attachments Notify me of any new messages to this topic. 9  Tue Sep 15 09 1:18 AM
Sep 2 2009
02:10 AM
Level-1 Member Richard J Geczi   Tony, tell me whats going on here. It appears I have Water bleeding through the exhaust elbows at welds on both engines right at the point the bracket attaches to the elbow. see attached photos. This .....
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