If it runs freely and rpms increase normally w/o trans engaged, I would look at the trans, packing gland too tight/shaft not aligned/cutless bearing/etc.——-something that is ‘aft’ of the engine. Charlie Nelson
Sent from the all new AOL app for iOS On Wednesday, September 8, 2021, 1:43 AM, Tom Buscaglia via CnC-List <[email protected]> wrote: I’d go with injectors. Tom BuscagliaS/V Alera 1990 C&C 37+/40Vashon WAP 206.463.9200C 305.409.3660 On Sep 7, 2021, at 6:17 PM, Dave via CnC-List <[email protected]> wrote: <!--#yiv8664196831 _filtered {} _filtered {}#yiv8664196831 #yiv8664196831 p.yiv8664196831MsoNormal, #yiv8664196831 li.yiv8664196831MsoNormal, #yiv8664196831 div.yiv8664196831MsoNormal {margin:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv8664196831 a:link, #yiv8664196831 span.yiv8664196831MsoHyperlink {color:blue;text-decoration:underline;}#yiv8664196831 .yiv8664196831MsoChpDefault {} _filtered {}#yiv8664196831 div.yiv8664196831WordSection1 {}--> Evening all. Trying to help a neighbour here with a diesel issue. His engine will rev freely at idle but with the transmission engaged in either forward or reverse, revs increase very slowly and only to 1800-2000 RPM on the tach. (whether tach is accurate or not, RPM under load is much lower than no-load, and RPM increases quite slowly.) We have verified that neither the exhaust system nor the fuel supply to the high pressure pump is obstructed. Air Intake is clear. The speed lever works smoothly to its full travel. The compression release is not engaged. The engine runs a new facet electric fuel pump with plenty of flow. When the engine is running, no fuel returns to the tank via the return line. The return line is not blocked, at least not downstream from the return barb at the injector. I am not sure under what circumstances the fuel should return to the tank in a diesel, as the return occurs after the high pressure pump. All This leads me to suspect a fuel (volume) problem but i am not exactly sure where to look next. I believe all that’s left are injectors and high pressure pump. The high pressure pump has a governor, not sure if that functions by restricting fuel flow. Any thoughts? Many thanks! Dave 33-2 Sent from Mail for Windows Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - StuThanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
