275ISBs in Diesel Pushers
Seeing a lot of DP in the late nintys with the 275 HP ISB. Believe that is the top end for that engine, grown from 190HP or so up to the 275HP version. Does pushing it that much result in more frequen...
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Passin Thru wrote:
Bosch fuel pumps are notoriusly unreliable. Chevy used them in their V8 Diesel which was a gas engine block, (Duramax is made by Isuzu) and they might last 50 K mi.
The Chev/GM 6.2L v8 series had a Stanadyne DB2 pump, similar to the old Roosa Master. They were good pumps, I got 110k, 120k out of the two I changed out. Considering they were less than $500 for a rebuild, I thought them a deal. Completely mechanical pump.
VP44 pumps had mechanical failures of rotor design tolerance imperfections, diaphragm faliures, lift pump caused low pressure, and some electrical issues, heat being an issue causing failure of the electronics. Sort of similar to a DB4 Stanadyne used in GM's. Different beast.
