Reply to edb:
Hi Mark,
welcome to the BB.
Wow, what an interesting history you have put down there to honour your Father and his vessels.
I have yet to finish reading your most interesting story, from what I have read so far you have my interest. I will be back when time permits--some of those Marine businesses sound like some I have visited way back when--staffed with some very knowledgeable people--a lot I would think were ex Armed Forces Service personnel who learned or honed their skills in adverse conditions.
As a Cat Dealer trained mechanic I have worked on Marine engines too and can say that in my experience Cat engines are up there for reliability and endurance if serviced as you and your Dad appeared to have done. They do well with economy too.
Alas, I do not have spec sheets for the D3400 engine--only go down to D4400. I am sure some one will be along in due course and help you out so you can finish your History.
My Rack Setting Chart agrees with your 26HP Rating at 1500rpm Full Load speed and 1590rpm High Idle speed for a D3400 Marine Engine. If your prop was correctly sized you should have been just above the 1500rpm figure at full speed.
Thank You for coming along and telling us your historic tale, I for one do appreciate your effort.
Cheers,
Eddie B.
[quote="edb"]Hi Mark,
welcome to the BB.
Wow, what an interesting history you have put down there to honour your Father and his vessels.
I have yet to finish reading your most interesting story, from what I have read so far you have my interest. I will be back when time permits--some of those Marine businesses sound like some I have visited way back when--staffed with some very knowledgeable people--a lot I would think were ex Armed Forces Service personnel who learned or honed their skills in adverse conditions.
As a Cat Dealer trained mechanic I have worked on Marine engines too and can say that in my experience Cat engines are up there for reliability and endurance if serviced as you and your Dad appeared to have done. They do well with economy too.
Alas, I do not have spec sheets for the D3400 engine--only go down to D4400. I am sure some one will be along in due course and help you out so you can finish your History.
My Rack Setting Chart agrees with your 26HP Rating at 1500rpm Full Load speed and 1590rpm High Idle speed for a D3400 Marine Engine. If your prop was correctly sized you should have been just above the 1500rpm figure at full speed.
Thank You for coming along and telling us your historic tale, I for one do appreciate your effort.
Cheers,
Eddie B.[/quote]
My Dad rarely ran our D 3400 above 1400 RPM thinking that slower would make it last longer. Later another mechanic told him he should run it at 1550 without fear and that if he never ran it hard it could build up carbon deposits etc. As old and worn as it was it didn't smoke much.
It clattered like crazy on a cold start but settled down to smooth idle when it warmed up. It was just so reliable. Never once let us down.
Back then you could buy two grades of diesel fuel, dark or light. Can't recall what my Dad chose, probably whatever was cheapest. I recall paying 14 cents a gallon. He really complained when it went up to 19 cents. We didn't have to pay a road tax on marine diesel.
Some thrifty fishermen would pour their used crankcase oil back into the diesel fuel tanks after an oil change. They claimed the fuel filters would take care of any impurities and why not get some miles out of the oil. My dad never did that. He treated our engine like a family member. "You don't feed garbage to a friend" he once told me remarking about the "on board oil recycling" practice.
Back in the early 60s there was an oil "re-refinery" located in San Carlos CA that collected waste lube oil and reprocessed it for vehicle use. My 6th grade class visited the plant and watched black gunky waste oil emerge as clear golden "re-refined" oil with a new additive package added. We each got a 1 qt metal can of re-refined oil to take home. I asked my Dad if he was going to put it in our car and he said no, but he would use it for household lube needs.
My brother is still a CAT man. You cant convince him that there is a better engine made. I own a dirty workboat with a Jimmy 671 diesel that I plan to commercial fish when I retire. He has an immaculate Buddy Davis designed 68 ft sport fisher with two V -12 CATS in it. I think his fuel burn at 32 knots is about 160 GPH. I burn about 3.1 GPH at my top speed of 7 knots. Much less when I troll.
Mark