Thornycroft diesel

[adelaidem]

Anyone have any comments or info on the old donks?

 

[owen]

any particular area?? thorney croft marinised many engines i presume u mean the bmc 1500
loads of postings on these engines.
in general:
old fashioned and a bit agricultural.
very reliable but should have oil chaged every 50 hrs non synthetic oil
parts cheap and readily available for every part from specialised factors and also motor factors
filters etc v cheap
simple to work on
lots of expertise out there on ybw so usually get good responses to queries

 

[adelaidem]

Its around 33hp, Leyland Thornycroft diesel it could may well be the model you have stated i will check on that tommorow, so far i havent had much luck finding a compatible oil filter but still working on that job, found it very hard to get the diesel to the injectors just a very small drip which my mechanic said there should be more than that there. It would be good to get as much info as possible and i apprecitate any comments that are posted..........cheers

 

[2nd Wind]

ASAP Supplies are very good with these engines. Also very helpful and should be able to sort your filter query. They are very good at fault diagnosis over the phone too, even at 1655 hrs on a Friday.

 

[Gordonmc]

Here's some gen which might help:

Thorneycroft T90 (BMC 1.5ltr) Marine Engine
This applies to the spin-on filter which was a conversion:
Oil filter. 7.62 diameter. Length: 123mm. Deal Diameter: 61/72mm. Thread: 3/4 - 16 UNF. 2.5bar pressure relief valve & non return valve
Mann-Hummel Champion Crossland Purflex
W719/5 C101 652 LS702
C101G
C132
C155
C147
C113
If you still have the original filter (it has a bolt head on the bottom of the casing) go to the ASAP or AMC websites for the paper filter inserts. I would advise to get a conversion kit to make life easier and your drip-tray cleaner.

 

[dickh]

As said earlier go to ASAP Supplies for most spares. Thornycroft themselves can also supply spares and are helpful if a little expensive. I would agree with the comment about spin-on oil and fuel filters, it's on my list for next year if the engine proves reliable. I've just rebuilt the cylinder head on the boat I bought last year. ASAP have good prices eg the heater plugs are half the price.
Make sure it starts easily and if you get one check the exhaust elbow - mine was really coked up.
If a heater plug has broken off flush with the head, it's a head off job(like mine as I didn't spot this when I first saw the boat and as it was ashore could not run the engine.....)
http://www.asapsupplies.com/
http://www.thornycroftengines.co.uk/

 

[adelaidem]

It starts and runs like a clock,The exhaust elbow was that badlly rusted it broke of the first time i touched it so im getting a stainless outlet made. It has a screw on oil filter and fuel, unipart C155 but being in aussie land its seems not 2 common but i havent searched 100% as of yet.have fitted a 65amp alternater,new paint,just need to level the donk so i can pump the oil out and find a filter and shes ready for the crane ride back on to her engine beds....thanks for the help i have documented all for future reference..........southace