[Thornycroft T154 and BMC 2.5D compatibility]

hi Tony, (and all)

after dived into this for 4 days now, i am convinced that there are no 2 identical inboards in the whole world!! haha, 

every engine seems to be constructed using bits and pieces that were accidnetly available at the time....haha,

but on a serious note,

yes, i will get my cracked head fixed with inserts, i found a professional company this morning, (even pretty nearby) and the assured me they can do the job!

so will go with that, ( and decline on the offer for the BMC head)

all thanks for your advice and the final post will be the picture of the repaired head, promise!!

jos

[Thornycroft T154 and BMC 2.5D compatibility]

hi Tony,

many thnx for your feedback, priceless!

unfortunately, i have not been clear, i assume because english is not my native language,

last pic is of the BMC commander, of which the cylinder head was removed, just to be put on the blue T`154, which head had the 2 cracks. (labeled troostwijk 309)

am sure other parts of the Commender are for sale if anyone needs parts

at this moment i think i will opt for the "stitching" method of the original T154 head, since it will be a spare engine anyway

 

[Thornycroft T154 and BMC 2.5D compatibility]

sorry guys, clicked on the wrong thumbnail, this one is better, later today i will try to get a pic from the typenr

[Thornycroft T154 and BMC 2.5D compatibility]

Many thnx already for your replies!

pic 1-2 are from the T154, the 3rd from the BMC, wil try tomorrow to get a pic of the typenr. 

 

@ Tracy D'arth

could you explain in  leeman terms how the stitching is done?? and is it a reliable solution for say the  next 10 yrs?

never heard of that before, ( but then again, l'm not an engineer....)

[Thornycroft T154 and BMC 2.5D compatibility]

hi All,

 

new to this forum but after been reading the first 10 pages i am confident i will find the experts here!!

couldnt find any older topic on this matter, i have a t154 in my motorsailer,  which runs fine (knock wood!) i do love these old "simple" engines with no computers, so much easier to troubleshoot!

i, recently, was able to buy a similar which i  want to overhaul and keep in reserve.

after taking off the cylinderhead, i noticed the head was cracked, 2 minor cracks between the valves.

finding a replacement head seems to be very difficult.

i am now offered a BMC 2.5D, seller claims they are identical, 

they do look identical but for one extra hole in the thornycroft head, pic 1. an array of 5 holes on the right hand side, where the bmc has only 4, pic 2 and 3.

 

Any thoughts on this matter??

thnx in advance!

Jos

(from the Netherlands.....)