David Brown Trackmaster Crawler

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RUSTY_RELICS
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David Brown Trackmaster Crawler

Post #1 by RUSTY_RELICS » Tue Jun 11, 2019 5:29 pm

Hi All,
I have just finished an engine rebuild on a 1950, David Brown Trackmaster crawler.
My crawler is serial # 23 out of 700 "Trackmasters" manufactured, then they switched over to the 30T (Petrol, TVO) & 30TD (Diesel) crawlers.

Long story, short. I bought this crawler a few years ago from a collector in Lincolnshire, the crawler was mixing engine oil with coolant. I thought it might just be the head gasket. When I stripped it down she already had a new head gasket, new valves here and there and the cylinder head looked like it had been skimmed at some time.
The condition of the cylinder bores however looked terrible !
Cylinders 2&3 looked to have bad water damage and signs of seizure at some time.
When it was all stripped out I found 2 cracked cylinder sleeves, allowing coolant to enter the bores, subsequently hydraulicing in the bores and then bent x2 of the conrods.

The Crank was chewed up due to the bent conrods, luckily it was at standard and it needed to be reground by .020" to clean it up.
New main & conrod bearings were fitted, along with N.O.S pistons which i found and x4 new cylinder sleeves

I have lots of photos of the rebuild, to share & for you to enjoy
Here is the link >>>>>> https://goo.gl/photos/kmyY9booKYXDoFx59

Thanks
Carl Hargreaves
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Last edited by RUSTY_RELICS on Tue Jun 11, 2019 8:39 pm, edited 1 time in total.

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Re: David Brown Trackmaster Crawler

Post #2 by RUSTY_RELICS » Tue Jun 11, 2019 8:10 pm

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The production line, Output in 1950 was 2 machines a week but by 1951 output had risen to 14 per week. The crawler pictured is slightly later than mine, note the air cleaner. My air cleaner oil bath is mounted in the chasis frame.

Image

Crane is a blaw knox

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Thanks,
Carl Hargreaves

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Re: David Brown Trackmaster Crawler

Post #3 by RUSTY_RELICS » Tue Jun 11, 2019 9:29 pm

Google is our friend ..... ;)

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Jeremy Rowland
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Re: David Brown Trackmaster Crawler

Post #4 by Jeremy Rowland » Tue Jun 11, 2019 9:49 pm

Nice one Carl :claphands: :thumbup:

Jeremy

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Re: David Brown Trackmaster Crawler

Post #5 by modelman093 » Wed Jun 12, 2019 11:49 pm

Great project and documentation - worthy of a change of Avatar!!
Thanks for posting.

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Re: David Brown Trackmaster Crawler

Post #6 by RUSTY_RELICS » Thu Jun 13, 2019 1:16 am

modelman093 wrote:Great project and documentation - worthy of a change of Avatar!!
Thanks for posting.


Haha,
I've just got myself a fowler VF and a Series 1 Marshall. They've been on my wish list for a long time. My dad has a series 2 btw.


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Re: David Brown Trackmaster Crawler

Post #7 by shane.c » Sun Jun 16, 2019 12:18 pm

Looks good done a good job, :thumbup:

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Re: David Brown Trackmaster Crawler

Post #8 by RUSTY_RELICS » Tue Nov 05, 2019 12:04 am

Hi all
I made a bit of a slide show, out of all my pictures of the rebuild. I've also done one on my Field Marshall tractor rebuild over in the the Tractor section of the forum.
"The things you get up to on these winter nights"

Thanks,
Carl Hargreaves



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