AHHHHH so you do have a little "yellow" monster on the go, can't wait to see this come together....
1970 Peterbilt 352 Pacemaker
Posted 06 December 2012 - 12:09 PM
Like your moniker, your builds are always unique and always very interesting to me. You can even take a fairly mundane kit like the 352, add your own special touches and viola!, you produce something unique and different! I love watching your builds come together.
As for this one; Being a former over the road driver and having driven some real doozies (Read: underpowered boat anchors) in my day, I was pondering the ramifications of a 425hp beast in an era of 250 and 318 hp machines. Having driven a few older trucks, this Pacemaker would have been a real Contender... A real Money Maker! It's what a truck should be; modest, unassuming, but with a heart the size of a mountain. Something an Owner-Operator would have been proud to own and drive.
I look forward to seeing you finish this one.
Posted 07 December 2012 - 02:19 PM
Posted 08 December 2012 - 12:57 PM
i like it a lot. short wheelbase , db stack. big engine.
do you plan some spoke wheels or budds??
Posted 09 December 2012 - 10:42 AM
Many thanks for all the kind words. I really like the older vehicles particurly from the 1950s through to the 1980s. There is a lot less chrome on these vehicles and they seem to me to be more purposefull than some more modern variants. With regrads to engines I like the idea of a wolf in sheeps clothing and got the idea of building this vehicle from a video I found on Youtube of a 359 with a 1693TA. I am also building the 359 (my version) in the video. The 352 and 359 will be a matching pair. See below:
Posted 09 December 2012 - 12:37 PM
Nice vid. Man, they didn't call them "Clatterpillers" for nothing, did they?
Posted 09 December 2012 - 04:54 PM
Posted 18 December 2012 - 02:37 PM
"Wolf in sheeps clothing"... That sounds about right!
Posted 24 December 2012 - 04:23 AM
Yes, that four and a quarter Cat was a big motor back in the day, in fact we'd call that truck a large car. When I first started driving all of the road tractors had Armstrong steering. You learned quick how to back up without wearing yourself out. Not like today where I see guys just palm the wheel and it doesn't matter that they completely over steered, as they can just palm it back the other direction. I was talking to a driver the other day and the company he drives for has all automatic now, what has trucking come to? Man that was part of the fun of driving, getting good enough that you could drop it in gear with one finger, plus learning how to short shift to get going faster, man times have changed. Yes those were the days. Very nice build Old Albion, I spent a few years driving a 352 Pete Cabover with a 350 Cummins and 13 speed Roadranger transmission and yes, it had Armstrong steering
Posted 20 January 2013 - 05:16 AM
Ok a little update. Appologies for the delay!! I have made some good progress, but due to the cold weather I can not do any painting (I like to spray in my little shed outside) So I have gone as far as I can for the moment. The Wilson livestock trailer will be matched with the truck. That too is now awaiting paint.
Thanks for looking!
Posted 20 January 2013 - 06:44 AM
Two oldies together as a kit will be a nice look.
Good job on the details.
God Bless you and your's
Posted 20 January 2013 - 09:49 AM
Where did you get the 1693? I'd like to have one.
I got 3 1693TA engines from Sourkraut's Model Trucks. They are the ones made by KFS. I have got one about 2/3 of the way built. It is the best model truck engine in resin I have ever seen and I have done several of them. His internet address is sourkrautsmodeltrucks.com.
Edited by numbersman, 20 January 2013 - 10:55 AM.
Posted 27 January 2013 - 03:14 PM
Its been a while since I posted anything so decided that it was time to do so. I have been working on a couple of builds (matching Pair) of Peterbilt trucks one a 352 Coe and the other a 359 conventional. Progress on the 359 is slow with not much done but I have been making progress with the 352.
The truck will feature a Clatterpillar 1693TA engine. This is a big engine and took a lot of carefull "adjustments" to get it to sit in the frame and not clash with the dog house. With the big engine (Probably the biggest horsepower engine (425HP) available in a pacemaker in 1970) I needed a larger air breather unit and bigger exhaust stacks. It will also need a bigger radiator. You will note from the photo's that the exhausts are not fitted to the cab rear. Instead they are fitted to the "Eiffel tower" frame. This looks quite pleasing and in keeping with the rest of the build. This frame did not appear until 1973 (I think) so mine being a 1970 model has had the exhausts removed from the cab and the Eiffel Tower retro fitted at a later date. The frame and the bottom half of the cab will be dark blue, middle of the cab white and the top of the cab light blue.
Thanks for Looking!
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What modifications did you make to the frame and doghouse to get the big engine to fit? I am going to do about the same build, different colors. Maybe I won't have to re-invent the wheel. Thanks, Charles
Edited by numbersman, 27 January 2013 - 03:17 PM.
Posted 27 January 2013 - 05:55 PM
Posted 28 January 2013 - 06:21 AM
Getting the engine to fit was a pain!
As far as modifications to the frame these basically are the removal of the front engine crossmember and the crossmember that supports the radiator. The new crossmember with the engine kit will fit in place of these two. There are two pads on the crossmember that the front engine mounts fit on. These pads will need to be removed. It's important to get the engine as low as practically possible in the frame. Also the two front engine mounts were removed and ones that were twice as long made and installed. This pushes the engine further back to allow forthe bigger radiator.
When assembling the engine turbocharger it's important to shave of as much material as possible from the exhaust manifold to reduce the overall height when the turbo is fitted. Get it as close as possible to the manifold without touching. You will see from the photo's that the inlet pipe on the turbocharger has also been reduced in length. This is to allow for the inlet elbow to conect to the air cleaner. Watch this because it will foul with the dog house.
As far as the dog house is concerned. It will most probably need to be eased or relieved a little. Your problems will be with the turbocharger and the air inlet pipe from the air cleaner. On mine I assembled the tub main structural components, then gently heated the tub in the area of the turbo and gradually eased it out. So that there was a small deflection big enough to accomodate for the turbo. WIth regards other modifications the height of the gear change lever bracket is too high and needs to be lowered otherwise it will interfere with the cab when fitted. (Have a read look through some of Tim's Pacemaker builds, there are some usefull tips when building.)
Hope this helps.
Posted 28 January 2013 - 06:55 AM
Fitting the engine... and now you know why they developed the 352H ! The bigger engines and radiators just wouldn't fit under the Pacemaker.
So they raised the cab 4 inches, widened the dog house slightly at the radiator and all the big powerplants fit with no real problems with pipes and hoses.
Before the H, they had to be really creative and custom design parts to fit.
Posted 28 January 2013 - 08:36 AM
it's interesting to read what you say about the problems of fitting the bigger engines. Whilst working on the build I often wondered what the engineers and designers thought and did to overcome the problems. And yes I can see why they developed the H model. That 4" (4mm to us in 1/25 scale) would have made all the difference. It's interesting to note that the 1693TA was a taller engine than the Cummins KTA series. Cummins put the turbochargers on the side where as Clatterpillar fitted them up on top. This is probably due to the fact that they were developed for earthmover equipment. Still I would have thought that the engine envelope was to an SAE standard of some sort. But maybe not. It's all history now but good fun.