D6C 73A Cylinder had tension and valve clearance

[pmduke]

Hello all

I am in need of the procedure and tension for the cylinder head tension and valve lash clearance for the D6C 73A00276 serial number.
Also can anybody tell me what this particular engine model is. Would it be a D318.

Thankyou
Peter

[Old Magnet]

Head torque should be done in two passes 85 ft-lbs for first pass, 125-135 ft-lbs on second pass. Start from center and work a criss-cross circular pattern outward.

Exh (hot) is 0.025 in.
Int (hot) is 0.015 in.

This is for the D333T. They supposedly did start with the D318 but changed to the D333T in 1964. Your 0276 model is shown as 1965

[catsilver]

I can't quite see how the D6C would have ever used the D318 engine as the previous machine, the D6B, already had the D333 engine from around 1959, maybe even in late '58.

[Old Magnet]

I agree but there seems to be ample published material about the use of D315's and D318's on early Au units that are different. A correct Parts Book would probably put an end to the mystery.

There does seem to be plenty of bogus information out there (typical internet) and once published other take it for gospel.

[edb]

Hi Peter,
your "Cat of Australia" built 73A 00276 is the equivalent of USA built 76A 02236.
Hope this helps get the correct Data as it should be powered by the D333T engine.
These machines came in as a skid pack of just the main machine less under carriage and attachments. The undercarrage and attachments were built here and an Aussie S/No was given to the machines by C of A.
Cheers,
Eddie B.

[Old Magnet]

Hi edb,
Can you shed any light on the indication that Au machines had D315's in early models that normally had D330's of D318's in units that normally had D333's in the US. Seems unlikely to me but can't say for sure.

[edb]

Hi OM,
I do not recall anything about the subject of Aust. product having other than the correct engines for the particular model machine.
I do stand to be corrected !!! as I worked for The Dealer and am only aware of what I encountered. Cat Of Australia did some things different due to tooling costs etc and low production runs, see below.

As stated in my post above the machines were skid packs of an Equivalent US built machine be it :- Motor Grader, Traxcavator, 933 & 955, or Track Type Tractor, up to D6, with Local built :- Main Frame and Tandems for the MG, and Undercarrige and Attachments for both the Trax. and TTT.

We may have produced machines with the D318 etc after the introduction of the D333 etc in the US, BUT, these would have been left over production of the now obsolete US units.
Certainly the Motor Grader "A" Frame and Blade profile was kept for the "G" Series machines produced here, again from skid packs with local Tandems, Cabs, and Front Frame.
I can say that we did not get the "F" series Motor Graders here. CofA continued to produce the "E" Series MG until the introduction of the local built and S/Numbered "G" Series units.
The later Australian Built "E" Series units had a Serial No change from 21F to 17K with the fitment of the D333 engines and a change of cab style, most everything else was still early "E" Series design.
NOTE the serial No change with the engine series change, so, this maybe where the confusion of engine types comes about ?????

We would need some input from Ex CofA production people to settle this.

I cannot comment on the TTT production here without further study of my Equivalent S/No charts.
Hope this helps.
Cheers,
Eddie B.

[pmduke]

Thankyou all for your valued comments.

You have confirmed my thoughts and steered me in the right direction.

Eddie, how were you able to drill down the serial No. to 76A02236 as all I could come up with was the equivalent prefix. Is there a chance you could forward a copy of your serial No. index if I supply you my email address.
I believe you worked for the same dealership as I do. You were in the dealership in Vic for a long time and I am in Burnie.

Peter

[edb]

Hi Peter,
Yep, spent 43 years at the Melbourne Branch, did get to Burnie a few times over the years. First time was to commision the Trans Test Bench and teach on its operation and uses. Also to get to Savage River Mines to sus problems with the Dump Trucks of the day.
Over the years I saved a lot of discarded literature and the Comparative Partsgrams are just some of it. Did often get a verbal kick in the pants for doing so and not working on the job at hand. In later years they knew who to come to for Data, including CofA.
When I retired I left Tech Services at Clayton a copy of all of the Caterpillar of Australia's releases of Partsgrams I saved on this subject.
Cheers,
Eddie Bedwell

[bob]

PMDuke, Clean off the cyl head bolts well and look for an (X) mark on the head of the bolts .If they have that mark use 165 as a final torque. If they dont go with torque stated.
Later Bob