Little more help (Brake this time)

[rustrunner]

As before, still working on my KA.  Trying to get the frame back to rolling so can plumb and install rebuilt motor and trans in a month or so, but have brake problems.

 

Am OK on front brakes, for I could xref the BW Fd-17864 number to a good number and have new wheel cyl.

 

Back brakes are a problem.

 

Current Wheel cylinders have a 394548 number on them, and have a LOGO of a diamond with a S in the center.

We thought that this xrefed to a Raybestos # of WC37317, but that then provides a part where the round part that goes into the back plate is to small.  all the rest of the part is correct.  1 1/2 inch bore

 

Any help would be appreciated, would like to get the wheels back on in a couple of weeks.

 

Dan

[MBF]

RR:  If you take a sample to a NAPA that's been around for awhile (one that still has parts books) they may be able cross reference it for you, or match it up by specs instead of application.    If that doesn't work, I got the following response from Alretta Truck Parts in Boston, MA for the rear cyls on my JA.    They may be mirror images of each other left to right.   Mike

 

I offer a replacement cylinder for this truck which will fit and work. The original dual bore cylinder will not be available from anyone.

Please verify casting number and bore sizes: either 1.375 by 1.5” or 1.5” by 1.75”

Geoff
--------------------------
Alretta Truck Parts, Inc.
Bldg.#5B, 2nd floor
One Watson Place
Framingham, Ma. 01701

Tel# 508-788-9409

[rustrunner]

Thanks Mike:

 

Have two good NAPA stores that I work with, and neither one could find a replacement.   The fronts were shot (tooo much mouse peeee, and they may have been leaking when the truck was parked).  Will attempt to repair the rear.  Have one apart (after soaking in PB blaster) and it looks like they will clean up and be usable.  Would like to get new pistons for them, but have not yet found 1 1/2" replacement pistons. 

 

Same with the shoes, the backs look new, but the fronts were worn out, having them relined, should have them back next week.

 

Thanks for the Alretta info, looks like they could be helpful.

 

Dan

[Young Ed]

If you cant find a replacement have the originals sleeved.

[desoto1939]

IN my EIS Brake catalog I can finf a 1953 Dodge truck B-4-K  and the brake cylinders are Front r/l  EW17789  Rear R/L EW17786.  not sure if this is the same.  I can not find anything for a B-4-KA.

 

Rich Hartung

Desoto1939@aol.com

[MBF]

RR-the front cyls on my B2JA were the same as those on my 1 ton.  Napa had a listing for them.  Like you I don't want to pull the rear duals on the JA until I have known sourcing for those rear cyls.  I was hoping that like on the 1 ton that they would be the same front to rear, only specific to side.  I've been told that that is not the case.  Please post what you find.   Mike

[P15-D24]

Thanks Mike:

 

Have two good NAPA stores that I work with, and neither one could find a replacement.   The fronts were shot (tooo much mouse peeee, and they may have been leaking when the truck was parked).  Will attempt to repair the rear.  Have one apart (after soaking in PB blaster) and it looks like they will clean up and be usable.  Would like to get new pistons for them, but have not yet found 1 1/2" replacement pistons. 

 

Same with the shoes, the backs look new, but the fronts were worn out, having them relined, should have them back next week.

 

Thanks for the Alretta info, looks like they could be helpful.

 

Dan

I have dealt with Geoff at Airetta and he knows his stuff. 

[rustrunner]

Rick:

The EW17786 # looks like what I needed.  We had been able to xref the front to the EW17789 # from the original Wagner FD-17864 #, but could never cross to a correct rear #

 

Thanks.  If this doesn't work, then rebuild the ones I have.

[rustrunner]

Mike:

 

This is what I think is correct for larger Dodge truck brake cylinders, anyone with better info please correct.  #'s are old Dodge part numbers

 

Front Wheel Cylinder

For B1, B2, and B3 (F,G,H,J,K) they are all the same, but different part for each side. (R1271 426, L1271 427)

For B4 (F,G,H) it depends on Serial # (1393 321, 1271 426, 1271 427)

For B4 (J,K) they are the same, and same part for both sides (1393 321) (new # EW17789)

 

 

Rear Wheel Cylinder

For B1, B2, B3 (F, G, H) they are the same, but different part for each side (R1271 418, L 1271 419)

For B1, B2, B3 (J, K) they are the same, but different part for each side (R1271 422, L1271 423)

For B4 (F, G, H) they are the same, same part for each side (1500 485)

For B4 (J, K) they are the same, same part for each side (1394 347) (new # EW17786)

 

Dan

[rustrunner]

Found out (and have in hand) that the Dorman W17786 or Raybestos WC17786 is the correct Rear Wheel cylinder for the J and K truck.  Also have new W17789's for the front.

A couple of internet sited claim  that the Dorman W37317 is the same, but on that wheel cylinder, the round part that fits into the back plate is to small.

 

Couple of other questions:

 

Is the Oil Washer ( the washer that holds the oil felt) for the brake shoe post available.  Have a couple that are rather thin.  Can always make the felts.  Know that the keepers are available.

 

 

Also, was the Bendix - Westinghouse Air Compressor for the K model painted RED?  That seems to be what mine was, but that could be the primer showing?

Looks to have been red with a black pulley.

 

As always, thanks for your expert help.  Dan

[rustrunner]

One more Question:

 

Is the water pump the same for all the engines?  Mine has a 117001 number on it, which I believe is the Dodge 1064 925 part #.

 

Thanks again, Dan

[MBF]

Dan:  There are a couple of models of pumps.  There is one for the external bypass setup, and another one for the internal. I think there are also long and short versions.  If someone doesn't have better info I'll look up the p/n's that I bought for you.  I got all of them from NAPA.  Mike

[Dodgeb4ya]

The 1-1/2 through 2-1/2 ton pumps are different than the 1/2 through 1 ton trucks. This bigger tonnage pump has a 1" nipple at the top.  The thermostat housing has a 1" matching nipple the 90 degree by pass hose (#918474) connects to.

It's a very hard pump to find now days.

See pics..

Edited February 4, 2014 by Dodgeb4ya

[Dodgeb4ya]

Here is a picture of a factory installed Bendix/Westinghouse air compressor on a moly block engine....looks silver. I cannot tell the OE colors on my factory air trucks. Red is not a factory color-maybe a after market supplied rebuilt ect. compresser.

Edited February 1, 2014 by Dodgeb4ya