Peter's Moose List of Fix Its

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A little before and after of the 10mm bolts. Cleaned up well with a media blast/Air and WD40.
ImageUploadedByIH8MUD Forum1405725816.278091.webp
 
Quick question on master brake cylinders....

Going with a fj80 master with the 1" bore, is that comparable to a 4Runner master/booster setup??? (ie. extra size being better with the FJ80 MC??)
I may have clearance issues with the webber on a 4Runner system.

Any thoughts??? Thanks guys and gals.
Peter
 
Peters Moose said:
Quick question on master brake cylinders....

Going with a fj80 master with the 1" bore, is that comparable to a 4Runner master/booster setup??? (ie. extra size being better with the FJ80 MC??)
I may have clearance issues with the webber on a 4Runner system.

Any thoughts??? Thanks guys and gals.
Peter
Click to expand...

What brakes are you running? Disc/drum? Disc/disc? I think our drum masters are 3/4" bore, that is my memory of my '74 MC.

I thought the smaller the bore, the more pressure you can apply to the brakes, equalling what feels like a more "powerful pedal". I look forward to other responses...
 
PabloCruise said:
What brakes are you running? Disc/drum? Disc/disc? I think our drum masters are 3/4" bore, that is my memory of my '74 MC.

I thought the smaller the bore, the more pressure you can apply to the brakes, equalling what feels like a more "powerful pedal". I look forward to other responses...
Click to expand...

Will be running mini-truck discs up front (will be installed in a week or two) and the original rear drum brakes. Trying to find 9mm to 10mm adapters now and the new master is the last piece of the puzzle.

So need to know if the FJ80 is a good alternate if the 4Runner master/booster won't fit in the engine room.
Source for 9mm/10mm adapters to keep my current brake lines which are in good shape.

Thanks Pablo Cruise for the message!!
 
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fj55bay.webp


(pic of my current setup with stock cylinder and about 9" clearence from the weber to the wall)

BRAKE MASTER QUESTION ON MY 55
So I am just about ready to install the new front disc brakes (mini truck) on my (1969) 55.
I am looking to a booster setup but from the look of things, I am unable to squeeze in a full booster assembly. Which means I am replacing the master cylinder only.
What is the prefered cylinder setup for a 9mm single line system??

So to clarify looking to add a 4Runner setup if it's not size prohibitive.


I believe the junction for all four brakes is near the stock steering box. So with the correct JIC 9mm/10mm adapters, I should be able to hook up to a newer master and remove the prop/valve for the disc side?????

Anyone with a 60's 40 or 55 ever done this without a booster and keeping the same lines??
 
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This is the disk/drum power brake setup from my 1976 pig, looks like it might fit alongside your carburetor without much work.

Booster is approximately 8” diameter for reference.



 
Oh fantastic. I have nothing but a guess on the length/diameter. (Searched the web but nothing)
Great Pics!!!!
I was hoping that the 4Runner setup was shorter but from your pic I can see it is way longer than I thought. (Unless that's a LC setup-In which case I might be ok still with a 4Runner system)

The shorter M/C on the booster might work. The booster you have would run smack into the carb. My carb sits directly in front of the current master. Leaving me about 3" to add a booster.
Thanks for the reply!
Peter

***** Also posting this question on the 40-55 tech page to see if any other ideas are out there****
 
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Just ordered a used Corolla primary cylinder to try out and see its effectiveness on my 55 with front discs and rear drums.
If this cylinder works, then I will go with a OEM Corolla cylinder/booster set up which will fit nicely into my cruiser. (and plenty of clearance for the carb.)
This cylinder is already set up for disc/drums so just need to figure how to plumb my single 9mm lines to the 10mm fittings on the cylinder.

Thanks again to Pablo Cruise, J Mack and FishTacos for the recommendations.

primecyl.webp
 
Almost forgot - I just received my full rebuild kit from Marlin Crawlers. Another step closer!! :steer:

IMG_0097.webp
 
Just a reminder for all of us, don't mix up the knuckle arm shims, when taking apart. They are the rectangle shims. Keep all the top ones together and all the bottom ones together. Replace with the same thickness.

Nothing like a pile of new parts, have fun.
 
Thanks Scrapdaddy... I kept all the shims separate off the mini truck donor axle in Ziploc bags.
I actually was going to use the original ones as they seem in good shape. But maybe I will just do an equal swap to update the shims.
Thanks for the note. I appreciate all the advice for sure.
Peter
 
try napa for the 9-10 mm adapters.....there is mention of these in the 40 series FAQs somewhere IIRC
 
Peters Moose said:
Thanks Scrapdaddy... I kept all the shims separate off the mini truck donor axle in Ziploc bags.
I actually was going to use the original ones as they seem in good shape. But maybe I will just do an equal swap to update the shims.
Thanks for the note. I appreciate all the advice for sure.
Peter
Click to expand...
If you're putting different knuckles on a different axle, you need to use the centering tool. Trust me. I have one I can loan, if needed.
 
Thanks Bogus One I will take you up on that. (Sending PM)

Appreciate it J Mack that is a great tutorial on the procedure. Will go great with Bogus's device. Thanks!
 
New bearing races installed in the new (ish) hubs for my front disc swap. Another step closer. (The notch I cut out on the old races I did to use those as guides for the new race install. Worked great.)
ImageUploadedByIH8MUD Forum1407248721.659803.webp
 
Peters Moose said:
Just ordered a used Corolla primary cylinder to try out and see its effectiveness on my 55 with front discs and rear drums.
If this cylinder works, then I will go with a OEM Corolla cylinder/booster set up which will fit nicely into my cruiser. (and plenty of clearance for the carb.)
This cylinder is already set up for disc/drums so just need to figure how to plumb my single 9mm lines to the 10mm fittings on the cylinder.

Thanks again to Pablo Cruise, J Mack and FishTacos for the recommendations.

View attachment 924638
Click to expand...

You are welcome. More questions...

What year Corolla cylinder is that? What size bore is it? How big (or small) is the booster? That picture JMack posted make the boosters look huge!

You need 9 to 10 mm adapters b/c your '69 runs 9mm fittings, eh? When did our Pigs switch from 9mm to 10mm?

That Corolla cylinder looks like it could be good, but I do not like how the rear circuit port points towards the engine...
 
Peters Moose said:
Thanks Scrapdaddy... I kept all the shims separate off the mini truck donor axle in Ziploc bags.
I actually was going to use the original ones as they seem in good shape. But maybe I will just do an equal swap to update the shims.
Thanks for the note. I appreciate all the advice for sure.
Peter
Click to expand...

The thing I like about the factory shims that yuo don't get with the kits from Marlin/Cruiser Outfitters/etc. is that the Toyota shims have the thickness printed on them.
 
Peters Moose said:
New bearing races installed in the new (ish) hubs for my front disc swap. Another step closer. (The notch I cut out on the old races I did to use those as guides for the new race install. Worked great.)View attachment 925884
Click to expand...

How did you notch this?
 
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