Re: 87 Grand Villa
Reply #23 –
More so.
Your ORED as I remember has a LQ4 valve under the dash that disables the front 15x4 drum brakes unless you hit the brakes hard enough to put more than 60 psi through the system. At normal pedal pressures the rear 15x7 drums are the only ones working. Careful as they overheat if driven hard.
Had a customer redo the system to allow the fronts to work all the time. Much better.
Why did Oshkosh put it in in the first place? A shudder in the front brakes backing up is why?
Gilligs shuddered in reverse from the two different size brake shoes that are partially self energizing going forward. Same thing in reverse caused the shudder from the secondary shoe. ,
Sticking my neck out here as some here are real wrenches and might laugh at me.
Bob