It seems as though I have extra brake pedal travel ever since I switched to 33" tires, could this be a load sensing valve adjust problem? Got me some rear brake shoes on the way, going to re/re the brakes anyhow.
brake travel (1 Viewer)
- Thread starter Chang-kuao-lo
- Start date
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Tapage
Club 4X4 Panamá
What kind of land cruiser series did yoy have .. also I thought maybe is height related issue, if you put a new lift.
- Thread starter
- #3
BJ 74, no lift, just 33" tires. I figure my brake shoes are getting thin, and the self aduster has run out. I'm just not sure if the bigger tires would affect the load sensing valve.
Tapage
Club 4X4 Panamá
Chang-kuao-lo said:
no in fact .. but you know, big tires, more weight, more diameter, your need to press more strong to stop those one in the same distances than other 31" for example ..
- Thread starter
- #5
no, it's the sort of thing that the brake pumps up, and apply stronger.
crushers
post ho
did you properly adjust the rear brakes when the new shoes went on?
It could be the MC dying from increased foot pressure required to stop the bigger radius of the 33.
I seemed to remember that happening to me when I got 33s
eDITED I see Tapage has already said that
I seemed to remember that happening to me when I got 33s
eDITED I see Tapage has already said that
Bigger tires demand more from the brakes. Any problems before could be amplified now. Ooops, that is what Tapage and Rosco just said
LSPV should not be affected by larger tires as the entire vehicle is raised and the axle to chassis relationship is not altered.
Dave
LSPV should not be affected by larger tires as the entire vehicle is raised and the axle to chassis relationship is not altered.
Dave
- Thread starter
- #9
New shoes haven't gone on yet, haven't arrived yet, as a matter of fact. I don't think the MC is failing, once the pressure is pumped up, it stays steady, a bypass in the MC causes the pressure to fade.
crushers
post ho
my guesstimate is adjust the rear shoes and all will probably be fine. i have run 35s for years with no change int eh brake pedal height but i did find i needed (or should have) adjusted them more often due to increased wear...
Tapage
Club 4X4 Panamá
when I go from 33"to 37"in one step .. I definatly feel the brake pedal traveling much more .. off course more wieght .. and bla bla bla ..
When I clean my rear brakes ( wheel spacers 12 lugs per wheel ) wouu a comes with a huge improvement .. but yes I know go with disc ..
When I clean my rear brakes ( wheel spacers 12 lugs per wheel
) wouu a comes with a huge improvement .. but yes I know go with disc ..
- Thread starter
- #12
Going to switch back to studded 235's for winter when I re/re the brake shoes, hopefully I can afford a disc conversion kit when I lift it next year. Also noticed myleft front knuckle is leaking like a sieve ... oh well, at least the seal kit is inexpensive.
Also noticed myleft front knuckle is leaking like a sieve ... oh well, at least the seal kit is inexpensive.
Chang-kuao-lo said:
I notice a big difference in going from 255/85R16 to my 35x16 SSR's. More effort and feels like more pedal to stop. I give myself more room...
I raised my rear proportioning valve at least 3" when the Beltons went on.
Larger front calipers and perhaps a brake master upgrade might help...
On that note: Anyone gone to the larger runner calipers on a 70, and not had to change out the master?
Thanks
gb
Tapage
Club 4X4 Panamá
Well after I go with front brakes upgrade my chioce was a rear dis brake ( with e brake ) did you thought front upgrade need to be first . ?
Greg_B said:
In my opinion, dollar for dollar, the 4Runner caliper upgrade is more effective than a rear disk brake conversion when it comes to braking power. Most of a vehicle's forward braking comes from the front anyway. That said, I'm planning to upgrade all my cruisers to rear disk set ups anyway just for the bling factor
People's experience even in older FJ40's using the stock master varies quite a bit. Some feel the factory master is sufficient, some don't like the increased pedal travel. I would try the stock master first, it only costs some extra brake fluid if you change it later. I'll report later if the 1990+ cruiser that have larger calipers from the factory have larger bore masters than the older ones.
Dave
Tapage
Club 4X4 Panamá
maybe my next step are 4Runner disk and calipers in front ... having 4 disc I thought is great brake imprevemt .. in term no more shoes adjutstement ..
beanz2 said:In my opinion, dollar for dollar, the 4Runner caliper upgrade is more effective than a rear disk brake conversion when it comes to braking power. Most of a vehicle's forward braking comes from the front anyway. That said, I'm planning to upgrade all my cruisers to rear disk set ups anyway just for the bling factor
People's experience even in older FJ40's using the stock master varies quite a bit. Some feel the factory master is sufficient, some don't like the increased pedal travel. I would try the stock master first, it only costs some extra brake fluid if you change it later. I'll report later if the 1990+ cruiser that have larger calipers from the factory have larger bore masters than the older ones.
Dave
Just regular 4 runner calipers, from napa or so?
and when you go to disk brakes, how will the e-brake problem be handled?
thanks
jan
Tapage
Club 4X4 Panamá
Jan-78FJ40 said:
Jan TSMMFG sell in 300 rear calipers with e brake .. you must need to do some jog to comect the e brake line.
