Two maintenance items to do
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From: MI
Two maintenance items to do
Fuel line return kit: new GPs but sputters till it lights off all at once.
Brakes: they suck, tons of pedal travel, sinking pedal, low pedal etcetc.
Should I replace the booster with the Ford revision "no bleedoff" new unit,
or get a hydroboost system from the wreckers off a directswap type deal?
Brakes: they suck, tons of pedal travel, sinking pedal, low pedal etcetc.
Should I replace the booster with the Ford revision "no bleedoff" new unit,
or get a hydroboost system from the wreckers off a directswap type deal?
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for the starting issue, air intrusion will cause a start-stall condition, from which you'll crank till your batteries are nearly dead before firing off again. return lines would solve this problem, but i'm not too sure about them solving the problem you describe.
for the brakes, the excessive pedal travel sounds like either loose rear brakes, or air in the lines. the sinking pedal sounds like the master cylinder leaking internally or into the booster.
a number of people have gone hydroboost, but some around here have cursed the system, saying that using either brakes or steering takes power away from the other system. i have yet to experience it myself, but would tend to stick with the vacuum system unless you have some reason to want to be rid of the vacuum pump (which i have no reason for)
cheers--josh
for the brakes, the excessive pedal travel sounds like either loose rear brakes, or air in the lines. the sinking pedal sounds like the master cylinder leaking internally or into the booster.
a number of people have gone hydroboost, but some around here have cursed the system, saying that using either brakes or steering takes power away from the other system. i have yet to experience it myself, but would tend to stick with the vacuum system unless you have some reason to want to be rid of the vacuum pump (which i have no reason for)
cheers--josh
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From: Northern Arizona
I only recall reading one negative post on hydro boost and that was someone who disliked the GM system, not Ford. Lots of others swear by it. I have not installed my JY hydro unit yet, but picked it up because I always felt the vacuum brakes on my truck were not adequate. I also experienced an abrupt failure of the vacuum pump diaphram once... which is something I would rather not experience again! If I had to stay vacuum boosted I would not chance it without a good vacuum gage. Hydro may have its own issues, but I'll take my chances with that over a vacuum pump any day. If I had not been pulling a trailer with electric brakes I probably wouldn't be here to post this...
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From: Ft. Worth
Just sounds like it is time to do a brake inspection all around...Forget hydro...to costly unless you really need them...for your truck, why would you need them? If your braking system is up to "snuff",,,specs that is...you will have plenty of braking power...just saying...
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well f834, i guess the ones i remember were talking about a GM system, good point there.
i personally haven't seen a hydroboost in a ford, so i was guessing that we were taking GM systems from the JY for this. but i really haven't studied it much
i personally haven't seen a hydroboost in a ford, so i was guessing that we were taking GM systems from the JY for this. but i really haven't studied it much
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From: Northern Arizona
Mine came from an F450 Super Duty powerstroke truck. Got the whole system including power steering pump master cylinder and all the hoses for 58$. Guess I'll keep my vacuum set up until I'm sure I'm satisfied with the hydro unit, but I'm thinking if it was standard equipment on the big trucks i will probably be pretty happy with it in my F 350. The whole thing feels really solid and heavy, so I'm optimistic that it is "equipment" grade.
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Mountain Pass
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From: Kremlin, Ok
I put hydroboost in mine a few years ago, but I'm changing it back to vacuum. The vacuum booster with properly adjusted & bled brakes works great. I wasn't impressed with the hydroboost pausing the steering when stepping on the brakes.
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also i get a big whooosh sound when i step on the pedal. which still leads me to an internal leak of the booster. if i jam the brakes hard i can get the truck to stop quick and pedal feels higher, but when doing a gentler stop like in rain the pedal siiiiinks. Im going to bleed the brakes soon as its free
Mountain Pass
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From: Kremlin, Ok
If you replace the booster, make sure it's a dual-diaphragm type. If you decide to switch to hydroboost, keep your vacuum pump. Your vent control in the cab and cruise control is powered by vacuum.
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i think im going to go ahead and get some re-manned injectors from accurate diesel on ebay, looks to be about 200 bucks for injectors and return kit.
I also have a pump that was remanned by international, but it is attatched to the old timing gear. How can I ensure its timed right when i put it on?
Pump has been sitting for a while as well.
also: heres howit started this morning. about 10 deg celcius out, warm.
I also have a pump that was remanned by international, but it is attatched to the old timing gear. How can I ensure its timed right when i put it on?
Pump has been sitting for a while as well.
also: heres howit started this morning. about 10 deg celcius out, warm.
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my understanding of pump installation is that you leave the gear housing attached to the engine, and just remove the gear from the pump, and the pump from the housing. installing it is the same way, take the gear off your reman pump and put it somewhere, then put your pump into position and attach it to the gear thats already on the engine.
doing it that way prevents having the gear off by a tooth, but you still need to time it from there. timing by ear can get halfway close, but ideally you buy the ferret timing adapter and use a timing light with it to get it tuned in to where it should be
doing it that way prevents having the gear off by a tooth, but you still need to time it from there. timing by ear can get halfway close, but ideally you buy the ferret timing adapter and use a timing light with it to get it tuned in to where it should be
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From: Denver, CO
Greg,
The only way to make sure it is timed right is to do it after it is installed, with a feret meter or luminocity probe. You can just pull the gear off of the reman pump, and bolt it up to your existing gear in place. DO NOT remove your timing gear cover! As long as it stays in place your timing gear can not come out of time. As far as sitting, I am not sure what kind of seals are in there, but I know seals don't like to sit dry.
Good luck,
Mac.
The only way to make sure it is timed right is to do it after it is installed, with a feret meter or luminocity probe. You can just pull the gear off of the reman pump, and bolt it up to your existing gear in place. DO NOT remove your timing gear cover! As long as it stays in place your timing gear can not come out of time. As far as sitting, I am not sure what kind of seals are in there, but I know seals don't like to sit dry.
Good luck,
Mac.
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also i get a big whooosh sound when i step on the pedal. which still leads me to an internal leak of the booster. if i jam the brakes hard i can get the truck to stop quick and pedal feels higher, but when doing a gentler stop like in rain the pedal siiiiinks. Im going to bleed the brakes soon as its free
i know i would love the increase in braking ability of h-boost, but ALL of the ford systems i have encountered i have not liked. almost all of the fords i have been in the pedal pulsates(even at idle, almost in sequence with the engine) when on the brakes similar to an ABS event, not quite as aggressive though as an abs pulsation. the ford's seem REALLY touchy. like there is only about a half inch of usable pedal unless you want to lock up the tires. The nice firm pedal is awesome but..... there is a significant increase in needed pedal force by the operator as well. that is on the factory h-boost superduty's as well.
The h-boost system i like is the dodge/cummins system. all of the above that i described about ford's system, dodge/cummins does NOT have. the pedal is similar to a properly working vac boost system but with good stopping power, you don't get the constant whine of the p-steering pump either, no pedal pulsation, breaks are not touchy either.