Valve Setting WL-T + Brake fluid replacing nonABS

[Baz]

Engine Valve clearance settings for WL-T diesel bongo I understand to be Inlet 0.1mm +/-0.05mm Exhaust 0.2mm +/-0.05mm from bongo fury pages. However what is the position of the crankshaft/camshaft when they are to be set?

Brake fluid I intend on replacing with DOT5.1 would this be ok? What order would be recommended for the sequence? on a 1995 non ABS system using a traditional technique.

Thanks Bongo Forum rookie

[francophile1947]

Valve timing details here http://www.igmaynard.co.uk/bongo/forum/ ... &hilit=TDC
No idea about grade of fluid, but you start with the wheel furthest from the master cylinder and work inwards, finishing with the nearest.

[Baz]

Thanks for the info Mr John Mr Francophile, Bingo bongo.
Only as I'm a complete novice could I A: make numbers up for each valve as I choose, or B: preferably seem a complete case, and request "please sir" can you kindly offer me advice on which valves are which, number-wise.
Thanks in anticipation of enbongoment.

[mikeonb4c]

I've an alarm bell ringing says it might be Dot 4 (I bought some for mine in case but never have used it - will try and remember and look) but not sure about that. Have a search on here if noone replies as it must have come up before.

[missfixit70]

I've got Dot 4 on standby to do a fluid change, pretty sure that's what's recommended. Don't know enough about brake fluid grades to know the difference.

[francophile1947]

Here you go
Most automotive professionals agree that glycol based brake fluid, (DOT 3, DOT 4, DOT 5.1) should be flushed, or changed, every 1-2 years.[1] Many manufacturers also require periodic fluid changes to ensure reliability and safety. Once installed, moisture diffuses into the fluid through brake hoses and rubber seals and eventually the fluid will have to be replaced when the water content becomes too high. Electronic testers and test strips are commercially available to measure moisture content. The corrosion inhibitors also degrade over time. New fluid should always be stored in a sealed container to avoid moisture intrusion.

DOT 5 is silicone fluid and the above does not apply. Ideally, silicone fluid should be used only to fill non-ABS systems that have not been previously filled with glycol based fluid. Any system that has used glycol based fluid will contain moisture, glycol fluid disperses the moisture throughout the system and contains corrosion inhibitors. Silicone fluid does not allow moisture to enter the system, but does not disperse any that is already there either. A system filled from dry with silicone fluid, does not require the fluid to be changed at intervals, only when the system has been disturbed for a component repair or renewal. The United States armed forces have standardised on silicone brake fluid since the 1990s.

Brake fluid is not considered a "top up" fluid. If it is low, there is usually a problem. Brake fluid level in the master cylinder will drop as the linings (pads or shoes) wear and the calipers or wheel cylinders extend further to compensate. This added fluid may need to be removed when renewing pads or shoes. Overspill from pushing back pistons should be avoided, because glycol based fluid, will lift or strip paints and other coatings on contact. Brake fluid level may also be low because of a leak, which could result in a loss of hydraulic pressure and consequently, a significant loss of braking ability. Modern cars have split hydraulic circuits to ensure against total hydraulic failure.Brake fluids with different DOT ratings should not be mixed, not all DOT fluid is compatible. This is because it will dilute and reduce the properties of the higher specification DOT fluid, or in the case of mixing of glycol with silicone fluid may cause corrosion due to trapped moisture.

Brake fluid can be dangerous as it is toxic and highly flammable



It seems that DOT4 and 5 are totally different and must not be mixed

[missfixit70]

He was looking at using Dot 5.1, don't know if that makes it compatible? that's if it's Dot 4 in there in the first place.

[bongobaz]

He was looking at using Dot 5.1, don't know if that makes it compatible? that's if it's Dot 4 in there in the first place.

Not something else to worry about will i never sleep. What do i look for and would it be covered by a service?

[missfixit70]

I doubt fluid replacement would be covered by a standard service, even though it's recommended it's done every 2 years, I know I haven't done mine in nearly 3 years of ownership, but it's on the roundtuit asap list. Not a huge job, basically just got to pump new fluid through the system & make sure it's bled through with no air bubbles.

[francophile1947]

I doubt if Mazda would have used DOT5, as it never needs changing and that would upset the dealers If they did, it makes no mention of replacing silicone based with glycol based, so I would just replace all the fluid with DOT5.1. Just pump until clean fluid comes out of the bleed pipe (not forgetting to check the level in the master cylinder regularly). I found this to be good http://www.machinemart.co.uk/shop/produ ... -equipment but don't know if any of the caps fit a Bongo

[wonkanoby]

how would you be sure you got all the old out


from that article

.

DOT 5 is silicone fluid and the above does not apply. Ideally, silicone fluid should be used only to fill non-ABS systems that have not been previously filled with glycol based fluid


so i would stick with dot4

[francophile1947]

how would you be sure you got all the old out

From above reply - Just pump until clean fluid comes out of the bleed pipe (not forgetting to check the level in the master cylinder regularly)

from that article

.

DOT 5 is silicone fluid and the above does not apply. Ideally, silicone fluid should be used only to fill non-ABS systems that have not been previously filled with glycol based fluid


so i would stick with dot4

DOT5.1 is also glycol based - it's only DOT5 that's silicone based.

[missfixit70]

I don't suppose anyone knows the capacity of the system?

[mikeonb4c]

how would you be sure you got all the old out

From above reply - Just pump until clean fluid comes out of the bleed pipe (not forgetting to check the level in the master cylinder regularly)

from that article

.

DOT 5 is silicone fluid and the above does not apply. Ideally, silicone fluid should be used only to fill non-ABS systems that have not been previously filled with glycol based fluid


so i would stick with dot4

DOT5.1 is also glycol based - it's only DOT5 that's silicone based.

..but then we're back to Square One

Any system that has used glycol based fluid will contain moisture, glycol fluid disperses the moisture throughout the system and contains corrosion inhibitors. Silicone fluid does not allow moisture to enter the system, but does not disperse any that is already there either

[mikeonb4c]

I doubt fluid replacement would be covered by a standard service, even though it's recommended it's done every 2 years, I know I haven't done mine in nearly 3 years of ownership, but it's on the roundtuit asap list. Not a huge job, basically just got to pump new fluid through the system & make sure it's bled through with no air bubbles.

ditto. Bought the fluid and self-bleed kit when I bought the Bongo, all determined to do it. Then read of issues getting self bleed kit to work on reservoir cap without putting a hole in it. Didn't like that. Never got a round tuit. Did a reality check. Did my Nissan Sunny have a brake fluid change in its 18 year life? Did it eck as like. Seems to me that if everything feels OK, it is OK. My guess (but correct me if wrong) is that excess moisture should display either as spongy brakes (water boiling in region of cylinder) or as a moving part seizing up through corrosion. Neither is likely to happen suddenly and catastrophically so I can afford to take a personal view without endangering life and limb.

Ought to do it though, having bought the stuff