Talha Kırmızıaslan

مقالات Talha Kırmızıaslan في مدونة RSS Kumru Automotive.

Drawing: the boost hose that should sit on the turbo outlet pipe has come off its joint, the loose clamp has slipped sideways along the pipe and air is escaping through the gap; the turbo wheel is spinning too fast, soot has built up in the particulate filter on the exhaust line; the second hose, from the intercooler to the engine, is sound and its clamps are in place; the magnifier shows the separated joint: the pipe, the slipped clamp on it, the open end of the hose and the air escaping in between

12 أكتوبر 2026السيارات والمركبات التجارية الخفيفة

Boost hose leak or burst: the symptoms, and does it damage the engine?

A burst or leaking boost hose costs power and brings a whistle and black smoke. The turbo and the DPF take the damage; a pressure or smoke test finds the leak.

Drawing: a turbocharger in section; the oil feed pipe is undone at the turbo and lifted clear, only a thread of oil reaches the turbo, and the shaft and bearings run dry and hot; the magnifier shows the filter inside the banjo bolt blocked with carbon

7 أكتوبر 2026خطوط زيت التيربو

Blocked turbo oil feed pipe: symptoms, checks, and can you just clean it?

A blocked feed pipe has no symptom of its own. How to prove it at the pipe and at the turbo, and when a cleaned pipe is acceptable.

Drawing: engine on the left, radiator in the middle, coolant reservoir on the right; a thin overflow hose runs from the pressure cap on top of the radiator down into the reservoir, and the arrows beside it show coolant going to the reservoir when hot and back to the radiator when cooling; the upper radiator hose between the engine and the radiator has collapsed in the middle and is marked in red; the magnifier shows the cap in section: a large spring-loaded pressure valve with a small vacuum valve in its centre

30 سبتمبر 2026السيارات والمركبات التجارية الخفيفة

Bad radiator cap symptoms: what pressure it should hold, and why hoses swell or collapse

How to spot a failing radiator cap, what pressure it should hold, why hoses swell or collapse, and how a cap is tested.

Drawing: a car seen from above; the brake fluid reservoir at the front and the pipes running from it to the brakes at the four wheels; an open service book in the middle with dotted arrows reaching out to the four wheels, and no order numbers on the wheels; the magnifier shows the bleed screw at one wheel: a clear hose pushed onto the screw, its end dipped in a jar of brake fluid, with air bubbles in the hose and in the jar

18 سبتمبر 2026السيارات والمركبات التجارية الخفيفة

How to bleed brakes: one person, two people, and the order on a car with ABS

Bleeding brakes after a hose or pipe change: the two-person pedal method, three one-person methods, wheel order and the scan tool step on cars with ABS.

Drawing: a wheel seen from the side, with a hot brake disc and the caliper gripping it, and heat lines above the wheel; the flexible brake hose runs from the caliper to its mounting on the body and looks sound from outside; the magnifier shows the hose cut lengthwise: the outer cover is intact, the inner liner has bulged and narrowed the passage, the fluid gets through towards the caliper but the arrow in the return direction is cut off in front of the bulge

10 سبتمبر 2026السيارات والمركبات التجارية الخفيفة

Collapsed brake hose symptoms: a dragging wheel, pulling to one side, an overheated brake

A collapsed brake hose can trap pressure at one wheel: it drags, runs hot and the car pulls. The test that separates it from a seized caliper.

Drawing: the same brake pedal drawn three times in side view: on the left a spongy pedal that springs, in the middle a low pedal resting close to the floor, on the right a pedal that sinks towards the floor while it is held; at the far right the brake hose running down to the wheel brake, and the magnifier shows the spot where the hose swells under pressure

2 سبتمبر 2026السيارات والمركبات التجارية الخفيفة

Spongy or sinking brake pedal: air, a hose or the master cylinder?

A spongy, a low and a sinking brake pedal are three different faults: air, a swelling hose, a leak or the master cylinder. What to check, in order.

Drawing: a flexible brake hose lying horizontally in the middle, with a thin straight line running along its length; its left end is connected to the corner of the caliper, its right end sits in the bracket on the body and is held by a clip; beyond the bracket are the steel brake pipe and its nut, the nut not yet tightened, with thread showing in the gap; the magnifier shows the bracket, the clip and the pipe nut up close, and a single arrow shows that the nut is tightened last

22 أغسطس 2026السيارات والمركبات التجارية الخفيفة

Replacing brake hoses: the order of work, how long it takes and what drives the cost

Replacing a brake hose: the order of work, the labour time in two carmakers’ documents, five cost items, and how the car brakes if a hose bursts.

Drawing: two brake hoses of the same length with the same end fittings, one above the other: the rubber hose on top is swollen under pressure, the steel braided hose below is not; the magnifier shows the weak point of the braided hose, where it enters the swaged collar

12 أغسطس 2026السيارات والمركبات التجارية الخفيفة

Braided brake lines vs rubber: are stainless steel brake hoses worth it?

Braided stainless brake lines shorten pedal travel but add no braking force. How they differ from rubber, what DOT means, where they fail.

Drawing: a hydraulic steering circuit; in the fluid reservoir, which has a steering wheel symbol on its cap, the fluid is below the minimum line; next to it the belt-driven pump, and at the bottom the rack with a bellows at each end; the pressure hose runs from the pump down to the rack and the return hose from the rack back to the reservoir; at the fitting on the pump end of the pressure hose there is a wet, cracked patch with one drop of fluid under it; the magnifier shows this patch

2 أغسطس 2026السيارات والمركبات التجارية الخفيفة

Heavy steering and power steering fluid loss: is it the hose, the pump or the rack?

Hydraulic steering turns heavy when fluid is lost, and fluid is only lost through a leak. How to rule out EPS and check hoses, pump and rack.

Drawing: a turbocharger seen from the exhaust side and the steel oil feed line that leaves the engine, runs right beside the turbo and joins the top of it with a banjo bolt; heat radiates from the turbo, a heat shield wraps the part of the line nearest the turbo, there is burnt oil residue on the turbo housing and the pipe is dry; the magnifier shows the banjo end in section: the O-ring where the pipe enters the banjo is marked in red, with a fine oil mist around it

18 نوفمبر 2025خطوط زيت التيربو

Mini Cooper S (R56, N14) turbo oil feed line leak: why it leaks and what to check when replacing it

On the N14 the turbo oil feed line leaks at the O-ring joint on its banjo end. Signs, effect on the turbo, the heat shield bulletin and replacement.

Drawing: a single turbocharger in section, drawn without its pipes or the engine; four causes are written on its four sides: dirty oil, a foreign object from the intake or the exhaust, overspeed and a dry first start; the magnifier shows the air-side wheel from the front, with a blade chipped by a nut that got in

12 أغسطس 2025خطوط زيت التيربو

The new turbo failed again: what to check besides the oil pipes

A turbo that fails again with new oil pipes was killed by something still on the engine: dirty oil, debris, overspeed or a dry first start.

Drawing: a turbocharger in section; the oil feed pipe comes up from the engine, runs over the hot exhaust side and reaches the shaft, the return pipe drains the oil back to the engine; the magnifier shows a pipe narrowed by carbon

18 نوفمبر 2024خطوط زيت التيربو

Should you replace the oil pipes when you fit a new turbo?

Yes. The feed pipe is renewed with every turbo; the return pipe is renewed or proven clear. Why, on which engines it is critical, and the order of work.

Drawing: the path the air takes to the engine, from the air filter to the turbo, through the turbo hose to the intercooler and on to the engine; the crankcase breather hose leaves the engine, joins the intake between the filter and the turbo and feeds oil vapour into it; oil pooled in the bottom of the intercooler is marked in red; the magnifier shows the thin oil film on the inside of the turbo hose

8 أكتوبر 2024خطوط زيت التيربو

Is oil in the turbo hose normal? Telling a normal film from a fault

Some oil is normal and comes from the crankcase ventilation. With pooled oil, blue smoke or oil consumption: the order of checks, turbo last.

Drawing: a turbocharger in section; the oil return pipe is narrowed at one point, so oil fills the bearing housing and seeps past both ends of the shaft into the exhaust side and the air side; the magnifier shows the seal ring on the shaft with oil passing it

3 سبتمبر 2024خطوط زيت التيربو

Turbo leaking oil and blue smoke: return pipe, seals or crankcase pressure?

A turbo that leaks oil is often sound. Return pipe, crankcase pressure, air filter, oil level; what oil at each end points to, and the order of checks.

Drawing: above the threaded seat in the engine, two banjo bolts for the end of the oil feed pipe are shown side by side in section; one still has the small wire-mesh filter inside, the other has had it removed; either can go into the same seat; the magnifier shows the filter clean and starting to clog

24 يوليو 2024خطوط زيت التيربو

The banjo filter in the 1.6 HDi / TDCi turbo oil feed pipe: keep it or remove it?

Turbo suppliers, the vehicle maker’s service note and workshops disagree on the 1.6 HDi banjo bolt filter. Who says what, and what to do.

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