Rebirth of Khyber 1996 - Daniyal

[nnabeel]

YES, saw ur car yesterday. why the engine room is manually painted??

he can do the vacuum lines, but lets have the engine work done.

[nnabeel]

Another Khyber - Another Story

[miqdadkanani]

Actually, I didn't want to get the engine room painted initially as engine was already overhauled and fitted. But there was this service station just 100m ahead of my previous mechanic's place, so I took the opportunity when the engine was dismantled, wrapped plastic and boom.

[miqdadkanani]

just collected the head from machinist. Asked him what sized gasket should i go for and he suggested "standard". The overall thickness is 96mm.

[miqdadkanani]

i looked at the head closely and noticed that there is still space between the valve seat insert area and the smoothened surface of about ~0.5mm (slightly more than a fingernail). I asked the machinist about the limit and he showed me another head whose area around valve seat and the smoothened surface was almost zero. That, he explained to me, was the limit as per him. (

[miqdadkanani]

what exactly is meant by "lip" on the gasket? Will be going tomorrow morning

[Xulfiqar]

that machinist is smoking crack if hes saying that no material on the boss of the valve seat is acceptable. If you run such a cylinder head, the valve seat can dislodge, come out, break off and completely destroy the engine in a second. (its called dropped seat if you want to google it) The green areas you highlighted are called the fire ring sealing surface and they need to be chunky too - no erosion here and equally solid on the block otherwise the headgasket will fail once the engine warms up.

the red circles I made in the picture are the actual machining limit markers provided by the manufacturer on all cylinder heads (its almost standard practice except for some engines - and on those you cannot machine the head at all - e.g. Toyota MarkX heads - read my post about the VVTi timing codes.)

[Xulfiqar]

This is just an example, but notice the gasket has raised areas around the cylinder holes and larger ports, those raised areas are called "lips" - they are crushed down when tightening and make the seal.

If your gasket is plain and doesnt have such then you will need to use hylomar to seal it - use it as described above or watch the video below to understand what I was saying.

[capsat]

if malik saheb has returned the head after finishing and you are skeptical of the job jot down the reservation points take head back to shop discuss points with Malik saheb personally he or his son Rehan will reply all points, your poker face will tell them if you are dud or at peace.

Buy a tube of hylomar and insist irshad how to use it share the you tube clip, he is very open to learn from everyone anything new.

@Ser_GTR @syncview

[miqdadkanani]

I am satisfied with Malik sahab's job. Just concerned and worried about the condition of head and if I can clock 5-8k kms with it as I need the car in Ramadan. Will keep on checking in the scrapyard shershah for another head meanwhile.

[capsat]

if you go as the suggestions made by @Xulfiqar i believe you will successfully survive summers with AC.
i suggest:

1. pour 10W-40 PSO oil for 1st 1500 kms.
2. after that you please stick to 10 or 5 W-30 Shell Helix
3. fans working auto
4. pour coolant in system after 1500 km oil change by that time you will know if there is any seepage or leakage to be managed.

sir @Hassan1991 would you please create a fresh topic yourself [ as rebirth of Khyber 1989 - Daniyal ] and move @miqdadkanani khyber postings there so there is no jumble up. it took me a while to figure out the discussion is about 2 different vehicles. task finished completed vs progress of other member vehicle.

Thank you

[miqdadkanani]

That's great. Thanks @capsat

:
I have already bought zic x7 10-40. Should I go ahead with it for first 1500kms?

[miqdadkanani]

Also, should I still go for a standard gasket? I think the original one for khyber was 1.2mm. irshad didn't say anything, he told me to ask Malik sahab about it.

[miqdadkanani]

Mine is khyber 1996

[capsat]

go by suggestion of malik saheb, patience my friend patience use the vehicle as normal routine drive. let the vehicle roll 1st. keep an eye over temperature needle & expansion bottle.

[Xulfiqar]

When initial running without coolant mix dont use plain water, instead add about 250 to 400 ml of coolant so you have some corrossion/rust protection and also some lubricity for the water pump.

[Xulfiqar]

That corrossion and rust in the head and block hinders about 40% cooling system performance. Imagine the heat stress due to that!!!

And that stress is caused by owners themselves, because “koolent mehenga hota hai”

[helper_learner]

And that stress is caused by owners themselves, because “koolent mehenga hota hai”

Sir, ab to koolent rust bhi karta hy.

[hammadsohail]

Sasta coolant hamesha se hee rust karta hai,just look at the price difference Zic/Caltex cost 6 times more than local gaurd/osaka which is basically plain tap water with green color added to it, that's my opinion based on my experience khair now I'm using Zic, mehanga roye aik bar sasta roye bar bar

[Xulfiqar]

lol - people buying fake cartoon products believing it will work is their own fault.

and lots of car owners are devoid of the fact that coolant is to be collected in a clean container to be reused - I do it everyday on the cars I work on unless the coolant is bad (water pump failed and sent debris into system, system corroded etc)

owners stand idle while mechanic removes hoses to let the expensive liquid just waste away on the ground - I would murder such mechanic or have him pay for that wasted coolant.