alali3091 zulfiqar bhai ne aap ko bilkul sahi guide kiya hai.
Aap ko complete head Karachi mein mil jaye ga both chinese and original, absolutely no need to put any H22 or B20B in your car, aap ki car buhat problem kare gi. CRV ke engine forward inclining nahi aur wiring bhi har koi nahi kar sakta, USDM engine ki diagram bhi nahi mile gi. Aap ki car ka transmission C9 hai, buhat torque nahi utha sakta 115-130 NM max when new, do not push 25 year old tranny.
Zulfiqar bhai jaise log aap ko lahore ya karachi mein nahi milen ge aur aap buhat tension mein aa jao ge. Aap ko automatic linkage mein bhi modification karne pare gi nahi tu gear upshift or kickdown mein bhi jerk feel ho gi. Cng par backfire bhi hoga agar correct ignition ya mixture nahi ho, EFI mein bohat sare sensor hote hein CNG par buhat trouble karte hein especially auto transmission mein.
aap 32/36dgev ya buhat power chahiye tu 38dges twin barrel carb kabar market mein find karo aap ki car 1st gear mein 50km/hr easily touch kare gi. uis mein 32mm ka primary aur 38 mm ka secondary down draft barrel hai, pehle first open hoga, full accelerator par 38mm ka open hoga, electric choke bhi hai, 38dges mein 2 38mm ki barrel eik sath open hoti hein full accelerator aur petrol par aap ko eagle eye civic bhi back view miroe mein nazar aaye gi, fuel consumption will increase. Aap ko CNG ki achi imported venturi plaza se mil jaye gi aur Landi renzo STAP 100B advancer bhi mil jaye ga.
Karachi mein plaza market mein new bhi mil jaye ga but 15-19K Rs ka hoga, chinese one. Rings/Pistons, valve clearance, ignition timing distributor service or compression testing ke baad aap ka engine bilkul naya ho jaye ga.
If you want to A20A3 or A18A swap is best, there is no replacement for displacement.
Mere paas 500 pages ka technician manual bhi hai CA4/5 85-89 Accord aur Mercedes W124 W202 or BMW E36 ka. If you want mein aap ko email bhi kar doon ga.