Intake Valve Deposite Problem

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Joined:Wed Jul 21, 2010 9:51 am
LPG System:BT
Intake Valve Deposite Problem

Post by CHAN12345 » Mon Nov 29, 2010 10:52 am

Dear All,
my vehicle Toyota KR42-Townace EFI Type Engine, Recently i had problem while starting engine one tapped rod used to come out form rocker arm. then I went to mechanic & opened the head after we found intake valve had some deposite( IVD) like glue, after clening this problem overcomes. Please let me know why it happend, after convert to gas only 12000Km driven. CHAN12345

Joined:Mon Sep 03, 2007 8:48 pm
LPG System:Prins VSI
Car:BMW 540iA Sport
Location:All over the UK

Re: Intake Valve Deposite Problem

Post by mak-uk » Wed Dec 29, 2010 1:36 pm


This could be 'heavy ends' which is an oily-wax substance from the gas. However, this should be caught by the LPG filters.
Site Owner
2001 BMW 540i Auto Sport Saloon
~300 BHP; ~320 ft/lbs, Prins VSI system

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