Hey guys, a few days back I noticed my car only at startup would knock like 2 or 3 times then go away? Been doing it every time I start it? Was wondering if anybody experienced something like this before? Thanks
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93 White Notch all Orig. 87 White Notch all Orig. 92 Black Notch Project AFR 165''s, FTI cam, Vortech T- trim, Holley systemax (fox lake ported) under knife. 92 White Hatch DD GT40 crate....slow
i think its the crankshaft...when you change the oil will it sound worse?
^^^i DOUBT IT..ALTHOUGH I 'm sure there is wear on it ..more so it'd be the bearings....and changing oil won't make it sound worse unless a thin grade of oil like 0w 30 or 5w 20 was used..if there is wear on bearings going to a 15w 40 or 20w 50 is first step
do pending on the type of knock you have if it only does it when you start it then goes away it could be a lifter knock. if it is then add some good old engine restore at each oil change it will dissapear.
WTF are you two talking about?!? Lifters TAP and Main and bottom ends knock. Lifter tap is not caused by the lifter lifter pumping up (that's how hydraulic lifter work), lifter tap is usually cause by the lack of the lifter pumping up. And you don't change out the rockers for bad lifters.
stanguy306 what oil are you using and when was it last changed? With that many miles your bearing clearances are going to get larger, you may be able to use a thicker oil but this is just a band-aid/temp sulotion till the bearings are replaced.
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89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works 2003 Mach 1: programer, exhaust, 4.10'
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Knock at start up - 
