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after getting things back together and getting the car started ('85) (smog delete, a/c delete, iac replace, tb air foil added, oil change, fuel filter change, fuel lines change, coolant hoses change, oil cooler hoses change - at the cooler) - the drivers side now has some sort of rattle sound - more so toward the front but the entire side - when I put the stethoscope on it it is not consistent - almost sounds like a couple of rocks in a can sort of - I let it go for a minute and revved to see if it went away - it did not - so I shut it down and now am hoping it is not something excessively tragic - does anyone have any suggestions or thoughts on what could have popped up like that? - it has not been on much at all this spring since all of this has started so I am really not sure what could have caused this noise out of no where?
engine temp when i noticed it yesterday was getting to 140 give or take - i was watching the idle after the iac install and the belt with the new delete stuff - so it was running for a few minutes 10 or so - then i heard it more toward the front - but definitely across the entire side - I do not know what a piston slap would sound like (or what it is). but it sounded higher and not deeper - i mean toward the top of the motor not in - i thought briefly it had something to do with the pump delete and the one screw that goes into the side of the head - but it felt tight - did not know if it could be too tight - or how sound can travel along
exhaust - I wondered when I first started it there was a little smoke on the passengers side - i dismissed it as a little oil got on the exhaust and burned off - I have not seen any since - I will try the belt thing
exhaust - I wondered when I first started it there was a little smoke on the passengers side - i dismissed it as a little oil got on the exhaust and burned off - I have not seen any since - I will try the belt thing
thanks
Once warm I'd only go a minute but you can do a couple on a cold engine.
the only thing I could think of that changed physically and was attached to the head on this side only was the bracket. I removed the circled bolt and spacer in the bottom pic circled in blue - it appears the sound may have left. I thought it was tight - my questions are how tight can I make that before breaking something - and maybe even the other question is - do I need that one? the top pic shows the triangular formation of the brackets - i wonder if that will be enough
the only thing I could think of that changed physically and was attached to the head on this side only was the bracket. I removed the circled bolt and spacer in the bottom pic circled in blue - it appears the sound may have left. I thought it was tight - my questions are how tight can I make that before breaking something - and maybe even the other question is - do I need that one? the top pic shows the triangular formation of the brackets - i wonder if that will be enough
thanks - I changed the pcv - just in case - I will check again with and without the bolt - 2 other thoughts/questions - is there a target torque for that bolt? bracket for pump? and with the set-up is it a necessary bolt - ? I realize extra stability - just curious as I had set mine with an extra piece in the bracket creating a more triangular bracket?
thanks again - I feel like I am close to finally driving it this year . . . .
it seems to be coming from the pcv - kind of radiating from that - it does not appear right at start up - it takes a minute or two then shows up more clearly -
even the new one - they had a rattle right out of the box - is that supposed to be that way?
is this a problem/concern - or nothing really - ?
it could- I suppose be a sound that has been there but was masked by a few other noises? or is this from a vibration that is new - - -
the belt seems to be rotating fine - with or without the extra bolt - it is not shaking or vibrating wobbling or otherwise - seems smooth
hopefully it's nothing - but I have not been that lucky lately - I am anxious to get back on the road - but i also do not want something to break and lose it for the entire summer
I had one of the pre-cats fail. The rattle was loud enough that I thought either the motor had suffered a major failure or the pressure plate or flywheel broke.
I had one of the pre-cats fail. The rattle was loud enough that I thought either the motor had suffered a major failure or the pressure plate or flywheel broke.
Just something else to check.
Yes, that happens frequently. Happened on my recent 87. very loud rattle. I have removed the cats and when I did big chunks fell out. No more rattle of course.
it seems to be coming from the pcv - kind of radiating from that - it does not appear right at start up - it takes a minute or two then shows up more clearly -
even the new one - they had a rattle right out of the box - is that supposed to be that way?
is this a problem/concern - or nothing really - ?
it could- I suppose be a sound that has been there but was masked by a few other noises? or is this from a vibration that is new - - -
the belt seems to be rotating fine - with or without the extra bolt - it is not shaking or vibrating wobbling or otherwise - seems smooth
hopefully it's nothing - but I have not been that lucky lately - I am anxious to get back on the road - but i also do not want something to break and lose it for the entire summer
any thoughts?
thanks for the help
Sean
You can disconnect the PCV and plug the hose for a test. It won't hurt anything to run without it for a few minutes. If it is the PCV, it's not hurting anything to let it rattle, but it points to a probable vacuum issue. Check all the hoses for splits and put a vacuum gauge on it. It should be in the 18-20" range at idle. I'd also check the timing.
rattle question -lost -help
