ok so last 3 days iv noticed a ratle on deaclleration i thought it was my exhaust but after invertergation its not...

i just rebuilt a carb and was about to install it
then i noticed my omp rod wasnt hooked up ahhh horror i had tied ir in before with wire but i guess it broke.

now im not sure how long its been unhooked but im guessing for some time in a period of 1-4weeks.

i finished puttin my carb on and continued to tune it with that done i checked my oil it was just on empty which can be really bad not to positive how low is dangerous so i toped it up the car only has 15psi at 750-800rpm. which im sure is ok...

onwards....
so the car runs good its driveable and i can still floor it like a maniac..


i tested compresion its in the 70's so its still livin a lil
took the radiator cap off and no bubbles..
took the belts off and ran the car still rattling.."so its not the alt or waterpump or fan as i have a electric one.

i went down the road and borrowed a stethascope while leavin the parking lot the tentioner for the surpentine belt on my mums ford explorer fell off ...crap...

so i continued to poke around and the noise is comin from the front cover area its really hard to pin point the area but around the the main pully and end of dizzy but really the noise is all around the front oil cover
the sound is like it metalic and is flapping upon rotation
the engine is from a sa 79 "12a"do these years have a chain tentioner an posibly lose?

any help or info would be apreciated i will upload a video of the noise soon

cheers
kiwi

 

i had a 12a that made a rattle exactly as you describe. upon further investigation i found the oil pump drive chain had stretched (goddam car thieves joyriding at 9krpm+). after fixing that it still had a death rattle, when i pulled it apart, the housings had chatter marks ~.75-1.5mm deep, the bearings had spun, and the stat gears were missing bits of teeth. the noise was being transferred along the e-shaft to the front pulley area.





on a side note it ran that way for about 1k miles before i tore it down



isaac

 

thanks...
ill remove the front cover and get a new chain.

 

Well, dont do it yet. Take all the belts out and let the car idle. Now, either get a auto stetoscope or a piece of pipe as listening device to pin-point where the noise is coming from.

if you really need to pull the cover, there a couple of issues that you should know but I will wait til then.

 

damn blowie you have all the luck bro.....fingers are crossed man

 

[QUOTE=wackyracer]Well, dont do it yet. Take all the belts out and let the car idle. Now, either get a auto stetoscope or a piece of pipe as listening device to pin-point where the noise is coming from.

if you really need to pull the cover, there a couple of issues that you should know but I will wait til then.[/QUOTE



its hard to pin point whenbut it almost sounds the same all around the front cover mainly near the pully out all the same.

i have a pretty good idea how to do the front cover
lock the flywheel heat the front nut to break the thread lock use 1/2" impact gun
remove oil pan take bolts off front cover shell pop off??


from what scotts told me im going to need front e shaft seal,front cover gasket,chain,front cover o ring, while im at it upgrade to a se oil pump 17.5mm
also might as well do the oil pressure regulator mod...

 

not much to do with luck lol

its all probaly caused from high abuse i learnt how to do donuts a few weeks back and now im really good at it

tho i have new tyres that are now balled and discoved a thing called wheel hop lol

but when the rattle happend it was out of the blue drove fine to work
no noises it snowed all day the i started the car bang fuckt up noise

any how its all plus's for me... i get to learn somthin new and spend more money on the damn car...

 

Wacky is refering to keeping the torrington bearings in place, but since you are pulling the engine to do this, it will be a non-issue, as long as it's reassembled with the flywheel down and you check that the bearings are in place.

 

yup, the bearings and such. just the pull the motor out to inspect the front bearings and such. Its easier. Besides, you still need to kinda drop the oil pan to reinstall the front cover. It can be done with the pan in place BUT it will not easy task due to the large nut under the front cover.

If you need torrington bearings, let me know. I got extras. Besides, NoLucks GSL-SE is coming my way to get the wacky touch.

 

will do thanks wacky and scott ill keep ya posted...
just need the damn weather to clear up since i anint got no garage....

 

if the chain is loving the case there will be debris in the oilpan, drain your oil through a cloth and take a look, AL fragments would be the front cover, steel would be stat teeth.

isaac

 

Good call on pulling the front bearing. I hope his is still good, he has put in a lot of work putting his car together from whatever parts he can scrounge up. Blyfly msns me nearly every night with questions and has come a long way in a short time, even with being stoned 1/2 the time, lol.

 

damn...in my recently purchased 85 GSL with a 4k rebuild ive noticed a rattled when im letting the car warm up. i dont know if or when it stops. i initially thought it was coming from the AC compressor. i guess this weekend ill try to pinpoint it and hope its not coming from the front cover.

 

if you pull the dizzy blwfly you can use a screwdriver to see if the oil pump chain is overly loose without pulling the cover. if it isnt the pump drive chain then you probably have much bigger problems.

isaac

 

Pain, I like how you spun that bearing and managed to chew it up on both sides. Excellant job of f...ing it up.

 

more details please.

 

read my previous post, on page one, about apex chatter/stat gear chatter. the noise gets transmitted along the e-shaft to the front of the motor. it sounds like its right up at the front but really its farther in. the OP said he may have run it out of oil, thats a good way to spin a bearing spun bearing leads to chipped stat teeth/noise. i would REALLY suggest draing the oil and checking for debris. steel debris is stat gears/bearings, Aluminum debris is probably the oil pump chain making contact(which is apparent extremely rare, it happened to one of my motors, and ive only ever heard of 1-2 isolated cases besides mine).


isaac

 

He drained the oil and hasn't found flakes. He'll know more when he pulls the pan and checks for anything that may have settled to the bottom.

 

man.. i just hope mine is something other than apex chatter. i just bought this damn car and it has like 4-5k on a rebuild. damn.

i would drain the oil but i changed it last weekend so anything that would be in it is already gone. i still have the old oil though. ill strain it and see if i can find anything.

 

when u drain the oil it may not let all the flakes out instead they could be sitting in the lowest point of the pan iv removed most of my stuff so far i should have the engine out by friday night if its sunny..... fingers crossed

 

this is my DD though. i may be able to drop the pan this weekend.

 

good luck to you man

isaac

 

if u drop ur pan dude dont worry about gettin a gasket just use the oil grade silicone gasket u get at parts stores.. **** i have a couple engines that have normal silicone

 

its lookin pretty sad so far....

 

is all that chrome flakes and stationary gears teeth?