Broken cam gear

hotcobra03 · Sep 2, 2008

03 Cobra back together!

Spent the week end rebuilding top half of engine and re-installing engine. Its a poormans job 2 valves . U.M. Bless my engine 4 me.

hotcobra03 · Sep 9, 2008

Need some help asap

Car was running perfect .stopped 4 red light .green came i hit gas and car felt like it blewup its pinging loud and no power .it starts backup with no problem , my quick guess is coil/plugs . Any one have idea

cobra1923 · Sep 9, 2008

So no warning? Were you able to limp it home at low RPM and idles fine? FRPP would be my guess

hotcobra03 · Sep 9, 2008

Limp to parking lot.i did pull electric plug at fprs. No change .just did heads .changed fuel filter 2 days ago had a problem with water on coils on passenger side .

Uncle Meat · Sep 9, 2008

The "pinging" is what concerns me... The car just fell flat on it's face huh? Sure nothin' let go in that head you just installed?

U.M.

hotcobra03 · Sep 9, 2008

Will look at that 2! Thier is no cel on and no smoke but sounds like its running on half of the engine.

LaserSVT · Sep 9, 2008

Any leaks, oil in the water or vice versa?
Pull the plugs and see if there is any phyisical dammage.

hotcobra03 · Sep 10, 2008

Found broken cam gear! Just had heads done.im not blaming shop , looks like a part that could go at any time.have 2 pull cover to retrive keyway. The other half of gear is wedged behind the timing guide .not touching chain.it broke at idle,i had no choice but to keep it running ,i was in a 6 lane both directions.im worried about the valves they had to hit pistons?

Uncle Meat · Sep 11, 2008

Yeah I think that unless you have a bore-scope you'll have to yank that head back off and perform a visual inspection to make sure you didn't damage the vales & pistons.

U.M.

hotcobra03 · Sep 11, 2008

This was on passenger side head.the otherside has 2 big marks from valves on cyl 6.did a compression ck to find problem.driver side was 180 all 4 of them.the marks can be seen by eye with piston up and good light.

hotcobra03 · Sep 18, 2008

Heads are off again

UM looks like 6 intake valves hit.what would be your suggestion on cleaning bottom end ,when sprockets broke the chains did rub into the cover and over broken sprockets

TheDukeOfEarl · Sep 18, 2008

They hit just like I thought they would. What do you mean clean the bottom end? If it was my motor I would do a full rebuild. But thats just me.

hotcobra03 · Sep 18, 2008

The passengerside shows no sign of hitting the other side has marks .im on a low to no budget!can i remove oilpan and spray it down or is that wasting my time?

TheDukeOfEarl · Sep 18, 2008

hotcobra03 said:
The passengerside shows no sign of hitting the other side has marks .im on a low to no budget!can i remove oilpan and spray it down or is that wasting my time?

This should really all be in one post. Can a mod combine these posts?

At the very least I would have the heads both gone through by a good shop. chances are good you have bent valves. How deep are the moons in the pistons? You can flush it all out and hope for the best but it is a grnade with the pin pulled. It will go off. just a matter of when.

hotcobra03 · Sep 24, 2008

New follow up .headshop repaired valves ,and covered new gaskets and bolts , reimbursed me for the 3 new camgears and adjuster.um the guy had the balls to tell me that this wouldnt happen to a real mechanic,i had to give a copy of fords step by step instructions to prove him wrong.

Uncle Meat · Sep 25, 2008

TheDukeOfEarl said:
They hit just like I thought they would. What do you mean clean the bottom end? If it was my motor I would do a full rebuild. But thats just me.

I totally agree, but he may not have the funds to cover the cost.

hotcobra03 said:
New follow up .headshop repaired valves ,and covered new gaskets and bolts , reimbursed me for the 3 new camgears and adjuster.um the guy had the balls to tell me that this wouldnt happen to a real mechanic,i had to give a copy of fords step by step instructions to prove him wrong.

Take his comments with a grain of salt and then move on. You're lucky they agreed to help you at all really. Now make sure you never use that shop again!

Can you explain how the head shop repaired bent valves? Or were they replaced?

U.M.

Uncle Meat · Sep 25, 2008

I cleaned this thread up and merged all 4 of hotcobra03's head related threads into one.

U.M.

hotcobra03 · Sep 25, 2008

Thanks um . The shop installed 4 new intake valves .Russel Duffin out of sa texas was the shop who did the work .russ is top notch .idt he would have refunded me with out a fight if i was at fault.should have car together on sunday

LaserSVT · Sep 25, 2008

I am woried about thoes pistons though. You said there is pretty visable dammage to them? I do believe they are already the weak point in our engines. Gonna have to be extra careful not to boost in 5th or 6th

hotcobra03 · Sep 26, 2008

The first valve mark was done at around 60k miles. The engine has been fine,maybe we drive it hard enough .at 218 it still has orig. Clutch in it

Broken cam gear

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