leakdown results for mac l/t/ headers

H

hotrodman

New Member

Dec 28, 2003

90

0

0

Boston ,Mass

Jan 13, 2004

#1

• Jan 13, 2004

• #1

what do you think 99 cobra ,,with mac crap long tubes my results 51,000miles,.compression 170/175 per cyl. leakdown follows
#1-11%
#2-8%
#3-3%
#4-11%
#5-12%
#6-4%
#7-5%
#8-9% car uses 6qts.in 1500miles,no sign of oil on plugs,car smokes real bad when you get on it,also after driving steady speed 70mph and let off,and get back on it hard,if i dont drive hard it dont smoke at all,,help please!!!

 

missouri_guy197

New Member

Aug 31, 2002

1,441

1

0

St. Louis, MO

Jan 14, 2004

#2

• Jan 14, 2004

• #2

We've already told you that the long tubes have ruined your engine, what else do you want us to say? We've posted many threads about the same thing happening to others and they've needed their engines to be rebuilt, I'd plan on it if I were you too...

 

H

hotrodman

New Member

Dec 28, 2003

90

0

0

Boston ,Mass

Jan 14, 2004

#3

• Jan 14, 2004

• #3

willit have have fu##kup mt cylinders or not ..i can hone it ,,and but in h.d.pistons/rods ,,but if the cyl.are bad im just just going drive it awhlie. slow.

 

Firme

Founding Member

Aug 22, 2001

1,679

0

0

Sugar Land, Tx

Jan 14, 2004

#4

• Jan 14, 2004

• #4

yes the slag from the header that gets sucked into the engine through the egr valve will scar the cylinder walls

 

H

hotrodman

New Member

Dec 28, 2003

90

0

0

Boston ,Mass

Jan 14, 2004

#5

• Jan 14, 2004

• #5

damm it i was just hoping they gave me poor ring seal,because of the flaking into cyl../.or scaved so well this pisses me of bad i have a nice low mileage 99 cobra and it smokes like a james bond car !!!!ther goes $5000.00 should just trade it in at the dealer get a 2004 cobra any body want to buy a low mileage cobra that smokes.