Exhaust Mercruiser

Exhaust Mercruiser

MERCRUISER EXHAUST MANIFOLD RISER KIT V8 305 350 CHEVY
MERCRUISER EXHAUST MANIFOLD RISER KIT V8 305 350 CHEVY
Paypal   US $415.95
Exhaust Manifold Riser kit 305 350 4 Mercruiser
Exhaust Manifold Riser kit 305 350 4 Mercruiser
Paypal   US $424.61
Mercruiser Marine 43L V6 Exhaust Manifold 4 Riser Kit
Mercruiser Marine 43L V6 Exhaust Manifold 4 Riser Kit
Paypal   US $489.50
MERCRUISER 4CYL EXHAUST ELBOW
MERCRUISER 4CYL EXHAUST ELBOW
Paypal   US $25.00
MERCRUISER 4 CYLINDER EXHAUST PIPE AND ELBOW
MERCRUISER 4 CYLINDER EXHAUST PIPE AND ELBOW
Paypal   US $25.00
Mercruiser 18654 001 Exhaust Bellows OEM 18654A1 NEW
Mercruiser 18654 001 Exhaust Bellows OEM 18654A1 NEW
Paypal   US $10.95
MERCRUISER EXHAUST MANIFOLD V8 454 502 CHEVY MARINE
MERCRUISER EXHAUST MANIFOLD V8 454 502 CHEVY MARINE
Paypal   US $129.95
Mercruiser Marine 350 V8 Exhaust Manifold 4 Riser Kit
Mercruiser Marine 350 V8 Exhaust Manifold 4 Riser Kit
Paypal   US $449.50
Mercruiser 496 Exhaust 454 502 Bravo Exhaust Mercury
Mercruiser 496 Exhaust 454 502 Bravo Exhaust Mercury
Paypal   US $499.00
MERCRUISER OMC VOLVO EXHAUST Y PIPES ADAPTERS
MERCRUISER OMC VOLVO EXHAUST Y PIPES ADAPTERS
Paypal   US $1.00
Mercruiser 350 exhaust parts y pipe connectors elbow
Mercruiser 350 exhaust parts y pipe connectors elbow
Paypal   US $39.95
V6 1 PIECE MANIFOLD CONVERSION KIT MERCRUISER EXHAUST
V6 1 PIECE MANIFOLD CONVERSION KIT MERCRUISER EXHAUST
Paypal   US $725.95
MERCRUISER FORD 351302 EXHAUST MANIFOLD PORT SIDE
MERCRUISER FORD 351302 EXHAUST MANIFOLD PORT SIDE
Paypal   US $105.00
MERCRUISER FORD 351302 EXHAUST MANIFOLD STB SIDE
MERCRUISER FORD 351302 EXHAUST MANIFOLD STB SIDE
Paypal   US $115.00
Mercruiser Exhaust Riser from 1970s inline 6
Mercruiser Exhaust Riser from 1970s inline 6
Paypal   US $10.00
50 57 L Exhaust Manifold Riser Kit 4 V8 Mercruiser
50 57 L Exhaust Manifold Riser Kit 4 V8 Mercruiser
Paypal   US $699.99
GLM Marine Exhaust Manifold 229 262 43 V6 Mercruiser
GLM Marine Exhaust Manifold 229 262 43 V6 Mercruiser
Paypal   US $147.21
MERCRUISER EXHAUST RISER ELBOW FOR LOG MANIFOLDS V8
MERCRUISER EXHAUST RISER ELBOW FOR LOG MANIFOLDS V8
Paypal   US $79.95
Mercruiser 816219a5 Exhaust Manifold
Mercruiser 816219a5 Exhaust Manifold
Paypal   US $100.00
MERCRUISER 470 170 37 EXHAUST MANIFOLD WITH TANK
MERCRUISER 470 170 37 EXHAUST MANIFOLD WITH TANK
Paypal   US $99.99
ALUMINUM V6 KIT MERCRUISER MARINE EXHAUST MANIFOLD
ALUMINUM V6 KIT MERCRUISER MARINE EXHAUST MANIFOLD
Paypal   US $925.95
Stainless exhaust tips pair boat mercruiser
Stainless exhaust tips pair boat mercruiser
Paypal   US $175.00
Mercury Mercruiser Exhaust Elbows 4 inch for V 8 V 6
Mercury Mercruiser Exhaust Elbows 4 inch for V 8 V 6
Paypal   US $40.00
Water Drain Plug Screw Kit 4 Mercruiser Exhaust Cooling
Water Drain Plug Screw Kit 4 Mercruiser Exhaust Cooling
Paypal   US $14.99
MERCRUISER EXHAUST MANIFOLD AND RISER KIT V8 454 MARINE
MERCRUISER EXHAUST MANIFOLD AND RISER KIT V8 454 MARINE
Paypal   US $495.95
THRU THE TRANSOM EXHAUST MERCRUISER HI PERFORMANCE BOAT
THRU THE TRANSOM EXHAUST MERCRUISER HI PERFORMANCE BOAT
Paypal   US $559.95
MERCRUISER QUICKSILVER MARINE EXHAUST ELBOW 22 15269
MERCRUISER QUICKSILVER MARINE EXHAUST ELBOW 22 15269
Paypal   US $19.99
Mercruiser GIL DRY exhaust tail pipes stock bravo holes
Mercruiser GIL DRY exhaust tail pipes stock bravo holes
Paypal   US $500.00
Mercruiser GIL exhaust TRS tail pipes 3
Mercruiser GIL exhaust TRS tail pipes 3
Paypal   US $500.00
2 Marine Exhaust Manifolds 229 262 43 V6 Mercruiser
2 Marine Exhaust Manifolds 229 262 43 V6 Mercruiser
Paypal   US $307.76
Mercruiser Alpha Bravo exhaust y pipe seal kit 41802
Mercruiser Alpha Bravo exhaust y pipe seal kit 41802
Paypal   US $8.99
MERCRUISER EXHAUST BELLOWS 18 2750 32734A3 18654A1 NEW
MERCRUISER EXHAUST BELLOWS 18 2750 32734A3 18654A1 NEW
Paypal   US $17.86
Mercruiser 25 30 Litre Exhaust Riser low hours
Mercruiser 25 30 Litre Exhaust Riser low hours
Paypal   US $100.00
1994 Mercruiser 30L Exhaust Manifold with Elbow
1994 Mercruiser 30L Exhaust Manifold with Elbow
Paypal   US $30.00
Mercruiser 30 Litre Intake Exhaust Manifold low hours
Mercruiser 30 Litre Intake Exhaust Manifold low hours
Paypal   US $150.00
Mercruiser PreAlpha V8 Exhaust Y Pipe 70241
Mercruiser PreAlpha V8 Exhaust Y Pipe 70241
Paypal   US $45.00
Mercruiser V8 GM Exhaust Manifolds Risers
Mercruiser V8 GM Exhaust Manifolds Risers
Paypal   US $255.00
Mercruiser PreAlpha 70s V8 GM Exhaust Manifolds
Mercruiser PreAlpha 70s V8 GM Exhaust Manifolds
Paypal   US $190.00
CMI Tailpipes BBC 454 502 Boat Exhaust Mercruiser
CMI Tailpipes BBC 454 502 Boat Exhaust Mercruiser
Paypal   US $399.00
MerCruiser Inline 6 250ci 165hp Exhaust Manifold
MerCruiser Inline 6 250ci 165hp Exhaust Manifold
Paypal   US $449.95
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Exhaust Mercruiser

1998 Baja Hammer, 320 HP I/O mercruiser problems?

ok, so i figured out that my V8 engine is only running on 5 cylinders. 4 years ago, i had a similar problem and had my Exhaust Manifolds replaced. 2 years later, i had the same problem and had the manifolds replaced again. now, i need them done again. somethings not right here....i shouldn't have to replace these every 2 years. even when i got a higher-grade material, it still only lasted 2 years.
i'm winterizing it by the manual so i don't know what to do. any suggestions? i really don't want to pay 3 grand just to have them break in 2 years....

Are you in Salt Water? Do you spend lots of time at wide open throttle, too?

By this time if you've had water leaking or seeping into the cylinders as a result of the exhaust manifolds, you very likely have so chewed up rings and a bad cylinder wall surface finish. I know this engine well. We did/do the camshaft for the 454 Magnum which comes in that engine from the factory. We went 550 hrs wide open and full load at the Mercruiser plant with this engine before they stopped the test.

A little different than yours, but the same basic engine. And I build them daily. I see lots of problems which are a direct result of what you are talking about.

I would not do a compression test, I would do a 'Leak Down' test. This will test how tight the ring and valves seal. If you don't have a leak down tester, you can get them online all day long from a company that sales specialty engine tools called Power house Products. Then you'll need an air compressor and each cylinder during the test needs to be at top dead center with both intake and exhaust valves closed.

Feel free to contact me.

Exhaust Manifold GASKET SET MERCRUISER Exhaust Manifold GASKET SET MERCRUISER
Sale Price: $24.49

Aluminum Marine Exhaust Manifolds 305 350 V8 Mercruiser Aluminum Marine Exhaust Manifolds 305 350 V8 Mercruiser
Sale Price: $315.88

59235 Brand New GLM Marine Exhaust Aluminum Manifolds for 1983 + GM V8 305/350 Mercruisers with 4" elbows. Complete set with 2 year warranty. These are the lightweight aluminum perfomrance manifolds...

Upper Exhaust Hose, Mercruiser V8 Manifold With End Riser & Mercruiser 4-Cylinder Manifolds Mercruiser Part # 70981A3 Upper Exhaust Hose, Mercruiser V8 Manifold With End Riser & Mercruiser 4-Cylinder Manifolds Mercruiser Part # 70981A3
Sale Price: $34.99

Upper Exhaust Hose For Use With Mercruiser V8 Manifold With End Riser & Mercruiser 4-Cylinder Manifolds - Mercruiser Part # 70981A3. Upper Exhaust Hose works on Mercruiser 4-Cylinder Manifolds in the following engines 120 hp/2...

Valve-Exhaust-Std Mercury - Mercruiser 44182A-1 Valve-Exhaust-Std Mercury - Mercruiser 44182A-1
List Price: $30.90
Sale Price: $13.07

Valve-Exhaust-Std Mercury - Mercruiser 44182A-1

Mercury Mercruiser Exhaust Elbow GM V-6 V-8 807988A 2 Mercury Mercruiser Exhaust Elbow GM V-6 V-8 807988A 2
Sale Price: $165.95

OEM Mercury Mercruiser Exhaust Elbow. 4 inch (102 mm) O.D., 7 degree down angle, Ceramic coated Fits MCM/MIE GM V-6 & V-8 with center rise outlet exhaust manifold (2002 & older) Mercury Part# - 807988A 2


1999 Formula Fastech 312 Starboard engine run (Corsa Exhaust).

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