Perkins 4-107 Won't Stop Blowing Head Gaskets - Page 3

Chief Engineer · 22-10-2009, 21:20

I reviewed the video

A couple things

That doesn't look like a head with only 4 hours on it

The Valve cover gasket looks as old as the hills. Any head I ever send out for work always comes back completely clean...no paint. I paint after the job is done and the engine is operational

The pistons show signs of pitting....this is a sign of water intrusion at some point
(sometimes).

I would invest in a Magnaflux Crack detection Kit. You can get them from Graingers.

When you pulled the injectors out was there any rust around any of them?

BTW...I never pull a head with injectors still in.

I would look for cracks around the water passages or in the bores that the injectors are seated in.

Overall this engine shows signs of electrolysis at some point in its life peeling paint, white dusty residue.

Chief Engineer · 25-10-2009, 07:28

Funny.....no response?

Chief Engineer · 29-10-2009, 15:50

No answer yet? Just curious.

chihuahuas · 30-10-2009, 12:51

New images..looks like there is a missfit on the headgasket....Looks like she may not have 4-107 liners in there.

Stillraining · 30-10-2009, 15:53

Well from what I see its compleat rebuild time.

30-10-2009, 12:51	#34
chihuahuas Registered User Join Date: Oct 2009 Location: Hayes Va Yorktown Boat: should skippers write checks Posts: 14	Liners look like they dont line up right oo the head gasket?? New images..looks like there is a missfit on the headgasket....Looks like she may not have 4-107 liners in there.

30-10-2009, 15:53	#35
Stillraining Registered User Join Date: Oct 2008 Location: Puget Sound Boat: Irwin 41 CC Ketch Posts: 1,821	Well from what I see its compleat rebuild time. __________________ "Go simple, go large!". Relationships are everything to me...everything else in life is just a tool to enhance them.

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22-10-2009, 21:20	#31
Chief Engineer Commercial Vendor Join Date: Aug 2006 Location: North of Baltimore Boat: Ericson 27 & 18' Herrmann Catboat Posts: 2,432	I reviewed the video A couple things That doesn't look like a head with only 4 hours on it The Valve cover gasket looks as old as the hills. Any head I ever send out for work always comes back completely clean...no paint. I paint after the job is done and the engine is operational The pistons show signs of pitting....this is a sign of water intrusion at some point (sometimes). I would invest in a Magnaflux Crack detection Kit. You can get them from Graingers. When you pulled the injectors out was there any rust around any of them? BTW...I never pull a head with injectors still in. I would look for cracks around the water passages or in the bores that the injectors are seated in. Overall this engine shows signs of electrolysis at some point in its life peeling paint, white dusty residue.

25-10-2009, 07:28	#32
Chief Engineer Commercial Vendor Join Date: Aug 2006 Location: North of Baltimore Boat: Ericson 27 & 18' Herrmann Catboat Posts: 2,432	Funny.....no response?

29-10-2009, 15:50	#33
Chief Engineer Commercial Vendor Join Date: Aug 2006 Location: North of Baltimore Boat: Ericson 27 & 18' Herrmann Catboat Posts: 2,432	No answer yet? Just curious.