Head Questions

[Asimonsen]

well to put it simply my family is a pack of morons,

my brother had been driving this thing around on a blown head gasket and i got it off his hands when he got tired of the lack of power
(witch was actualy caused by the brakes sticking)

anyway i wanted to know what u guys thought about the head on this 4d55, its a little pitted but should i just slap it back on when i get some bolts and hope for the best?

 

[85TDW50]

Have a Machine Shop check it for Warpage & Cracks if your brother was driving it around with a bad head gasket. If it's not warped or cracked, the machinist can advise you where to go from that point

[wrngwae]

x2 the gaskets are not cheap for these motors by the time you pull it again you could have had it checked by a reputable shop. and then you know for sure!!!!

[Asimonsen]

cool, what would a shop typicly charge for a checkup like that?

o and what torque do the head bolts usualy get set at, an assosiate with a diesel ranger 4d55 said somthing like 100 ft/lbs but i just want to check to make sure

[RusTy Max]

Check the Haynes manual for the torque specs... But the price of the pressure check and to have the head 'decked' usually runs about $75 (at a good shop).

[wrngwae]

there is a specific 2 step torque process to that head and there is a specific pattern to remove it and a different one to reinstall it,,,,,,,,,,,,buy a manual......you will thank yourself!!!!!!

[pdub]

Be careful not to have them remove too much if you have the head decked. Especially if it has been done before. I hear there is only so much you can remove before you risk the valves meeting the pistons.

Wish I could tell you the minimum deck height/head thickness specs, but I won't have access to my manual for a few months.

It's interesting - it looks like the openings to your pre-combustion chambers are larger than on mine. What year is this motor?

pdub

[Asimonsen]

1984