weird head bolt question

N

njoliver

Member

Nov 25, 2009

259

0

17

Columbus OH

Jan 15, 2010

#1

• Jan 15, 2010

• #1

alright this isnt a 5.0 question but it is a general engine question I think. I bought a truck for real cheap with a freshly rebuilt 350 in it. There is white assembly grease coming out of the head bolts ( outside ones). I dont know if they are backing off or what? Any one ever have this before? should I just torque them? Any help would be appreciated thanks

 

7

71 blown vert

New Member

Jan 5, 2010

13

0

0

Toronto, Ontario

Jan 15, 2010

#2

• Jan 15, 2010

• #2

Does it smell like coolant? Lower bolt holes need to be sealed and if not they can leak or if its a very small leak it can foam a little and thicken up. Just a guess though.

 

SpartaPerformance

10 Year Member

Nov 5, 2006

2,517

61

89

Long Island NY

Jan 15, 2010

#3

• Jan 15, 2010

• #3

I've never used or seen or heard of anyone using assembly lube on head bolts. I'ld make sure it's not some kind of coolant or oil foaming up. You can try torqueing them and see what happens.

 

rainman38501

New Member

Jan 15, 2010

6

0

0

cookeville tn

Jan 16, 2010

#4

• Jan 16, 2010

• #4

head bolts

anytime you have a bolt that the threads go into coolant passages you will use a sealer on the threads!this is common in engine building but most people never see it if it is done properly! not enough and you have leaks, too much and you have a white mess!

 

N

njoliver

Member

Nov 25, 2009

259

0

17

Columbus OH

Jan 16, 2010

#5

• Jan 16, 2010

• #5

it is like thick white grease, it doesnt smell or look like coolant. I can wipe it off and it comes back out? I never this happen before but I have been finding alot of wierd things with this engine

 

M

mr_josh

Founding Member

Oct 11, 2000

87

1

9

Jan 16, 2010

#6

• Jan 16, 2010

• #6

If it's coming back out, you've almost certainly got oil mixing with coolant. Hate to say it but I'd immediately pull those heads, check that they're true, and then bolt them back on with sealant on the right bolts.