|
Author
|
Topic: new head gaskets and overheating
|
topless67
Journeyman Posts: 13
From: okinawa
Registered: Jan 2002
|
posted 04-11-2004 10:38 AM
   
I blew a head gasket, then I replaced all the gaskets, ported the heads some, put lifers and bigger cam ect. Now my car seems to over heat fast. The new water pump seems to flow more than the old water pump.On the head gaskets I installed them correctly with the part that say s 'front' in the front. But I noticed that the block
and heads had water jackets in the rear of the block, so I made some small holes in the
head gaskets so that the water can flow from the block to the heads. the previos head gaskets blocked the flow. Previously the engine did tend to get very hot on the highway. Does making holes in the rear part of the head gaskets, and letting the water flow between the heads and block re-route the water flow and make my engine overheat to fast? I have good engine timing, and the carb seems to be tuned just fine. The thermosat
is pretty new also. Thanks Rich
IP: Logged |
68GEETEE
Journeyman Posts: 28
From: TX, USA
Registered: Apr 2004
|
posted 04-11-2004 10:52 AM
Shouldnt have to make holes in a head gasket. The front jackets are blocked to force water throught the block to the rear, then up through the heads. If you are saying the rears were blocked, maybe you didnt get the correct gaskets for your motor. Are you absolutely sure you know the year of your engine? I am thinking you have a newer engine in the car, and the gaskets you ordered are for a '67, which may not fit what you now have. Just a thought.
IP: Logged |
topless67
Journeyman Posts: 13
From: okinawa
Registered: Jan 2002
|
posted 04-11-2004 11:07 AM
If I remeber right the block had D4, which should be a 302, the car doers have a 302,
I checked the stroke. The heads say 68 302 4v. The car seems to to be put together with mix and match parts. I don't know why, when I bought the car a few years ago, it only had 59,000 original miles. I had to make up a timing pointer, because the timing
cover had the pointer on the wrong side, the passenger side. The dampner had the marks on the driver side. The water pump
still has the intake on the passenger side.I'll have to do some more troubleshooting,
I'd hate to think that making the holes in the gasket, made things worse. Thanks Rich
IP: Logged |
Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
|
posted 04-11-2004 11:46 AM
Two questions.
1) Do you have a thermostat? SBF's get hot very fast without one or at least a restrictor ring.
2) What intake gaskets did you use.
The later heads use the larger water port opening.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,& '04
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
topless67
Journeyman Posts: 13
From: okinawa
Registered: Jan 2002
|
posted 04-11-2004 04:03 PM
I did use a thermostat, and it does seems
to work correctly.I used the intake gaskets that had the
smaller openings. I'll take a look at the itake gaskets that were on there before to see what was on there. But the openings in the heads weren't
very big. I was wondering if making extra holes in the head gasket messed things up. I didn't see any water leaks either. Thanks Rich
IP: Logged |
topless67
Journeyman Posts: 13
From: okinawa
Registered: Jan 2002
|
posted 04-12-2004 07:31 AM
I checked for leaks, and didn't see any, then I put a different radiator cap that I had on, then I put in an extra half quart of oil in the car. The car didn't over heat at all. After driving a few miles, I parked the car and didn't see any leaks. I went in the mall for about 10 minutes, then when I came back, I saw a few puddles of coolant.I looked for leaks, then I noticed that the
water is coming from the heater core. the heater core never leaked before, but it probably didn't like sitting around for a few months. I'll bypass it tomorrow and see whay happens. Also my alternator is messed up, it's a 3G alternator, but it is only putting out
12.8 volts max. My car only has a large electric fan from a 95 Ford Crown Vic
police car in it. So the low voltage would
make the fan spin slower. Also maybe the cooling system needed to get rid of some air pockets. I'm hoping that works, I really don't want
to remove the heads again. Thanks Rich
IP: Logged | |
Mustangsandmore Forums
UBBFriend: Email This Page to Someone! 
