258 Intake Manifold Gasket
JeeperChris
Old Time Jeeper
- Posts
- 1,234
- Thanks
- 1
- Location
- Michigan
- Vehicle(s)
- '79 CJ5, 258 I6, T150 w/Dana20, Dana30 front and AMC20 rear. My first Jeep! I'm looking forward to doing some minor upgrades and restoration while enjoying the ride.
First I have two questions I need help with, then I will write up the story for those who are interested in what happened, because, well you know, it's a Jeep so there's always a story...
No1: Does the intake manifold gasket go on dry? I remember smearing a bit of blue silicon on the old Chevys back in the day.
No2: Does anyone have the Bolt size and Thread Pitch for the intake and exhaust handy?
Ok, the story. About 3 weeks ago I put the Jeep in the shop since I don't have the tools anymore to do a lot of bigger work. I will add tools later. It went in for a new master cylinder and assorted brake parts, Moser 1-piece axles, and full exhaust system. This system meant the ugly header with all the gas leaks could finally go away. Fully new system from the ex-manifold all the way to the tail including a Cat.
He was pretty booked up so he started it last Wednesday and called me today to say it was done. Great! I was getting off work early enough to catch him before he closed for his vacation weekend. Picked it up, it was great - quiet, smooth and fun like it should be. I was a happy camper.
Got home (only a mile down the road) and parked it in the garage. Popped the hood. The washers that hold down the intake/exhaust in that weird sort of Jeep way were crooked. I inspected a little more. The two manifolds were not sitting flush with each other as they should. The intake manifold gasket was in the back seat, not on the engine.
So, with snow in the forecast for this Sunday/Monday I am going to do this alone. Doesn't seem like too big a deal I'm just used to V-8's. I would also like to replace the bolts with studs, that's why I wanted to know if anyone knows the size off-hand. And that's where I am now. I'll put some pics in the next block.
No1: Does the intake manifold gasket go on dry? I remember smearing a bit of blue silicon on the old Chevys back in the day.
No2: Does anyone have the Bolt size and Thread Pitch for the intake and exhaust handy?
Ok, the story. About 3 weeks ago I put the Jeep in the shop since I don't have the tools anymore to do a lot of bigger work. I will add tools later. It went in for a new master cylinder and assorted brake parts, Moser 1-piece axles, and full exhaust system. This system meant the ugly header with all the gas leaks could finally go away. Fully new system from the ex-manifold all the way to the tail including a Cat.
He was pretty booked up so he started it last Wednesday and called me today to say it was done. Great! I was getting off work early enough to catch him before he closed for his vacation weekend. Picked it up, it was great - quiet, smooth and fun like it should be. I was a happy camper.
Got home (only a mile down the road) and parked it in the garage. Popped the hood. The washers that hold down the intake/exhaust in that weird sort of Jeep way were crooked. I inspected a little more. The two manifolds were not sitting flush with each other as they should. The intake manifold gasket was in the back seat, not on the engine.
So, with snow in the forecast for this Sunday/Monday I am going to do this alone. Doesn't seem like too big a deal I'm just used to V-8's. I would also like to replace the bolts with studs, that's why I wanted to know if anyone knows the size off-hand. And that's where I am now. I'll put some pics in the next block.