1962 235 head removal issue. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Isaiah92260 · 12-15-2018, 08:06 PM

Today I was about to pull of the head from the block and came across a small problem. As I was about to pull the last push rod, I faced a clearance issue. Can’t pull it out because the push rod sits under the firewall concave and maxes out when it his the firewall. I’m not sure what to do because it seems obvious that I can’t pull it out with it stuck in there.

Also the head was coming off pretty easily, and I see some rust on the block. Pretty sure that means it’s been leaking for a while right? Hope I don’t have to resurface the block or the head.

Any help would be very appreciated, I would love to be able to drive my truck on Christmas.

**The Rocknrod** · 12-15-2018, 09:15 PM

Is it still protruding into the block when it's lifted all the way up as far as it will go?

Isaiah92260 · 12-15-2018, 09:18 PM

Quote:

Originally Posted by The Rocknrod

Is it still protruding into the block when it's lifted all the way up as far as it will go?

Yes. It sits in there pretty good and comes out as far as the firewall will allow it

**jayoldschool** · 12-15-2018, 09:19 PM

Lift tail of trans with a jack, tilt engine forward, should clear.

**The Rocknrod** · 12-15-2018, 09:44 PM

That's an awesome idea jayoldschool has.

I had a GMC Panel that sat under the "tunnel" so to speak and I didn't think I had that problem when I removed my head once. Different year/series though.

Isaiah92260 · 12-15-2018, 10:17 PM

Quote:

Originally Posted by jayoldschool

Lift tail of trans with a jack, tilt engine forward, should clear.

Oh okay I’ll try that first thing in the morning! Thank you!

Isaiah92260 · 12-15-2018, 11:29 PM

Quote:

Originally Posted by The Rocknrod

That's an awesome idea jayoldschool has.

I had a GMC Panel that sat under the "tunnel" so to speak and I didn't think I had that problem when I removed my head once. Different year/series though.

Dang that’s a nice motor!

**Captainfab** · 12-16-2018, 01:23 AM

I have heard of people drilling a hole in the cowl to enable removal of that pushrod and then plugging the hole with a rubber plug or similar.

Isaiah92260 · 12-16-2018, 01:59 AM

Quote:

Originally Posted by Captainfab

I have heard of people drilling a hole in the cowl to enable removal of that pushrod and then plugging the hole with a rubber plug or similar.

That’s a good idea actually! Lol I’m not sure if should do that since my truck is pretty unmolested though

ImpalaJim · 12-17-2018, 07:24 AM

I would just loosen up tranny and raise the back Been there done that.

Isaiah92260 · 12-17-2018, 04:33 PM

Quote:

Originally Posted by ImpalaJim

I would just loosen up tranny and raise the back Been there done that.

I ended up taking the size cover off and pulling out the lifter since the rest of them needed to be put back into place anyways.
Thanks everyone

Bimus · 12-19-2018, 11:24 PM

What engine oil are you using ? looks very clean .

Isaiah92260 · 12-19-2018, 11:38 PM

Quote:

Originally Posted by Bimus

What engine oil are you using ? looks very clean .

I’m not sure, it’s whatever was in the truck when I got it lol

Isaiah92260 · 12-19-2018, 11:50 PM

Does anyone know which is the best way to clean out the threads on the block?

**The Rocknrod** · 12-20-2018, 02:15 PM

Is this a "trick" question?

chevy_mike · 12-20-2018, 07:00 PM

Use a cleaning tap, which are made to clean threads without cutting new ones. Use some WD-40 or similar to help the tap clean up and not bind. Do not use a regular tap as you do not want it to cut the threads.

**cwcarpenter98** · 12-20-2018, 11:24 PM

Take a normal bolt, cut 3 or 4 vertical slots in the threads and it will do the same thing as a cleaning tap

Isaiah92260 · 12-21-2018, 12:00 AM

Quote:

Originally Posted by chevy_mike

Use a cleaning tap, which are made to clean threads without cutting new ones. Use some WD-40 or similar to help the tap clean up and not bind. Do not use a regular tap as you do not want it to cut the threads.

I’ve never heard of that, okay thank you for that info! Can I get a cleaning tap at Home Depot?

Isaiah92260 · 12-21-2018, 12:01 AM

Quote:

Originally Posted by cwcarpenter98

Take a normal bolt, cut 3 or 4 vertical slots in the threads and it will do the same thing as a cleaning tap

That sounds really easy! I’ll try that if I can’t find a cleaning tap.

Does anyone happen to know what the thread size is?

**cwcarpenter98** · 12-21-2018, 12:37 AM

You can take one of the original bolts to any hardware store and use the measuring thingys to find the size. While you are there, you can get a bolt or two to cut slots in

Isaiah92260 · 12-22-2018, 12:34 AM

Quote:

Originally Posted by cwcarpenter98

You can take one of the original bolts to any hardware store and use the measuring thingys to find the size. While you are there, you can get a bolt or two to cut slots in

Oh okay. I found a bolt. It’s 1/2”-13!

Just for reference this is the regular taps, not the cleaning kind right?

I’m going to still cut slots into a bolt I found.

Is there a certain I’m supposed to cut slots into the new bolt?

**cwcarpenter98** · 12-22-2018, 11:15 PM

Sorry to respond so late, haven't been on my laptop all day.

That tap looks like a regular tap, not a cleaning one.

To cut the bolt, use a dremmel or something of the sort and start at the bottom of the bolt, then go in a straight ish line directly up towards the head of the bolt. You don't have to cut extremely deep into the bolt, just get a little past the deep part of the threads. Sorry it's hard to explain without a pic, but my buddy at the restoration shop I worked for showed me this trick. Unfortunately, I don't have a dremmel to make one, otherwise I would

chevy_mike · 12-31-2018, 05:46 PM

https://www.summitracing.com/parts/sum-900200

12-15-2018, 08:06 PM	#1
Isaiah92260 Registered User Join Date: Jul 2015 Location: Whittier, CA Posts: 851	1962 235 head removal issue. Today I was about to pull of the head from the block and came across a small problem. As I was about to pull the last push rod, I faced a clearance issue. Can’t pull it out because the push rod sits under the firewall concave and maxes out when it his the firewall. I’m not sure what to do because it seems obvious that I can’t pull it out with it stuck in there. Also the head was coming off pretty easily, and I see some rust on the block. Pretty sure that means it’s been leaking for a while right? Hope I don’t have to resurface the block or the head. Any help would be very appreciated, I would love to be able to drive my truck on Christmas. Attached Images

12-15-2018, 09:15 PM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: 1962 235 head removal issue. Is it still protruding into the block when it's lifted all the way up as far as it will go? __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

12-15-2018, 09:19 PM	#4
jayoldschool Moderator Join Date: Dec 2012 Location: ON, Canada Posts: 2,150	Re: 1962 235 head removal issue. Lift tail of trans with a jack, tilt engine forward, should clear.

12-15-2018, 09:44 PM	#5
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: 1962 235 head removal issue. That's an awesome idea jayoldschool has. I had a GMC Panel that sat under the "tunnel" so to speak and I didn't think I had that problem when I removed my head once. Different year/series though. Attached Images __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

12-16-2018, 01:23 AM	#8
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 1962 235 head removal issue. I have heard of people drilling a hole in the cowl to enable removal of that pushrod and then plugging the hole with a rubber plug or similar. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

12-17-2018, 07:24 AM	#10
ImpalaJim Registered User Join Date: May 2014 Location: Kewanee IL Posts: 283	Re: 1962 235 head removal issue. I would just loosen up tranny and raise the back Been there done that.

12-19-2018, 11:24 PM	#12
Bimus Registered User Join Date: Dec 2018 Location: Farmington NM Posts: 112	Re: 1962 235 head removal issue. What engine oil are you using ? looks very clean .

12-19-2018, 11:50 PM	#14
Isaiah92260 Registered User Join Date: Jul 2015 Location: Whittier, CA Posts: 851	Re: 1962 235 head removal issue. Does anyone know which is the best way to clean out the threads on the block? Attached Images

12-20-2018, 02:15 PM	#15
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: 1962 235 head removal issue. Is this a "trick" question? __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

12-20-2018, 07:00 PM	#16
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: 1962 235 head removal issue. Use a cleaning tap, which are made to clean threads without cutting new ones. Use some WD-40 or similar to help the tap clean up and not bind. Do not use a regular tap as you do not want it to cut the threads. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

12-20-2018, 11:24 PM	#17
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,421	Re: 1962 235 head removal issue. Take a normal bolt, cut 3 or 4 vertical slots in the threads and it will do the same thing as a cleaning tap __________________ Christian Carpenter 1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

12-21-2018, 12:37 AM	#20
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,421	Re: 1962 235 head removal issue. You can take one of the original bolts to any hardware store and use the measuring thingys to find the size. While you are there, you can get a bolt or two to cut slots in __________________ Christian Carpenter 1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

12-22-2018, 11:15 PM	#22
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,421	Re: 1962 235 head removal issue. Sorry to respond so late, haven't been on my laptop all day. That tap looks like a regular tap, not a cleaning one. To cut the bolt, use a dremmel or something of the sort and start at the bottom of the bolt, then go in a straight ish line directly up towards the head of the bolt. You don't have to cut extremely deep into the bolt, just get a little past the deep part of the threads. Sorry it's hard to explain without a pic, but my buddy at the restoration shop I worked for showed me this trick. Unfortunately, I don't have a dremmel to make one, otherwise I would __________________ Christian Carpenter 1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

12-31-2018, 05:46 PM	#23
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: 1962 235 head removal issue. https://www.summitracing.com/parts/sum-900200 __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...



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