C2 heat riser valve gutted?

[Gene M.]

Re: C2 heat riser valve gutted?

I have my FI spacer ground out round and I live in central Florida. Just trying to work up enough gumption to make the change. I hate crawling under my car, including for oil changes. My last one was a disaster, what with driving off the ramps, and a pinched o-ring that dumped lots of oil on my driveway. Fortunately, no damage, but I'm getting too old for this stuff.

Stu Fox

I hear what your saying............. Laying on the ground under the car has lost it's appeal. I just set up a 4 post lift.

[Gary R.]

Re: C2 heat riser valve gutted?

I did that 35 years ago and never had a problem with it. I don't recall welding anything, I might have plugged the hole for the rod I can't recall. I have been running headers the past 8 years now and don't even know what I did with that hear riser, probably in the loft with all the old exh manifolds. I can't say I felt any improvement either, the car ran fine.

[Jim D.]

Re: C2 heat riser valve gutted?

I hear what your saying............. Laying on the ground under the car has lost it's appeal. I just set up a 4 post lift.

I've had my lift for almost 15 years. If I had to get rid of it, I would quit working on cars. I'm too old and broken to be laying on the ground (actually, it's the getting back up that's really hard).

Back on subject, if you gut the valve, you will fail the "heat riser function" portion of the "PV" test.

[Donald O.]

Re: C2 heat riser valve gutted?

I've had my lift for almost 15 years. If I had to get rid of it, I would quit working on cars. I'm too old and broken to be laying on the ground (actually, it's the getting back up that's really hard).

Back on subject, if you gut the valve, you will fail the "heat riser function" portion of the "PV" test.

I've owned this 67 convt for 29 1/2 years and never had it judged and don't intend to start now. If I did take it to an NCRS meet I would only put it in the Sportsman area. Its all stock and original, its just that getting it judged isn't for me. So the heat riser failing a PV means very little to me.

My car, my choice.

[Jim T.]

Re: C2 heat riser valve gutted?

I have my FI spacer ground out round and I live in central Florida. Just trying to work up enough gumption to make the change. I hate crawling under my car, including for oil changes. My last one was a disaster, what with driving off the ramps, and a pinched o-ring that dumped lots of oil on my driveway. Fortunately, no damage, but I'm getting too old for this stuff.

Stu Fox

Have you considered a change to a spin off type filter to avoid the pinched gasket of the original type filter in a container. I use AC DELCO PF2232 filters on three of my Corvettes. This is a AC DELCO Duraguard filter listed for diesel GM engines, this filter is not a light weight in actual weight of of the filter. It also is made in USA. I believe the composition of this filter is superior to the regular AC DELCO for my Corvettes.

[Stuart F.]

Re: C2 heat riser valve gutted?

Jim;

Yes, I have considered it. I have a kit that I bought many years ago (believe it is a "Mr. Gasket), but it uses a much smaller diameter filter. I even bought a supply of Wix spin on filters for it, but deceived I liked the heavy gauge canister. Perhaps I will look at this again, due to the later kits seem better and use a larger diameter filter. Guess I'll at least use up the filters I have for the cannister first, only take it in for someone to put the car on a lift.

Thanks for the reminder. I may have them do the spacer change too.

Stu Fox

[James W.]

Re: C2 heat riser valve gutted?

I agree. I had to replace the exhaust donut on my '65 L79 and removal of the clamp to allow the pipe to be free'd up. I actually removed the entire pipe because I had a bad exhaust donut. The pipes were really rusty so it took so time to work the pipe loose from the rear section of exhaust pipe. A little , KROIL or WD-40 sprayed at the pipe joints ahead of time isn't a bad idea to help seperate the pipe joint. A rose bud torch or butane torch to put a little heat in the joint to expand the pipe joint helps also.

Regards,

James West

Loosening the clamp at the transmission will give enough movement if your pipes aren't rusted together solid.

[Timothy B.]

Re: C2 heat riser valve gutted?

I hear what your saying............. Laying on the ground under the car has lost it's appeal. I just set up a 4 post lift.

Sometimes when I am under the car on the floor I take a nap.. :-)

[Stuart F.]

Re: C2 heat riser valve gutted?

Tim;

You made me laugh. I thought; "is there any better place to take a nap then under your vintage Vette?" I think I'll make up a padded creeper for just that purpose. And at my age, in fact, I may just put that in my last W & T, nay, never mind.

Stu Fox

[Timothy B.]

Re: C2 heat riser valve gutted?

Stu, Sometimes I make myself laugh at the things I do. Laughing is good, I am glad I made you smile...

[Terry M.]

Re: C2 heat riser valve gutted?

I have had a spin-on filter on the 1970 leave a gasket behind, and I didn't notice it. Spilled a quart or two of Penzoil 30 weight (that's how long ago it was) on the driveway at my folk’s house. It was a gravel drive, so it didn't much matter.

I just wanted to point out that the spin-on is no guarantee of gasket synchronicity. It is just a matter of paying attention to what one is doing. And I acknowledge that gets harder and harder as I age. I assUme others have the same experience as we advance the clock of life.