destructo_low

At my local parts store, I found a molded, rubber heater hose, #71898. (The guy helping me hated it as I measured each possible candidate with a digital caliper.)

It fits the intake runners and plenum body perfectly. Dayco lists it having a 1.75" inside diameter, but I measured it slightly larger.

Using one of the old connectors I removed as a template, I cut the hose into about nine or ten equal sections on the bandsaw, and I replaced all of the connectors on my plenum.

You can also find a connector there to connect 3" intercooler piping. With a little persuasion, it will slip over the plenum connection on the underside and the throttle body. Bingo.

Bilal928S4

Pictures? Year of car? What are you trying to achieve?

destructo_low

My car is a 1984 model.

I had to remove my plenum, and the boots were dry rotted. They cracked sliding them over the intake runners to clear the plenum. I needed a cheap, locally available fix. I paid a little over fifteen dollars for the hose.

I wasn't trying to achieve much besides putting my car back together on a Sunday evening without reusing worn out components. I will probably sand blast my grimy, German hose clamps soon.

GlenL

Nice work.

I see that hose listed for $12 on-line.

You got 8 connections out of 1 radiator hose?

destructo_low

That is correct, GlenL.

I made sure in the parts store with the tried and trusted method, holding your fingers the approximate distance apart while hopping them down the hose and counting.

You can actually get a coupler off each of the ends after the curve as well. I ended up with about ten sections, and I placed them on a table and eyed for evenness. I discarded the two I had cut slightly too high or crooked.

I was using the band saw's sliding fence to keep the edges square.

Also, the intercooler connector for the throttle body connection will be too wide. I had to cut it on the bandsaw too. It was a little scary with the fingers that close to the blade. Luckily, there are fine lines molded into the connector, so you can keep on track around the hose with whatever method you use to cut it.

Ducman82

thats not a bad idea. i ended up getting 8 pre cut silicon 4 ply sections from an online race shop. was not to bad price wise.

destructo_low

I bet it looks better too. You can slightly see some of the reinforcing braid in the middle of the hose plys, and I don't think generic radiator hose comes in flashy colors like molded silicon.

hacker-pschorr

I'm confused, are the originals not available anymore?

depami

Good job on a quick fix.

hacker-pschorr

Too funny, trying to read this thread (and post) from my phone, the post with the images was blank.....explains a few things

Now that I see the photo, looks good!

17prospective buyer

You might want to go with originals... anything but OEM could cause a catastrophic failure and perhaps even destroy your motor.

bills928

Ducman.... Do you remember where you got the silicone ones online?
Im having trouble finding the silicone ones in the correct size (ID)