Stealth Conversions, The Parts Division of JTR (Jaguars That Run)

Coolant Sight Glass, Transitional

Stealth Conversions
The Parts Division of JTR (Jaguars That Run)

Home/Site Map | About JTR | Jaguar | Chevy S-10 | Chevy TPI & TBI | Astro Van V8 | Volvo 200 | Volvo 700 | Datsun Z Car
Please Use the Books Ordering Form to order manuals!
Coolant Sight Glass, Transitional  
5/8" heater hose splicer/restrictor and 5/8" to 3/4" transitional heater hose splicer

Above: COOLANT SIGHT GLASS showing air in the cooling system.

Above: COOLANT SIGHT GLASS showing air removed from the cooling sytem with the air bleeder.

Coolant Sight Glass, Transitional,
plain (no bleeder, no steam vent fitting) —
$48
Please specify Size.
See list below for hose sizes.
(shipping included, UPS Ground)

Specify
hose size

Coolant Sight Glass, Transitional,
with bleeder —
$50
Please specify Size.
See list below for hose sizes.
(shipping included, UPS Ground)

Specify
hose size

Coolant Sight Glass, Transitional,
with bleeder and steam vent fitting — $53
Please specify Size of both Transitional Sight Glass hose and Steam Vent hose.
See list below for hose sizes.

(shipping included, UPS Ground)

Specify
hose size
Specify
steam vent hose size

Coolant Sight Glass/Air Bleeder, Transitional

The coolant sight glasses are made from aluminum. The sight-glass itself is made from fused glass that is rated to 500 degrees F, and 1500 psi. The sight glass has a petcock on top for bleeding air out of the system, and, if needed, an extra 1/8 NPT fitting  for a steam vent tube used on LT1 and LSx engines,

This part comes in three transitional versions and three non-transitional versions. The transitional versions are listed below. For non-transitional versions, click here.

1. Sight Glass, plain. This version has no air bleeder and no steam vent fitting. When adding to your shopping cart, please specify a both the Sight Glass size and the Transitional size needed, chosen from the lists below.

2. Sight Glass with Air Bleeder. Please specify both Sight Glass and Transitional sizes, choose from lists below.

3. Sight Glass with Air Bleeder and Steam Vent Fitting (for LT1 and LSx engines). Please choose steam vent size when adding to cart (1/4", 5/16", or 3/8") and also specify the TransitionalSight Glass size from list below.

Available Hose Sizes for Transitional Sight Glass—

You must specify the transitional hose sizes in the field provided when you add this part to your shopping cart. The follwing list gives hose sizes we always have available.

If the size transition you want is not on the list, we can make you custom-sized parts. Enter your sizes in the space provided above when adding it to the cart.

1-1/4" to 1-3/8"

1-1/4" to 1-1/2"

1-1/4" to 1-3/4"

1-5/16" to 1-9/16"

1-1/2" to 1-3/4"

1-9/16" to 1-3/4"

1-3/4" to 2"

NOTE: For a non-transitional version of this Coolant Sight Glass/Air Bleeder, click here

Air in the cooling system can cause big problems, from overheating due to foaming, and to corrosion that rots and clogs radiators.

According to a cooling system engineer, 2% air in the system can cause 8% less heat transfer, 4% air in the cooling system can cause a 38% loss in heat transfer.

With engine swaps, such as the LS1 into Mazda RX-7's, where the radiator is lower than the engine, many of the overheating problems are caused by air in the system.  The coolant sight glass will allow you to purge the air out of the system with the bleed screw. 

In racing applications, when the engine is running at high rpms, the sight glass will allow you to diagnose a foaming problem caused by cavitation. With cavitation problems, it is often necessary to slow the water-pump with underdrive pulleys, or change to a coolant that has anti-foaming characteristics.

 

Corrosion Prevention.

When using Dex-Cool coolant, air in the cooling system is reported to cause corrosion problems, including turning the coolant into rust that clogs coolant passages and heater cores.

One way to prevent problems with Dex-Cool is to use a Stant 10230 pressure cap, which has a spring loaded valve that prevents air from getting into the cooling system.

The Stant 10231 cap is floppy, and the valve hangs loose, allowing air to get into the cooling system more easily when the coolant recovery tank is low on coolant.

 

Last updated 09/14/2012

 

 

Home/Site Map | About JTR | Jaguar | Chevy S-10 | Chevy TPI & TBI | Astro Van V8 | Volvo 200 | Volvo 700 | Datsun Z Car


Jump Back to the Top

JTR engine swapping manuals are available directly from JTR Publishing,
As well as through a number of retailers, including:
Summit Racing
(S-10: Part #JTR-S10; Jaguar: Part #JTR-JAG),
JEGS
(S-10: Part #116549; TPI & TBI: Part #117942),
Steve Smith Autosports
(S-10: Part #S212; TPI & TBI: Part #S195), and
Classic Motorbooks
(S-10: Part #116549; TPI & TBI: Part #117942;
  Jaguar: Part #118438; Datsun Z: Part #115501; Volvo 200: Part #122587).

 

Last updated 09/14/2012


© JTR
All rights reserved.