1994 GL1500


Information and questions on GL1500 Goldwings (1988-2000)
Post Reply
randog
Posts: 10
Joined: Mon Jul 26, 2021 7:49 pm
Location: Smelterville, Idaho
Motorcycle: 1994 Honda Goldwing GL1500 Interstate

1994 GL1500

Post by randog »



2 Questions
1. What is the function of the Accumulator? My 94 Interstate doesn't have one.
2. What's the overflow reservoir rubber inlet on top referred to?
I've torn my bike apart trying to find an antifreeze leak. The only thing I can find that may be where the antifreeze is coming from is where a tube from the right radiator enters into the overflow plastic reservoir. The rubber is cracked.Not the tubing grommet?? that enters the reservoir. I don't see it's name in my service manual.


User avatar
WingAdmin
Site Admin
Posts: 22419
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (sold)
1998 XV250 Virago (sold)
2012 Suzuki Burgman 400 (wife's!)
2007 Aspen Sentry Trailer
Contact:

Re: 1994 GL1500

Post by WingAdmin »

randog wrote: Wed Aug 04, 2021 10:51 pm 2 Questions
1. What is the function of the Accumulator? My 94 Interstate doesn't have one.
2. What's the overflow reservoir rubber inlet on top referred to?
I've torn my bike apart trying to find an antifreeze leak. The only thing I can find that may be where the antifreeze is coming from is where a tube from the right radiator enters into the overflow plastic reservoir. The rubber is cracked.Not the tubing grommet?? that enters the reservoir. I don't see it's name in my service manual.
The accumulator is a reservoir for vacuum. When the engine is running and the throttles are not wide open, some vacuum develops in the intake manifold. This vacuum is stored (through a check valve) in the vacuum accumulator. This stored vacuum is used to actuate the cruise control actuator, which is vacuum-operated. Your Interstate does not have cruise control, so it will not have an accumulator.

If any part of the coolant system leading from the radiator to the reservoir is cracked, you're going to end up with leaks. What happens is, when the engine heats up, the coolant expands and will push up past the radiator cap, through the tube and into the reservoir. When it cools down, it contracts and sucks coolant back from the reservoir into the radiator.

If there is a crack in that tube or in the neck of the reservoir, instead of sucking coolant back, it sucks air. Next time it expands, it pushes more coolant into the reservoir, and at some point the reservoir is going to be full and you will have leaks. If the crack is large enough, you will get coolant leaking directly from it.
User avatar
ct1500
Posts: 1522
Joined: Wed Nov 10, 2010 8:09 pm
Location: Glastonbury,CT
Motorcycle: 1988 GL1500
Contact:

Re: 1994 GL1500

Post by ct1500 »

https://partsfinder.onlinemicrofiche.co ... RVE%20TANK
The #8 tube is a vent and overflow pipe, the #9 tube goes to the radiator neck.
Local and need repair help with your 1500, Valkyrie or ST please click contact
Nothing leaves my shop till its' perfect
This is what I do
randog
Posts: 10
Joined: Mon Jul 26, 2021 7:49 pm
Location: Smelterville, Idaho
Motorcycle: 1994 Honda Goldwing GL1500 Interstate

Re: 1994 GL1500

Post by randog »

Thanks. I still need to know if #8 is the tube entering the top of reservoir, what’s the name of the rubber piece that a 90 degree nylon piece that the tube slips over and plugs into the reservoir. The rubber plug needs to be replaced. I want to order one or must I order a new reservoir. Until I find out I’ll use silicone. Thanks for your time.
Crusty1
Posts: 65
Joined: Sat Jun 06, 2020 10:57 am
Location: Kansas
Motorcycle: 2000 GL1500SE
2007 ST1300A ABS

Re: 1994 GL1500

Post by Crusty1 »

#4 the level tube is a common point of failure. It dry rots form age. It is inserted into the tank first then the nylon tube which expands the rubber and keeps it tight in the tank.


Post Reply