Hoses

[steve6864]

Can I go to my local parts store for a driver side water pump hose? Is there a cross reference number(Gates?) or another car part I can use? The long hose,from water pump to metal tube.$25.00 plus shipping from Houston seems a little high,plus the last one I got from them was super long,a lot of un-needed hose. Thanks.

[sdg3205]

You can certainly get a hose, but form fitted? No.

[sdg3205]

Also FYI - I got a length of hose from Napa at one point to do some cooling system maintenance. The cost was absolutely outrageous - $35 for 3 ft IIRC. Our vendor prices are often quite reasonable.

[Jonathan]

Our vendor prices are often quite reasonable.

+1

I got a set of replacement wipers for my Pontiac G8 and Generous Motors charged me $93 for the pair. Replacement wipers for the DeLorean are 10 bucks.

[David T]

+1

I got a set of replacement wipers for my Pontiac G8 and Generous Motors charged me $93 for the pair. Replacement wipers for the DeLorean are 10 bucks.

Even if you do get the hose from a Delorean vender they are not all the same. Be sure when you install it, it is far away from the "Vee" belt. If you get the wrong one or you don't install it right the underside will get cut by the belt and you won't see it until it is too late. Bend the support so it holds the hose away from the belt. Good luck finding a cross-over that fits. If you are replacing a hose you should do them all unless they were recently done. If the shipping is bothering you order some other things like bulbs (the tiny ones for the headlight and hazard switch) air and oil filters, struts, door seals, etc.

[PJ Grady Inc.]

To my knowledge Gates, Dayco, and any other OEM supplier has phased out all the preformed hoses that fit either side of the water pump. They were never intended for the Delorean application anyway but rather mundane minivan engines and other fluff nobody drives anymore. I know I must have offended a "soccermom" or two there but aren't they mostly driving SUV's nowadays?

I think the only sources are the vendors. I just recieved my first set of prototype silicone hoses from my new supplier (Special tooling and all).
I had an NOS set saved all these years and just used them to make the most exact duplicate of the NOS hoses you will find anywhere. Generally silicone hoses can last a lifetime if properly installed and aren't damaged by something first. Sorry but no colors at this time as I'm on the fence about the appropriateness. I think "Grady green" might look smart on my ride but I don't want to get too controversial with the colors or my car will keep getting slammed as an "abomination" on Facebook ;). No seriously!

I should have stock in about a month. I haven't figured an exact cost yet due to unknown shipping costs. I'm also considering the best clamp supplier and havn't decided on them yet. They will be the best fitting silicone hose set you can find whatever the price and will be in line with or possibly lower than the other sources I know of. Frankly I'm excited about my new hose kit and I mean this in the cleanest possible, internet friendly, low carbon footprint, no pun intended kind of way. Ok who have I offended now?
Rob



Even if you do get the hose from a Delorean vender they are not all the same. Be sure when you install it, it is far away from the "Vee" belt. If you get the wrong one or you don't install it right the underside will get cut by the belt and you won't see it until it is too late. Bend the support so it holds the hose away from the belt. Good luck finding a cross-over that fits. If you are replacing a hose you should do them all unless they were recently done. If the shipping is bothering you order some other things like bulbs (the tiny ones for the headlight and hazard switch) air and oil filters, struts, door seals, etc.

[DMCMW Dave]

The hoses now sold by the DMCH dealers are a Gates hose made to the original spec and size for this application. These were phased in about 1-2 years ago as the cross-references went away.

[Mark D]

I've got one of the new hoses of which Dave speaks and it is indeed identical to my original hose.

[jamesrguk]

Possibly not so convenient for USA customers, but don't forget Ed Uding offers a full set of hoses for the DeLorean in silicone.

http://www.delorean.eu/catalog/product_info.php?products_id=156001

I'm not a huge fan of the DMC logo which is on all of the bits, but still a very good quality kit made specially for the DeLorean.

Ed's quite quiet on this forum, but he always seems to be busy creating some excellent products for our cars.

J

[kings1527]

To my knowledge Gates, Dayco, and any other OEM supplier has phased out all the preformed hoses that fit either side of the water pump. They were never intended for the Delorean application anyway but rather mundane minivan engines and other fluff nobody drives anymore. I know I must have offended a "soccermom" or two there but aren't they mostly driving SUV's nowadays?

I think the only sources are the vendors. I just recieved my first set of prototype silicone hoses from my new supplier (Special tooling and all).
I had an NOS set saved all these years and just used them to make the most exact duplicate of the NOS hoses you will find anywhere. Generally silicone hoses can last a lifetime if properly installed and aren't damaged by something first. Sorry but no colors at this time as I'm on the fence about the appropriateness. I think "Grady green" might look smart on my ride but I don't want to get too controversial with the colors or my car will keep getting slammed as an "abomination" on Facebook ;). No seriously!

I should have stock in about a month. I haven't figured an exact cost yet due to unknown shipping costs. I'm also considering the best clamp supplier and havn't decided on them yet. They will be the best fitting silicone hose set you can find whatever the price and will be in line with or possibly lower than the other sources I know of. Frankly I'm excited about my new hose kit and I mean this in the cleanest possible, internet friendly, low carbon footprint, no pun intended kind of way. Ok who have I offended now?
Rob

A couple things here caught my eye:

1) a couple posts referenced the hoses being installed "correctly". Is there a specific technique to installing silicone hoses? I replaced mine about two years ago and haven't had any issues with them other than the occasional 'packing' issue and having to go back in and re-tighten a clamp or two. Maybe even off the back of the water pump under the manifold. Ugh.

and

2) I did see a nick on the driver's side hose like something did hit it. David T talked about the belt hitting it. Did I not install that right? How do you prevent that? It's not deep but deep enough to notice and see if I need to redo something.

Thanks....

[PJ Grady Inc.]

The main thing with silicone hoses is to use the correct clamps which have no open serrations for the worm gear as in an indented solid band.
Other things to keep in mind with any re-hosing job are;
1) Align the clamps worm gear exactly as the factory did it to avoid;
a) Dragging the worm gears on road debris or speed bumps
b) Blocking proper access for retentioning later on especially in the water pump area.
2) Clean all corrosion from coolant pipes and inspect for excessive pitting which would require lenghtening the hose utilizied or replacement of the coolant pipe.
3) It is recommended to retention all hoses after a few warmup/cooldown cycles but this is especially important with conventional rubber hoses. One of the advantages of silicone is they are more resilient and don't require retensioning as often.
Rob


A couple things here caught my eye:

1) a couple posts referenced the hoses being installed "correctly". Is there a specific technique to installing silicone hoses? I replaced mine about two years ago and haven't had any issues with them other than the occasional 'packing' issue and having to go back in and re-tighten a clamp or two. Maybe even off the back of the water pump under the manifold. Ugh.

and

2) I did see a nick on the driver's side hose like something did hit it. David T talked about the belt hitting it. Did I not install that right? How do you prevent that? It's not deep but deep enough to notice and see if I need to redo something.

Thanks....

[David T]

The main thing with silicone hoses is to use the correct clamps which have no open serrations for the worm gear as in an indented solid band.
Other things to keep in mind with any re-hosing job are;
1) Align the clamps worm gear exactly as the factory did it to avoid;
a) Dragging the worm gears on road debris or speed bumps
b) Blocking proper access for retentioning later on especially in the water pump area.
2) Clean all corrosion from coolant pipes and inspect for excessive pitting which would require lenghtening the hose utilizied or replacement of the coolant pipe.
3) It is recommended to retention all hoses after a few warmup/cooldown cycles but this is especially important with conventional rubber hoses. One of the advantages of silicone is they are more resilient and don't require retensioning as often.
Rob

Silicone is certainly the way to go but when you use a silicone hose there are some special procedures. NEVER use any sealant or glue. If you have a hard time putting the hose on lubricate with coolant. Silicone doesn't stretch or shrink, the hoses MUST be the exact correct size. Bad news for the automatic transmission cooler unless the hose is made to fit. Silicone hoses want to creep so there must be a bead on the end of the pipe. The hose clamp can't be on the very end of the hose, it needs to be at least 1/4" from the edge. As Rob mentioned, you shouldn't use the ordinary screw type clamps with the holes in them. Silicone hoses last a long time so if you ever have a shop working on the car don't let them cut them off and replace them (unless they need to be replaced).

[WNY1983]

Silicone is certainly the way to go but when you use a silicone hose there are some special procedures. NEVER use any sealant or glue. If you have a hard time putting the hose on lubricate with coolant. Silicone doesn't stretch or shrink, the hoses MUST be the exact correct size. Bad news for the automatic transmission cooler unless the hose is made to fit. Silicone hoses want to creep so there must be a bead on the end of the pipe. The hose clamp can't be on the very end of the hose, it needs to be at least 1/4" from the edge. As Rob mentioned, you shouldn't use the ordinary screw type clamps with the holes in them. Silicone hoses last a long time so if you ever have a shop working on the car don't let them cut them off and replace them (unless they need to be replaced).

I have a complete set of hoses for the engine still in the box if you would like to purchase them. DPI did motor work over the winter. I have now use for them They are black.
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