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Old 08-17-2013, 04:24 PM   #1
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1982 310 turbo diesel engine water pump

does anyone have a source for a replacement for the water pump on my isuzu diesel. ive searched everything i know of and cant seem to find the right one that is on my '82 310 isuzu 6bd1. mine blew on the road today and need a replacement asap. any help will be much appreciated.

on a side note, i replaced the front suspension airbags yesterday with the air lift models from truckspring.com. little over a hundred bucks for the pair including the hose and valves to run up under the hood. i heated the air bags in the oven at 170 degrees for about 20 minutes before i folded them length ways and then used hose clamps to compress and tighten them so they would fit through the hole on the swing arm. with a little help from some hand cleaner as a lubricant this seemed to work real well. i used a 5/16 socket on my cordless drill to tighten the clamps and then to remove them one by one as i worked the bags up into the hole. it wasnt an easy job my any means but worked pretty darn good for those of you facing that task.

got to find that water pump though so please help if you can. thanks so much
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Old 08-17-2013, 05:23 PM   #2
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Originally Posted by mayco View Post
does anyone have a source for a replacement for the water pump on my isuzu diesel. ive searched everything i know of and cant seem to find the right one that is on my '82 310 isuzu 6bd1. mine blew on the road today and need a replacement asap. any help will be much appreciated.

on a side note, i replaced the front suspension airbags yesterday with the air lift models from truckspring.com. little over a hundred bucks for the pair including the hose and valves to run up under the hood. i heated the air bags in the oven at 170 degrees for about 20 minutes before i folded them length ways and then used hose clamps to compress and tighten them so they would fit through the hole on the swing arm. with a little help from some hand cleaner as a lubricant this seemed to work real well. i used a 5/16 socket on my cordless drill to tighten the clamps and then to remove them one by one as i worked the bags up into the hole. it wasnt an easy job my any means but worked pretty darn good for those of you facing that task.

got to find that water pump though so please help if you can. thanks so much
I believe this is the part no. Isuzu #913617640. Try this outfit,

Hamilton Engine Sales
5540 N.E. Columbia Blvd.
Portland, Oregon 97218 (503) 280-1353

Craig is their parts guy and he really knows these engines.
These are industrial engines and common in commercial fishing fleets so a commercial marine engine service would be another source.

Another possibility is to take it to good auto parts shop an have them send it to their rebuilder to be rebuilt. This usually takes more time than finding one on a shelf.
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Old 08-17-2013, 08:45 PM   #3
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thanks so much dan i'll give them a try on monday. i assume ill need to get at the water pump through the front so i suppose the grill and radiator will need to come off. this will be my first time getting to this motor, ive replaced many water pumps before but never on an AIRSTREAM 310.
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Old 08-18-2013, 01:35 AM   #4
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thanks so much dan i'll give them a try on monday. i assume ill need to get at the water pump through the front so i suppose the grill and radiator will need to come off. this will be my first time getting to this motor, ive replaced many water pumps before but never on an AIRSTREAM 310.
Through the front is probably the easiest way to get to it however I have not been through the exercise myself. Be sure to take and post lots of pictures so we can all join in on your fun.

By the way you might ask a moderator to move this to the "classic motorhome section", it would be easier for the motorhome guys to find.
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Old 08-18-2013, 06:57 AM   #5
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thanks again dan. ok, im not real good at navigation on this site but ill give that a shot. in fact, im not real great with a computer in general but ive got people to give me advice on how to get stuff done. ill do my best to post some pics along the way here. im gonna start today on tearing it down. i guess i better be looking for belts and hoses also, might as well replace everything that looks at all suspect. give me a 1959 chevy 235 6 cylinder and im all good, but this isuzu diesel scares me a bit i must say. but.....a water pump is a water pump i guess!!
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Old 08-27-2013, 03:41 PM   #6
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dear dan (smartstream),
i hope that everyone who owns a classic turbo diesel reads what i am about to say. first of all thankyou, thankyou, thankyou, for turning me on to hamilton engine sales of portland oregon. i would have been lost without these guys. i cant tell you how much i appreciate you sharing those folks with me about the 1982 6bd1 turbo engine. i have been dealing with Andy T., at hamilton, he has been more than incredible, and he is absolutely an expert on this motor that airstream put im the 310. he has been so kind and answered and explained so many questions i just cant give enough credit to him for his help. i am ending up replacing the harmonic balancer and the front engine cover (timing gear cover), water pump pulley, and some other odds and ends that were damaged when my balancer cracked in half on the highway and apparently flung around in there long enough to do some real damage to adjacent parts including the radiator. but......the good news is, andy was able to find all the necessary parts, in stock, at various locations throughout the country and have all been shipped to me and im ready to get this repair going. i was able to pull the grill, the hood, transmission cooler, radiator, fan, and all other parts that were in the way to getting to the balancer and i will be towing the rig to the shop to let the pros handle replacement of the balancer itself. im hoping and praying that there was no damage done to the crankshaft itself, we will assume thats the case. must be positive. so anyway, HAMILTON ENGINE SALES, PORTLAND OREGON. GOOGLE THEM UP. any turbo diesel owner should have these guys in their pocket for future reference, thankyou one more time dan. ive got pics if anybody is interested, nothing too exciting, its just the front end all pulled apart all the way back to the motor. if anybody wants to see them just respond and ill see if i can figure out how to post them to this site.
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Old 08-27-2013, 05:28 PM   #7
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dear dan (smartstream),
i hope that everyone who owns a classic turbo diesel reads what i am about to say. first of all thankyou, thankyou, thankyou, for turning me on to hamilton engine sales of portland oregon. i would have been lost without these guys. i cant tell you how much i appreciate you sharing those folks with me about the 1982 6bd1 turbo engine. i have been dealing with Andy T., at hamilton, he has been more than incredible, and he is absolutely an expert on this motor that airstream put im the 310. he has been so kind and answered and explained so many questions i just cant give enough credit to him for his help. i am ending up replacing the harmonic balancer and the front engine cover (timing gear cover), water pump pulley, and some other odds and ends that were damaged when my balancer cracked in half on the highway and apparently flung around in there long enough to do some real damage to adjacent parts including the radiator. but......the good news is, andy was able to find all the necessary parts, in stock, at various locations throughout the country and have all been shipped to me and im ready to get this repair going. i was able to pull the grill, the hood, transmission cooler, radiator, fan, and all other parts that were in the way to getting to the balancer and i will be towing the rig to the shop to let the pros handle replacement of the balancer itself. im hoping and praying that there was no damage done to the crankshaft itself, we will assume thats the case. must be positive. so anyway, HAMILTON ENGINE SALES, PORTLAND OREGON. GOOGLE THEM UP. any turbo diesel owner should have these guys in their pocket for future reference, thankyou one more time dan. ive got pics if anybody is interested, nothing too exciting, its just the front end all pulled apart all the way back to the motor. if anybody wants to see them just respond and ill see if i can figure out how to post them to this site.
I'm glad to hear the guys at Hamilton are taking care of you, they have always been very helpful to me and above all else they have the knowledge. Sorry to hear about the harmonic balancer and other stuff but now is the time to make it right while you have everything apart and good access. Definitely post lots of pictures.
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Old 08-28-2013, 05:41 AM   #8
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Old 08-28-2013, 05:43 AM   #9
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that last pic is HALF the harmonic balancer that was wedged between the radiator and the block when we got it home
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Old 09-02-2013, 12:08 AM   #10
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Great pictures. Are you going to run the belt for the dash air compressor? It runs only from the water pump to the compressor. Unless you keep the alternator belts really tight starting the A/C will stop the fan and really squeal the belts. I've been thinking about putting a third pulley on the crank and running the belt around it but it looks like I will have to fabricate an idler pulley to deflect the belt around the power steering pump. At least there are some bolts in the area to mount the idler. It looks like there is a tab on the lower bolt of the power steering pump. I don't think that is part of the pump flange but it's hard to tell from the picture.
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Old 09-03-2013, 06:48 AM   #11
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good question dan. im new to this vehicle and to the rv life and learning as i go here. ive read and read about running the dash air on the turbo diesel and its pros and cons. it seems to me that from the info i have gathered that the dash a/c on this model is marginally efficient at best. the po had disconnectected the system and removed the belt driving the a/c. so i am assuming we have a problem with one of the components (compressor) and i have to make a choice whether to spend the money to repair/replace/rebuild the dash air system now while ive got the thing torn down or not. i am seriously leaning towards NOT. it sounds to me that most folks find that the dash air is insufficient to cool even the cab area and run the genset and roof air to really keep the coach comfortable. sooooooo, i think that ill leave the dash air disconnected for now, and see how it goes with cooling, lp consumption from the genset running while traveling, and so forth. ive done a little testing while static and closed the slider at the kitchen hallway opening and the roof air does a GREAT job of cooling the front end of the rig. ive read that the lp fueled genset can be quite a thirsty devil so i am concerned a bit about that but we will try it and see. hope to have my rig put back together by the end of this week so i can move on with other projects. ........i miss her!!!
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Old 09-03-2013, 06:59 AM   #12
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on a side note, noone warned me of the ensuing addiction after the purchase of one of these classic airstream motorhome beauties. there should be another organization formed with the acronym AA. AIRSTREAM ANONYMOUS (rather than the alcoholics anonymous)
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Old 09-12-2013, 02:01 AM   #13
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Hi, I'm Marty. A new 1982 310 turbo owner (March 2013). I am currently replacing the water pump and needed the part number. Thanks for the info. Tell me more about the harmonic balancer, where it is, what to look for. While she is all apart should I replace it now? I have been having fanbelts pop and just replaced the bearings in the alternator for a second time. I agree with the AA idea as I have spent more time repairing than using my airstream. Hopefully that trend will reverse.

Thanks again for your information.
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Old 09-13-2013, 07:09 AM   #14
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hey marty, ill just answer what you asked and if you have further questions feel free to ask. i didnt end up replacing the water pump, ended up not being the problem. so i dont have a part number for you but one call to HAMILTON ENGINE that i mentioned above will get you the right pump. their parts guys are incredible. the harmonic balancer is the large circular part that is just behind the belt pulley on your crankshaft. (the lower pulley on the front of your motor) we have not been able to determine why mine cracked and failed. im putting a new one on ,along with replacing numerous parts that were damaged when the balancer failed on the highway and flung about hitting the radiator and other things in the process. the balancer really should last forever although occasionally people need to replace them for some reason. if i were you, unless there is an obvious problem with yours, i wouldnt touch it. its not a routine maintenance type item. as far as your fan belts popping, i cant tell you what might be the problem there, could be a number of things but you better have your mechanic take a good look. im new to the AIRSTREAM owners subculture here also and have been doing a great deal of work on my 310 also. a little frustrated right now but hopefully ill have her ready for at least one or two short excursions yet this fall. hit me back with any questions you may have regarding this current project. as you can see ive got her torn down quite a ways to get to the front of the motor, learning a great deal about the rig as i go here. ive replaced the airbags all the way around and front shocks. also going through all the systems one by one and making repairs as i go. shes in real good shape but this balancer thing has me concerned. still dont know why mine failed and cracked in half.
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