3b Delema (1 Viewer)

[Radd Cruisers]

I had posted some info on this customer of mine and would like some advice.

About 18 months ago I sold a rebuild kit to a customer in Comox, he had his log time mechanic do the rebuild.

After the rebuild the engine continued to smoke up hill.

Now go back 19 months and I will tell you what happened originally, this customer brought me a truck for inspection. I told him do NOT to buy this truck period.

he purchased the truck and dropped it off for me to go through some small issues. He later called and told me his mechanic said the engine needed a rebuild, I confirmed that the engine did not need a rebuild and he decided for the rebuild?

I sold him the kit, it was rebuilt and guess what, it still smoked like crazy.....

Now its 17 months later and he asks me to go through the truck, I do the fuel injection time and get it running very nice. The oil pressure and compression read that of a truck with extremely high milage. 9PSI cold oil pressure, 325 PSI compression hot????????

He is so happy after driving 100KM home he decides to get a bottle of wine to celebrate. After leaving the liquore store he gets about a kilometer from his house when the truck dies. Not able to even get it to turn over he decides its probably seized?

I recieve the truck on a flat bed tonight and was able to turn it over, it started with a very audable clunking noise.

Tommorrow I will pull the head first then the oil pan.

This customer is above all the one of the nicest human beings I have ever met, he is a principal of a school and outside regular school he has a old sainer(spelling?) that they use to bring under privilage kids and kayak the inside passage of Vancouver Island. Pretty coool. All is funded by the school board, the rest is by volounteer and Wayne with two teenage kids volounteers all of his time.

Any feedback on what you feel went wrong would be appreciated.

Rob

 

[Eric Winkworth]

How many KM's did the motor before the rebuild have? A clunking is usally something in the bottom. I hoesly don't have alot of experiance with diesels so I couldn't tell you.

But good luck with the rebuild, will be waiting for the outcome.

Funny, but I told you so just doesn't seem to say it!!!

Too bad though, hope he didn't pay alot for the old girl

Cheers
Eric

 

[Devils Paw 80]

A cracked block? Why did you originally advize him not to buy the truck-just curious.

 

[silvercrusher]

That oil pressure is crazy when hot. You have to have a cylinder pressurizing that oil system. Are you sure about the pressure? Seems like the filter should be blowing right off. I'd do a compression check on the cylinders to start then drop the pan. Could be just a head gasket i suppose but a cracked block seams more in line for that pressure.

 

[crustyBJ60]

Any feedback on what you feel went wrong would be appreciated.

Rob

ya.... he bought it!

cold oil pressure seems really low, same with the compression. did the mechanic who did the rebuild know toyota diesels?

sounds like the "rebuild" maybe not so good or not at all, did he use new pistons and jugs? not sure what comes in the "kit" you sold him, and who's to say his mechanic didn't re-use old parts.

i'm with gashog, why should he not have bought it in the first place?

crusty

 

[Radd Cruisers]

Regardless if that he did buy it, he is a nice guy who did not heed better judgement, pretty sure we all did this at one time or another.


Rebuild did consit of liners pistons etc, full meal deal.....


I will pull it appart tomorrow and give an update.

 

[crushers]

Rob,
why did you tell him not to buy the truck? do you know it's history from before he brought it to you?
smoked like crazy... could it be over fueling origianlly?
clunking? i would say a spun bearing...
cheers

 

[lshobie]

Sounds like the rebuild wasn't done by someone who was knowledgeable. The smoking - what colour was the smoke - white or black? White could be headgasket, white or black could be injection pump etc.

The clunk - hard to say, after a rebuild the clunks are supposed to be gone.

That engine will not run if the oil pressure is too low - there is an automatic cutoff should the oil pan be torn open, or oil filter come loose etc - mainly to save the engine. I can't remeber what the pressure is supposed ot be when at operating rpm though - what dos the manual say?

Let us know what happens.

Louis

PS what kind of KM does the engine have? if it is aound 3-400 k it stil has lotsa life left if it was looked after.

 

[Diescipel]

That oil pressure is crazy when hot. You have to have a cylinder pressurizing that oil system. Are you sure about the pressure? Seems like the filter should be blowing right off. I'd do a compression check on the cylinders to start then drop the pan. Could be just a head gasket i suppose but a cracked block seams more in line for that pressure.

I think that was 325 PSI engine compression when hot, meaning it's low.

 

[Radd Cruisers]

I solved the smoking issue, it was fuel timing and ran much better.

The guy up north had the pump off and tested twice, it was within spec.

Problem was the mechanic never timed it he would just aline the marks on the fuel pump and housing.

I think something was missed maybe on the rebuild.

I will also pull the oil pump and have a look.

The history of the truck was unknown, I just did not like the shoddy body work and overall it was in very poor condition for a 1981 BJ42, he payed way to much for it also.

Rob

 

[crushers]

it makes wonder why he bought it...

 

[cruiser_guy]

There are folks out there who bring the diesel engine to their long time GASSER mechanic. The problem is the diesel ISN'T the same as a gasser. I'm a back yard mechanic and I've fixed 3B's that were "fixed" by a regular mechanic. Gas and diesel is NOT the same beast!
I've got two 3B rebuild's under my belt and to the best of my knowledge both are fine.

My guess is the mechanic didn't have the torque specs or manual and something came undone or got missed.

 

[silvercrusher]

I think that was 325 PSI engine compression when hot, meaning it's low.

Oops ,teachers always told me effective reading was important.

 

[brownbear]

I hope your principal friend doesn't hang out here. He might not like being talked about.

Sometimes emotions come into play when making a purchase. You get sooo excited to buy the truck that you become blind to the obvious issues. But not listening to advice by the mechanic you hired to inspect it is not good judgement.