22r frustration

i have an 84 toyota pickup with a 22r engine (carb) dispite replacing the piston rings and valve seals, as well as most of its gaskets and tuning the carb it still consumes as much as 1 liter in a time of 2-4 weeks! there has to be a way of fixing it open to any sugetions exept geting a new motor/vehical.(cant aford it)

ps. i am also trying to get some more HP out of the engine. any sugestions?

Reply to
porter_pody_69
Loading thread data ...

pps. it has a 5speed tranny that wont stay in first gear as soon as i let go of the shister it falls out of first (but not any other gear) and if you hold it in it will only push your hand back and pop out any way! i have alredy replaced the shifter seet bushing, this helped but only slitly (now it works 1/4 the time insted of never) any ideas? planing on rebuilding the tranny.

Reply to
porter_pody_69

I assume you mean 1 liter of oil in 2-4 weeks. A few questions. How many miles do you travel in that period of time ? What was the oil consuption before you did any repairs ? Is it possible it is leaking instead of burning it ? How many miles on the engine before repairs ? How many miles on the engine since the rings and valve seals were replaced ? Is the PCV system working properly ?

Reply to
Mike

yes you are rite 1 liter for 2-4 weeks in this time i usualy only traval to work and back 5 days per week and the odd arend, maby an houre per day avrage. the repairs cut the consumption almost in half, it was way wors befor. yes it does have a peculiar leak, the hose from the front top of the head (not pcv valve but an other hose leading to the intake) spuse! out an oily gas constantly. i have it dis conected from the intake becaus it destrys the filter. it also burns oil ecspesialy when you give it some gas. but pcv pressur seems way to high! the truck had 300k on it befor the fixes and 3-4k after. thanks!

ps. i am dislexic so my spelling isnt the best sory.

Reply to
porter_pody_69

I guess the best place to start is with the PCV system. The hose you mention that is spewing oil into the air cleaner is part of the PCV system. That hose is supposed to let clean air into the engine as the PCV hose removes the vapors from the crankcase. You need to check the other hose that is hooked to the PCV valve for vacuum. Remove the PCV valve from the end of the hose and check for a vacuum with the engine running. There should be a strong vacuum on that hose and the engine may die when you remove your finger from the end of the hose. If you have vacuum on the hose put the PCV valve back and try it again. You should still feel a vacuum when you put your finger over the open end of the PCV valve. Do you have a good vacuum at the PCV valve ?

Reply to
Mike

Did you check the pistons/piston walls for wear and roundness before hone-ing them? If they are beyond wear limits and/or not round then new rings won't do much. If ok did you hone the cylinder walls so the new rings would seat properly? Did you have the valves reground and lapped? Did you have the vavle guides knurled or replaced - new seals won't fix those issues.

Reply to
Wolfgang

What you mention above could also be the cause of the oil consumption. But, an inop PCV system is quit often overlooked as the cause of oil consuption. I mentioned to check the PCV system for proper operation first as that is the simplest and easiest thing to check. If the PCV system is ok then it time to check other possibilities. Always chek the easy stuff first.

Reply to
Mike

i checked the pcv for vacume and there is plenty! but when i took the valve itself out the same oily gas as the other hole spuse came out of the pcv valve seet. it seems as though i have exedingly high crank case pressur. what shoud i try, to fix it. ps. no i did not check the cilenders when i replaced the rings nor did i hone them as i had no means of doing so, is it to late to take it apart and do so?

Reply to
porter_pody_69

If you have good vacuum at the PCV valve then it sounds like excessive crankcase pressure is the problem. At this point you may have to take the engine apart and look everyhting over. Before you do that you might want to do a compression test. This will give you and idea of how well the rings are working. A cylinder leakdown test may help in diagnosing as well. You may find that it will be cheaper to find a used engine that is in good shape and swap your engine out.

Reply to
Mike

cheep isnt the only factor. used parts are cheep if you can find them but i have never been able to find anything used to fit my truck. alwas new parts.

Reply to
porter_pody_69

Try Ebay or if you live near to CALIFORNIA i know a person in Mexicali BC where who got most of the 22r, 22re parts.

Reply to
Evil4Runner

no i live in nova scotia canada on the east coast. and nothing on ebay is close enough to be worth buying because of shiping costs, eveything is alwas in the west! very anoying.

Reply to
porter_pody_69

Ok, so scrap the old truck and buy a new one

Reply to
Noon-Air

these trucks are VERY! hard to come by and are rarly in beter shape than mine. which has problems only with the drive trane. besides i cant aford a truck in any beter shape even if i found it. i see no reson or merit to scrap a mostly woking truck, that when working will be beter than any other car i can aford!! pleas if you have no advice on how to fix my truck, dont give advice on how not to!

Reply to
porter_pody_69

Well, if you can't find used parts and you don't mind tearing the engine down again you have that option as well. I would stil do a compression test and cylinder leakdown test to help in diagnosing the problem before you tear it apart . You want to check valve/ valve guide wear, piston to cylinder wall clearance, cylinder bore size, piston ring end gap and anything else that would cause excessive blowby. Also make sure you dont have any piston rings that are stuck in the ring groove. If you didn't hone the cylinders when you rebuilt it the last time you may want to do that as well. It's entirely possible the rings never seated and that would cause most of the problems you describe.

Reply to
Mike

that sounds like the way to go. i have done a compresion test and it doesnt seem to fare off but i have never done a leakdown test. how is it done?

Reply to
porter_pody_69

i am also in the proses of re building the transmision (5 speed 4x4 G52). i have it striped down to just the tansmition it self and cant figger out how to get in to it. the reson for doing this is that my first gear will barly ever stay engaged it pops out when ever power is aplyed. i tried replacing the shifter seet bushing but to no inprovment, i suspect the sincro is gone but there is no teling yet. first i need to see what is the problem. if any one has a transmition service manual for my trany or even knows the prosedur preas email it to me at porter_pody snipped-for-privacy@hotmail.com

Reply to
porter_pody_69

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.