I4 engine diagram?

Can someone please send me to the site with the engine diagrams, I am afraid I am going to need one soon...


Just bought myself (actually for my wife) a “project” car, a 95 Toyota Camry with 145k. Engine and mechanicals seems to be sound and I got all bunch of service records from the previous owner. A couple of questions , regarding maintenance on this car:


1. Should I change the water pump?
according to the shop that serviced the vehicle, the timing belt was replaced at 125k but NOT the waterpump??? or drive belts....
Since my wife is going to be a primary driver I am concerned of missing that first leak of the waterpump and having the thing overheat, with 145k could be fatal .
Is there a coolant level warning light on the 95 Camry. If not is there any quick and dirty way of installing one? I was going to hook this light up to the security system’s siren and see what happens....
Is there any possibility that waterpump shaft is worn out to the point where it just snaps quietly and then overheats the engine without any leaks? By the way the radiator is replaced too.
2. I am going to bring this car to a closest shop and have them flush the break system, looks like it has never been done before. Is there any way power steering can be flushed too? If yes can I do it myself of ‘trust’ the shop with it?
3. Since I am now out of the money for another project, what can I do to extend the life of the engine/transmission? Synthetic oil, any additives?
4. Just today I noticed an oil leak, right below the water pump housing and while replacing the drive belts noticed that timing belt housing (the part of it that's adjacent to the engine) is all cracked. Could the oil be coming from there. I always thought that timing belt is "dry" and there should be no oil in there...
Also, how do you fix the weather seal on the door? I’ve tried spraying some silicone spray on it hoping it would expand, but it did not work.


Thank you,

"1. Should I change the water pump?
according to the shop that serviced the vehicle, the timing belt was replaced at 125k but NOT the waterpump??? or drive belts...."

IMO, don't change the water pump until you see a leak or at the next time you have to change the timing belt. It is not common that the water pump just dies with no warning. Usually, the seal starts leaking and you have a drip leak which gets faster with time. I don't believe leaving it alone will kill your engine unless you totally ignore leaks. If you don't know how old the drive belts are, I would change them.

"Is there a coolant level warning light on the 95 Camry. If not is there any quick and dirty way of installing one? I was going to hook this light up to the security system’s siren and see what happens...."

No, there is no coolant level warning light. I don't think it is necessary. Since you don't know the car, I would keep a close eye on fluids for the first couple of months, but after you get used to it, I would treat it like any other dependable car with 150K miles (somewhat carefully). I don't know of a coolant level warning system. The temperature gauge is adequate. Tell your wife to keep an eye on it at every stop light.

"Is there any possibility that waterpump shaft is worn out to the point where it just snaps quietly and then overheats the engine without any leaks?"

No, the waterpump shaft does not snap. The seals usually just slowly fail. I guess anything is possible, but this mode of failure is unknown to me.

"2. I am going to bring this car to a closest shop and have them flush the break system, looks like it has never been done before. Is there any way power steering can be flushed too? If yes can I do it myself of ‘trust’ the shop with it?"

Yes, the power steering system can be flushed. Trust the shop if you know them or have good recommendations.

"3. Since I am now out of the money for another project, what can I do to extend the life of the engine/transmission? Synthetic oil, any additives?"

Change the oil in the engine every 3000 miles or 3 months as recommended by many. As long as the powertrain is operating normally (no oil smoke, holds the oil level, transmission oil is red and stays up, etc.) don't add anything to the engine or transmission except high quality oil/transmission fluid. Flush the transmission when the oil needs to be changed. Don't just drop the pan and add fluid. There is alot of transmission fluid held up in the torque converter. If you have alot of short trips where the oil doesn't heat up often, change the oil more often and use synthetic oil which is more stable. (JMHO)

"4. Just today I noticed an oil leak, right below the water pump housing and while replacing the drive belts noticed that timing belt housing (the part of it that's adjacent to the engine) is all cracked. Could the oil be coming from there."

Yes, but without seeing it it is hard to say. Have a mechanic look at it and see where the leak is coming from specifically. If it is the front main seal, then you have to get it fixed. Might have to replace the timing belt if it gets oil on it.

"Also, how do you fix the weather seal on the door? I’ve tried spraying some silicone spray on it hoping it would expand, but it did not work."

Buy a new seal and either replace it yourself or have someone do it for you. I don't believe it is a big job. I doubt you can repair the seal. My Camry has a similar problem and I have ignored it.

Good luck.

Thanks a lot Brian for your advice!

I did replace the drive belts yesterday, works fine…

Thanks again.

I'm not sure of a web site that shows engine diagrams except for www.alldata.com which is a good site but is a for charge service.
You could get a Haynes manual at any auto-parts store for about $12.00 U.S.

You're welcome. Get the oil leak looked at ASAP. It might save your timing belt.